Best DHCP server ever.

A tcp packet walks in to a bar and says “I want a beer”, barman says “you want a beer?” and tcp packet says “yes, a beer” .

In high society, TCP is more welcome than UDP. At least it knows a proper handshake.

A bunch of TCP packets go into a bar, until it’s overcrowded. The next day, half as many go in.

A bunch of TCP packets walk into a bar. The bartender says, “Hang on just a second, I need to close the window.”

When I try to send SYNs to chicks, I don’t get any ACKs. Just FINs and RSTs.

IP packet with TTL=1 arrives at bar. Bartender: “Sorry, can’t let you leave…and you don’t get any beer either…” 

The worst part about token ring jokes is that if someone starts telling one while you are telling yours, all joking stops.

The great thing about TCP jokes is that you always get them.

The problem with TCP jokes is that people keep retelling them slower until you get them.

I would tell some UDP jokes too but I never know if anyone gets them

The best thing about UDP jokes is that I don’t care if you get them or not.

I had a funny UDP joke to tell, but I lost it somewhere...

The sad thing about IPv6 jokes is that almost no one understands them and no one is using them yet.

I tried to come up with an IPv4 joke, but the good ones were all already exhausted.

A DHCP packet walks into a bar and asks for a beer. Bartender says: “here, but I’ll need that back in an hour!

DHCP jokes only work when there is only one person telling them

The worst part of SSH jokes is that, even when they're not funny, you suck it up and just pretend they were anyway.

The problem with token ring jokes is you need to wait your turn to laugh

I’d make a joke about UDP, but I don’t know if anyone’s actually listening…

Holy fucking hell!
Who the fuck sets up a local network with an 255.255.0.0 subnet mask and then lets the dhcp-server distribute clients onto the 192.249.x.x., 192.2.x.x and the 192.22.x.x networks AT FUCKING RANDOM???
I need to SSH onto 40 routers distributed across the entire campus and have a WORKING internet connection while doing so and you make me spin the connect-disconnect-wheel. Fucking hell dude, don't give me that "Uh, it wasn't intended for this size"-bullshit. You have about 200 active devices. And in one subnet you have space for more than 60 000. Fuck you, dumbass! OH, YOUR FUCKING LIST IS FUCKING WRONG AND YOU DON'T REMEMBER THE IP OF THE ROUTERS? OH FUCK YOU EVEN HARDER!!!
Goddamn people why does legacy maintenance always suck so much?😭😭😭

One comment from @Fast-Nop made me remember something I had promised myself not to. Specifically the USB thing.
So there I was, Lieutenant Jr at a warship (not the one my previous rants refer to), my main duties as navigation officer, and secondary (and unofficial) tech support and all-around "computer guy".
Those of you who don't know what horrors this demonic brand pertains to, I envy you. But I digress. In the ship, we had Ethernet cabling and switches, but no DHCP, no server, not a thing. My proposition was shot down by the CO within 2 minutes. Yet, we had a curious "network". As my fellow... colleagues had invented, we had something akin to token ring, but instead of tokens, we had low-rank personnel running around with USB sticks, and as for "rings", well, anyone could snatch up a USB-carrier and load his data and instructions to the "token". What on earth could go wrong with that system?
What indeed.
We got 1 USB infected with a malware from a nearby ship - I still don't know how. Said malware did the following observable actions(yes, I did some malware analysis - As I said before, I am not paid enough):
- Move the contents on any writeable media to a folder with empty (or space) name on that medium. Windows didn't show that folder, so it became "invisible" - linux/mac showed it just fine
- It created a shortcut on the root folder of said medium, right to the malware. Executing the shortcut executed the malware and opened a new window with the "hidden" folder.
Childishly simple, right? If only you knew. If only you knew the horrors, the loss of faith in humanity (which is really bad when you have access to munitions, explosives and heavy weaponry).
People executed the malware ON PURPOSE. Some actually DISABLED their AV to "access their files". I ran amok for an entire WEEK to try to keep this contained. But... I underestimated the USB-token-ring-whatever protocol's speed and the strength of a user's stupidity. PCs that I cleaned got infected AGAIN within HOURS.
I had to address the CO to order total shutdown, USB and PC turnover to me. I spent the most fun weekend cleaning 20-30 PCs and 9 USBs. What fun!
What fun, morons. Now I'll have nightmares of those days again.

So, continuing the story, in reverse order, on the warship and its domain setup...
One day, the CO told me that we needed to set up a proper "network". Until now, the "network" was just an old Telcom switch, and an online HDD. No DHCP, no nothing. The computers dropped to the default 169.254.0.0/16 link local block of addresses, the HDD was open to all, cute stuff. I do some research and present to him a few options. To start things off, and to show them that a proper setup is better and more functional, I set up a linux server on one old PC.
The CO is reluctant to approve of the money needed (as I have written before, budget constraints in the military is the stuff of nightmares, people there expect proper setups with two toothpicks and a rubber band). So, I employ the very principles I learned from the holy book Bastard Operator From Hell: terrorizing with intimidating-looking things. I show him the linux server, green letters over black font, ngrep -x running (it spooks many people to be shown that). After some techno-babble I got approval for a proper rack server and new PCs. Then came the hard part: convincing him to ditch the old Telcom switch in favour of a new CISCO Catalyst one.
Three hours of non-stop barrage. Long papers of NATO specifications on security standards. Subliminal threats on security compromises. God, I never knew I would have to stoop so low. How little did I know that after that...
Came the horrors of user support.
Moral of the story: an old greek saying says "even a saint needs terrorizing". Keep that in mind.

So my ethernet randomly stopped working on Arch.

At first I thought it had to do with a conflict between it and my tethered phone, so I tried removing all my connections. Still wasn't working.

Next I tried to test the driver itself and make sure it loaded on boot. It loaded, but was disconnected.

Next I decided "fuck it, I know I was just using the internet on Windows, but I'll check the ethernet cable is still plugged in anyway". It was, and it was returning the right MAC address, but still no connection.

So I try debugging the driver further. Everything seemed fine, except it would time out trying to establish a dhcp connection.

Finally I figured, maybe Microsoft tried to troll me and lock out the ethernet waking on boot. So I restart my computer, load into windows and check my ethernet driver, it seems fine. I go to disable the shutdown of the card on OS shutdown. Turns out this driver no longer has that capability.

Wait a minute!? Windows is also having connection issues!?

I look to my left.

Fuck my life...

My router was off... I must of kicked the powerboard under my desk..........

Finally got myself a Lytro Illum!
I,v been wanting to buy one since it came out but the company who made it closed down in 2015..
Thoose fuckers just thrown everything in the trash and set it on fire, software, firmware, mobile app etc.. no open source, no archives, your expensive camera is now a paper weight! You’r welcome!
So i got myself a new hobby, started reverse-engineering the fuck out of it, luckily it’s based on android (api17), i have adb and it’s running a hidden DHCP server too so it’s coming along nicely :D
I’m planning to make a camera control mobile app for it and maybe some faster image processing, wifi sharing etc..
I love beeing in home office :D

I was at the airport, 2AM, waiting for the plane I was supposed to board to come from another airport... Got bored, scanned the WiFi networks, found an open network with the ID of the airline I had booked with, joined, and tried port 22 on the gateway... It was a Cisco router with the default password... Needless to say, I thought I needed to teach those guys a lesson... Messed the routing table, changed its IP, disabled DHCP, and restarted the router. Needless to say, we couldn't board because they couldn't check us in...

A third party manages access to a web application I’m supposed to begin using. While accessible from the Internet, they whitelist IP addresses, so it rejects the login credentials if not coming from a whitelisted address.

I provided my external IP address to their support team but the application was not letting me in, so I called their help desk. A support technician said that my IP address was 10.x.x.x, a private IP address. I’m not on the same network as this application, so I did a quick check and realized they are reading my internal IP address from my X-FORWARDED-FOR (XFF) header (yes, my employer exposes this).

I explain to him that the application is incorrectly reading my external (connection) IP address and is instead reading my internal IP address from my XFF header. I also explain that it’s not a good idea to add a private IP address to their whitelist as it somewhat defeats the point as anyone can assign that IP address within their network and expose it via an XFF header.

After talking to numerous support personnel, I came to the conclusion that not a single support person on their team understands basic networking and private IP address ranges.

I finally just said, “Fine. Go ahead and add my internal IP address but keep in mind it will change a lot.”

He then proceeded to “explain” to me how my IP address is assigned by my ISP and should change very infrequently. I explained to him that the IP address their application is reading is actually assigned by DHCP inside my network, but I was clearly wasting my breath.

Worst part of devving? Handling fucking time. GMT, EST, daylight savings, DHCP settings overriding the actual time because some fuckwit runs a server incorrectly, dealing with Voip phones and their super flaky time profiles. Fuck time.

First lecture of computer networks. Let's shove all of these abbreviations with their meaning, and possibly a associated port number in one 1.5 hour lecture:

HTTP, HTTPS, FTP, FTPS, SFTP, TCP, IP, UDP, ISP, DSL, DNS, LAN, WLAN, WDM, P2P, TELNET, PGP, TLS, SSL, SSH, MIME, SMTP, POP3, IMAP, IANA, DHT, RTT, DHCP

I really feel sorry for students who didn't have previous knowledge about this stuff..

I have a Windows machine sitting behind the TV, hooked to two controllers, set up as basically a console for the big TV. It doesn't get a lot of use, and mostly just churns out folding@home work units lately. It's connected by ethernet via a wired connection, and it has a local static IP for the sake of simplicity.

In January, Windows Update started throwing a nonspecific error and failing. After a couple weeks I decided to look up the error, and all the recommendations I found online said to make sure several critical services were running. I did, but it appeared to make no difference.

Yesterday, I finally engaged MS support. Priyank remoted into my machine and attempted all the steps I had already tried. I just let him go, so he could get through his checklist and get to the resolution steps. Well, his checklist began and ended with those steps, and he started rather insistently telling me that I had to reinstall, and that he had to do it for me. I told him no thank you, "I know how to reinstall windows, and I'll do it when I'm ready."

In his investigation though, I did notice that he opened MS Edge and tried to load Bing to search for something. But Edge had no connection. No pages would load. I didn't take any special notice of it at the time though, because of the argument I was having with him about reinstalling. And it was no great loss to me that Edge wasn't working, because that was literally the first time it'd ever been launched on that computer.

We got off the phone and I gave him top marks in the CS survey that was sent, as it appeared there was nothing he could do. It wasn't until a couple hours later that I remembered the connectivity problem. I went back and checked again. Edge couldn't load anything. Firefox, the ping command, Steam, Vivaldi, parsec and RDP all worked fine. The Windows Store couldn't connect either. That was when it occurred to me that its was likely that Windows Update was just unable to reach the internet.

As I have no problem whatsoever with MS services being unable to call home, I began trying to set up an on-demand proxy for use when I want to update, and I noticed that when I fill out the proxy details in Internet Options, or in Windows 10's more windows10-ish UI for a system proxy, the "save" button didn't respond to clicks. So I looked that problem up, and saw that it depends on a service called WinHttpAutoProxySvc, which I found itself depends on something called IP Helper, which led me to the root cause of all my issues: IP Helper now depends on the DHCP Client service, which I have explicitly disabled on non-wifi Windows installs since the '90s.

Just to see, I re-enabled DHCP Client, and boom! Everything came back on. Edge, the MS Store, and Windows Update all worked. So I updated, went through a couple reboots-- because that's the name of the game with windows update --and had a fully updated machine.

It occurred to me then that this is probably how MS sends all its spy data too, and since the things I actually use work just fine, I disabled DHCP Client again. I figure that's easier than navigating an intentionally annoying menu tree of privacy options that changes and resets with every major update.

But holy shit, microsoft! How can you hinge the entire system's OS connectivity on something that not everybody uses?

Pro tip:

Make sure you can RECOVER from your backups.

It's all well and good backing this and that up, but make sure that when the shit really hits the fan you can recover.

I've now 4 days into recovering a raspberry pi that ran:
Pi-hole
Snort
DHCP
VSFTP
Logwatch
Splunk forwarder
Grafana

And serveral other things... I've learnt my lesson

Whoever it was that thought that MAC address spoofing/randomization for "muh network security" was a good idea, I'm gonna violently fucking murder them. It doesn't solve jack shit for security, doesn't magically make your network device "anonymous" or whatever and it never fails to confuse my DHCP servers that use those fucking things. Whoever it was, hang yourself or I'll fucking do it for you. Filthy incompetent motherfucker!!

Network Security at it's best at my school.
So firstly our school has only one wifi AP in the whole building and you can only access Internet from there or their PCs which have just like the AP restricted internet with mc afee Webgateway even though they didn't even restrict shuting down computers remotely with shutdown -i.
The next stupid thing is cmd is disabled but powershell isn't and you can execute cmd commands with batch files.
But back to internet access: the proxy with Mcafee is permanently added in these PCs and you don't havs admin rights to change them.
Although this can be bypassed by basically everone because everyone knows one or two teacher accounts, its still restricted right.
So I thought I could try to get around. My first first few tries failed until I found out that they apparently have a mac adress wthitelist for their lan.
Then I just copied a mac adress of one of their ARM terminals pc and set up a raspberry pi with a mac change at startup.
Finally I got an Ip with normal DHCP and internet but port 80 was blocked in contrast to others like 443. So I set up an tcp openvpn server on port 443 elsewhere on a server to mimic ssl traffic.
Then I set up my raspberry pi to change mac, connect to this vpn at startup and provide a wifi ap with an own ip address range and internet over vpn.
As a little extra feature I also added a script for it to act as Spotify connect speaker.
So basically I now have a raspberry pi which I can plugin into power and Ethernet and an aux cable of the always-on-speakers in every room.
My own portable 10mbit/s unrestricted AP with spotify connect speaker.
Last but not least I learnt very many things about networks, vpns and so on while exploiting my schools security as a 16 year old.

## Building my own router

IT HAS ALREADY PAID OFF!!!!!

So I (with my fam) have evacuated from the capital of Lithuania into a distant place - much smaller, where average age is prolly >30 or even >40 years. I live in a village now. In a house with very good neighbours. In fact these neighbours own that house :D

Back to the point.

So these neighbours used to share their wifi (w/ internet) between the two houses. They have the line, the mian router has quite a strong antenna and that other house has 2 repeaters: 1 on the outside wall and another one -- indoors. Sepeaters are connected sequentially, i.e. the indoors one is repeating the outdoors one. ikr....?

The first day was alright. We settled in, got everything set up wifi-wise. Peachy.

The second day repeaters refused to issue a DHCP IP. That's something, right? Alright, nvm - I don't mind setting up static IPs. In fact I prefer them over the DHCP magic!

And by the noon both repeaters were connectable but neither of them could provide internet connection... We that sucks! I restarted both of them a few times, neighbours restarted their main router -- still no luck.

Here comes my router [God am I happy with this purchase and the whole idea of a customized router!!! Thanks @hakx20!].

I brought it outside, plugged it in. Connected to it through it's hotspot, used nmcli to connect to neighbours' main router with an internal wifi card (that shitty mPCIe operating in USB mode. yes, the same one, manufactured in 2003. Yes, in g mode.). A couple of iptables rules for traffic forwarding et voila! I have built my own repeater! And tomorrow I can WFH w/o any issues.

Yes, hardware routers are faster and easier to maintain. Yes, hardware routers are cheaper and usually have nicer bells and whistles. But when hardware fails you and the last thing you want is going to the public (shop), soldering rod won't help you. A software solution becomes the easiest to set up, considering you know how to.

Boi am I so happy about my purchase! CentOS router FTW!

P.S. even though we've fled the city we are responsible citizens and we've self-quarantined ourselves for the 14 days period. No local person any closer than 10 meters for the whole period until we're cleared. Being away from the city gives us sooo much freedom! Especialy now, when cities are shitting bricks in fear.

Sometimes I have to work with physical hardware. There are over 300 machines in our lab, split among two subnets. But for some reason, I can never access my machines by hostnames.

Every other week, there's an IP conflict on this network, requiring me to log into the active directory server and delete old DNS entries. This usually happens because someone decided to deploy 64 VMs on a huge server, all at once, didn't boot them with a delay, let alone with with a warning to IT.

Then when my superior asks how my progress has been and I respond with "I can't even get the machines to ping each other by hostname, there's something wrong with the DNS:, I get the following response: "HOW COME NOBODY ELSE IS HAVING PROBLEMS WITH THIS. YOU'RE FULL OF SHIT", from someone who spends 90% of the year abroad, working remotely.

when you only have 5 hours of public internet access and you spend 2 of them fighting with the network because the router's dhcp rules somehow manage to crash the dhcp service 100% of the time

There's something special about teaching DHCP to your barber...

So I recently moved into an student house. Its really awesome but the only thing thats frustrating as fuck is the internet. Its like 50 - 200 kbs. I litterally type in slow motion over ssh. It stops working every few days and the dhcp range is to small :(. Not like my landlord can't afford better internet. There are like 50 people in this building and I think we have the basic abbonement.

Luckily I get my own internet next thuesday. I can't wait.

At the institute I did my PhD everyone had to take some role apart from research to keep the infrastructure running. My part was admin for the Linux workstations and supporting the admin of the calculation cluster we had (about 11 machines with 8 cores each... hot shit at the time).

At some point the university had some euros of budget left that had to be spent so the institute decided to buy a shiny new NAS system for the cluster.

I wasn't really involved with the stuff, I was just the replacement admin so everything was handled by the main admin.

A few months on and the cluster starts behaving ... weird. Huge CPU loads, lots of network traffic. No one really knows what's going on. At some point I discover a process on one of the compute nodes that apparently receives commands from an IRC server in the UK... OK code red, we've been hacked.

First thing we needed to find out was how they had broken in, so we looked at the logs of the compute nodes. There was nothing obvious, but the fact that each compute node had its own public IP address and was reachable from all over the world certainly didn't help.
A few hours of poking around not really knowing what I'm looking for, I resort to a TCPDUMP to find whether there is any actor on the network that I might have overlooked. And indeed I found an IP adress that I couldn't match with any of the machines.

Long story short: It was the new NAS box. Our main admin didn't care about the new box, because it was set up by an external company. The guy from the external company didn't care, because he thought he was working on a compute cluster that is sealed off behind some uber-restrictive firewall.

So our shiny new NAS system, filled to the brink with confidential research data, (and also as it turns out a lot of login credentials) was sitting there with its quaint little default config and a DHCP-assigned public IP adress, waiting for the next best rookie hacker to try U:admin/P:admin to take it over.

Looking back this could have gotten a lot worse and we were extremely lucky that these guys either didn't know what they had there or didn't care.

So I my boss told me about an interview ha had for a new account manager position.
${BOSS} so can you tell me about your knowledge with DNS and DHCP?
${GIRL} I have no idea, I dont listen to West Coast rap
${BOSS} ...

This is why you should NEVER do tech favours for friends...

As a Christmas present I setup a WiFi router for a friend (Natted to the ip it acquires through DHCP). Since then I have had numerous messages from her because her brothers are blaming the WiFi for any internet issue they have.

I told her they need to check their cables since they looked quite dodgy when I installed the router.

Today they discovered they have a termite infestation. Her father is losing his shit with her and wants her to remove the router because he is adamant that the WiFi attracted the termites and they would not have an infestation without it.

FML... I just can't.... any fucking issue in that house is going to be blamed on the WiFi router as long as it exists.

About slightly more than a year ago I started volunteering at the local general students committee. They desperately searched for someone playing the role of both political head of division as well as the system administrator, for around half a year before I took the job.

When I started the data center was mostly abandoned with most of the computational power and resources just laying around unused. They already ran some kvm-hosts with around 6 virtual machines, including a cloud service, internally used shared storage, a user directory and also 10 workstations and a WiFi-Network. Everything except one virtual machine ran on GNU/Linux-systems and was built on open source technology. The administration was done through shared passwords, bash-scripts and instructions in an extensive MediaWiki instance.

My introduction into this whole eco-system was basically this:
"Ever did something with linux before? Here you have the logins - have fun. Oh, and please don't break stuff. Thank you!"

Since I had only managed a small personal server before and learned stuff about networking, it-sec and administration only from courses in university I quickly shaped a small team eager to build great things which would bring in the knowledge necessary to create something awesome. We had a lot of fun diving into modern technologies, discussing the future of this infrastructure and simply try out and fail hard while implementing those ideas.

Today, a year and a half later, we look at around 40 virtual machines spiced with a lot of magic. We host several internal and external services like cloud, chat, ticket-system, websites, blog, notepad, DNS, DHCP, VPN, firewall, confluence, freifunk (free network mesh), ubuntu mirror etc. Everything is managed through a central puppet-configuration infrastructure. Changes in configuration are deployed in minutes across all servers. We utilize docker for application deployment and gitlab for code management. We provide incremental, distributed backups, a central database and a distributed network across the campus. We created a desktop workstation environment based on Ubuntu Server for deployment on bare-metal machines through the foreman project. Almost everything free and open source.

The whole system now is easily configurable, allows updating, maintenance and deployment of old and new services. We reached our main goal for this year which was the creation of a documented environment which is maintainable by one administrator.

Although we did this in our free-time without any payment it was a great year with a lot of experience which pays off now.

Samsung Smart TV becomes Samsung Dumb TV.

Welcome back dear readers, to the next installment of my Raspberry Pi / Pi Hole / MitM box adventure!

For those of you who are new to this story, I'm a long experience programmer who knows very little about his home network or networking in general and has constantly been going over his 250GB data plan because 'rona, and thus, wants answers to "where is the data going".

So, I got the Pi, codenamed Mini-Beowolf, positioned between the modem and router... worked some fuckin systemd.networkd magic (which was sort of easy... but was hard cause I'm new to it) and viola, this son of a bitch passes through the ethernet and doesn't even show up on the router. Fu-King Beastly, I love it.

Now to static IP all my devices so I fire up my trusty TP-Link admin portal. I should add here... I've visited this admin about a total of 10 minutes prior to this when I set this wifi router up and just let it do DHCP.

So I'm getting to know my admin portal... I've got most of my devices connected to reserved IPs... and I find this one fuckin device reporting as "localhost".

Now, I've got a MAMP install... but it hasn't been running. But still I thought for sure it was just MAMP run a bit amok.

But no... it was my fucking Samsung "Smart" TV. That piece of shit is, and apparently has been reporting its device name as, sure as shit, fucking "localhost"... PROBABLY FOR YEARS.

Now, IDK how that didn't cause me any major problems over the years, and I read quite a few forums about people who it did mess up their network. So I resolved to rename the Samsung TV device.

I found the spot in the network settings of the TV... I changed the name from the pick list of rooms in a house like "Living Room" and "Bed Room", then I tried entering my own device name. But no matter what I picked, or no matter how many times I restarted/reset that TV the network name is ALWAYS "localhost".

Even though somehow my network survived this long... I'm not standing for that shit.

My Samsung TV is now blocked COMPLETELY at the router level. (After I ran one last factory reset and update)

The kicker? That Pi I built has a Samsung SSD... so I'm blocking Samsung WITH FUCKING SAMSUNG.

Needless to say, these are likely among my last Samsung purchases.

Join me next time when I FINALLY try to turn Pi Hole on and then get a tcpdump (or some other lesser output from the tcp stream) going.

Ok, first rant, about my struggles getting reliable internet over the past 6 years. It's not too interesting of a topic, but here we go:

I'm living in a more rural part of Germany and internet here is shit. I pay more than 50 bucks a month for 700kb/s downstream (let's just not talk about upstream...), which is meh by itself but it gets worse. Before this I had roughly 230kb/s downstream using DSL. My provider came out with a new oh-so-fucking-fancy solution for giving people faster internet without upgrading their lame ass fucking backbone and POS infrastructure from 70 years ago: they sell you hybrid internet which combines your shit DSL and an LTE connection using TCP Multicast. Not only do I get only 6 of my promised (and payed for) 50 Mbit, no, It's also a fucking piece of nonworking shit!!!

Let me illustrate:
You constantly have problems with web content (or any remote content) not loading because the host server does not support TCP Multicast. It either refuses connection altogether or it takes about 30-50 seconds to establish a connection. Think about your live when it takes two or three fucking minutes to load 5 YouTube thumbnails or load new tweets at the bottom of the Twitter page! Also, you never know if you a) have an error in your implementation of a new API or if b) the remote host doesn't support TCPMC (there's never an error for that! Fuck you!), your SSH sessions ALWAYS drop in the most inopportune fucking moments because the LTE thing lost connection, you always have to turn on a VPN if you want to visit specific websites (for example your school's website) and so on....

Oh and also, my provider started throttling specific services again these days with Netflix and YouTube struggling to display 240p, fucking 240p video without buffering when I get 600kbit down on steam (ofc the steam download is paused when watching videos). When using a VPN, YouTube 720p and Netflix HD work like a charm again. Fucking Telekom bastards

Then there is the problem with VPNs. The good thing about them is that they solve all the TCP Multicast problems. Yay. Now for the bad things:
First of all, as soon as I use a VPN, access times to remote go up by like fucking 500%. A fucking DNS lookup takes 8-15 seconds!!! The bandwidth is there but it takes forever.. because reasons I guess. Then the speed drops to DSL speeds after a while because the router turns off my LTE connection when it is unused and it does not detect VPN traffic as traffic (again because... Reasons?) And also, the VPN just dies after an hour and you have to manually reconnect (with every VPN provider so far)

And as if that wasn't enough, now the lan is dying on me, too, with the router (the fucking expensive hybrid piece of shit, 230 bucks..) not providing DHCP service anymore or completely refusing all wifi connections or randomly dropping 5Ghz devices, or.....

You get the point.

The worst thing is, they recently layed down 400mbit fiber in my neighborhood. Guess where the FUCKING PIECE OF SHIT CABLE ENDS??? YEAH, RIGHT IN FRONT OF MY NEIGHBORS HOUSE. STREET NUMBER 19 IS SERVED WITH 400MBIT AND MY HOME, THE 20, IS NOT IN THEIR FUCKING SERVICE REGION. Even though there is a fucking cable with the cable companies name on it on my property, even leading up to my house! They still refuse to acknowledge it! FUCK YOU!!!!

Well anyways thanks for reading. Any of you got the same problems? :/

Will these fucktards just FUCKING FIX EDUROAM! alright it's a WiFi network that works across the globe and there's challenges with that BUT DON'T MAKE ME HAVE TO MANUALLY RECONNECT EVERY random amount of time!!! I'll shove that fucking MSCHAPv2 down you fucking throats with that sweet sweets PEAP sauce bloody arseholes.
What do you fucking mean it works fine? NO IT BLOODY DOESN'T! Get your shit together and at least handle DHCP leases correctly and make them not expire every fucking minute!!

Also, how the flipping fuck does connecting to the eduroam VPN from within fucking eduroam make it more stable? Only ever so slightly though. Incompetent pieces of dick sucking craptards don't make me have to bring out the ethernet jack EVERY FUCKING TIME at school for christ's sake.
No, it doesn't make it my problem because I'm running Linux. Look on the Internet. The forums are fucking filled with people having issues and your docs are from 5 years ago so please kindly FUCK Off!!!

Took the day and rebuilt my home network with no major issues along the way.

Migrated to a new NAS and gave a Raspberry Pi a new life as a PiHole + DHCP.

Rant: Why can't things always go this smoothly on my projects? 😎

!rant seems that my raspberry pi serial idea is a little bit complex at the moment and may take a more serious turn later, but I have studied and found DOS based TCP/IP software that will allow me to use my 5150 with actual Ethernet. There are a few 8bit ISA Ethernet cards that will work in the 5150 and separate executables that will configure DHCP, DNS, and even allow me to use a terminal emulator and SSH to connect to *nix based computers over lan! I'll keep you all posted!

Q.13 - Which one of the following is used in DHCP process ?
A. Boot, Test, Load, Start
B. Discover, Host, Configure, Process
C. Discover, Offer, Request, Acknowledge
D. Syn, Syn/Ack, Ack
E. I'm the DHCP server now.

Who thought that "IP" was a good replacement for ifconfig... I don't care how great it is, you can't Google for "release DHCP IP" and get instructions like you could for "release DHCP ifconfig"

So, I move house with my amazing, already configured and stable router with built in VPN, DDNS, Port forwarding and DHCP addresses.

Received ISP shitty router at new address and want to use as modem only, so I go read the manual.

"Bridge mode requires you to configure your other router with PPPoE and the ISP's credentials"

Landline is not working, so I cannot call the number to retrieve my password. After 2 days of waiting, engineer visits, installs master socket, dial tone yaaay.

Call number to get password, automated voice message has such a bad sound quality that I cannot figure out if it's saying F or S, and there are two of those letters.

Put ISP router in bridge mode, set other router to PPPoE and put credentials, nothing. Try with F and F, S and F, F and S, S and S... Nothing. Put it back to dynamic IP address, it works.

I resign myself and manually configure everything I had on the good router to the ISP one. A few issues with my server and DDNS, but hey, internet works.

Start missing the other functionality, try the password idiocy again. Nothing.

Next day, go to work, talk to a colleague that lives close and has the same provider: "I just put it into bridge mode and it worked".

Go back home, bridge mode on ISP router, Dynamic IP on good router, no credentials. It works.

Why do I always overcomplicate stuff?

Gotta love the IoT.

They set up a new surveillance camera in the company, that can stream live footage over the network and that little shit picked the IP adress of a coworker one day AFTER being set up.
Hurray for static routing. Hurray to the person who didn't disable DHCP on the router (Should probably configure my PC to use a static IP as well lel)

Anyways, this happened outta nowhere when I, the only guy who knows shit about IT and is usually present at yhe office, wasn't there and could not connect remotely.

The other, remote programmer, who set up the network, could guide the coworker to get a new IP but, he was worried that we got ourselves an intruder.

Since nobody told me yet that we (should) have static routing, I thought there was a mastermind at work who could get into a network without a wifi-access point and spoof the coworker in order to access the some documents.

The adrenaline rush was real 😨

Scanning the network with nmap solved the mystery rather quickly but thought me that I need to set up a secure way to get remote access on the network.

I would appreciate some input on the set up I thought of:
A raspberry Pi connected to a vpn that runs ssh with pw auth disabled and the ssh port moved.
Would set up the vpn in a similar fashion.

I broke the interwebs XD XD XD
nepripojené - disconnected

The DHCP does not see my computer, my computer says it is disconnected and I am still able to browse the internet perfectly fine :D

I'll post a rant (will be long) soon-ish on the root of the asinine problem...

TL;DR
Anyone got a better suggestion of killing a WLAN router signal than a Faraday Cage?
-----------------------
As to the point as I can manage atm...
My ISP forces a proprietary router/modem for them to script my static IPv4 block (/28, aka 13 usable). Modifying this equipment in any way or using the vast majority of tactics to modify its behaviour = Federal Felony... with my history, it couldn't be construed as mistake/ignorance of this fact, so I'd likely end up working for some branch of the gov to mitigate the costs of standard prison (on both ends... handicapped af = expensive af to comply with base human rights laws... plus I'd be a dangerous prisoner from what I've been told).

I NEED the ipv6 functionality TOTALLY off... I've written this into every kernel and every container config at kernel level.

The issue is, I don't trust their shit device (which "should" also be set to no ipv6 via gui... non-GUI = fed felony).

This horrid device, they apparently made them for home use initially (to be fair it has decent specs and tolerable RAM), so included WiFi... that comes on by itself.
Disable the WiFi!... except I cant (at least not without 'tampering').
Why? Well acc to the GUI it's not enabled in the first place. Acc to the 'tech support' it's apparently a paid feature (yes, nonsense) that I have not paid for (nor would I), meaning on their end's GUI and DBs I also don't have WiFi ability from that dev.

So... Not trusting the other settings and the dev, being something im not allowed to directly config outside of their GUI that doesn't realise it's putting out a usable signal despite registering DHCP on behalf of that non-existent signal. I NEED to kill those signals.

I realise it likely sounds extreme to make and use a Faraday Cage for a router/modem (secondary modem, it parses the initial modem's output, via script, to allow the static block to be accessed). I really dont know any other way that's legal to restrict it.

Oh, in case unclear, I have tried so many ways to get them to just allow me to use any device (pref. mine, but even their's) that i can simply script myself... it's a no-go.

So I have a job at a client to fix their system because the last systemadmin fucked everything up. One of the things I need to do is let the boss work from home.

No problem. I set up a vpn connection to work and everything just works. Except that the home network had the same dhcp range so that had to change.

I login on the router and literally everything is fucking locked. I call them and they send me a new router same fucking problem. So we bought an asus router so I finally can fix it.

QUESS WHAT THE FUCKING GARBAGE DOESNT EVEN HAVE BRIDGE MODE. FUCK KPN AND THEIR MODEMS.

Some <super smart> person ran DHCP in production lab (without disconnecting from main network and/or using firewall)
, now the admin turned all the ports off and went home.
Traffic gens are also unavailable now so are upgrade servers.
Result: I can't run my work over the weekend and the reports are expected on Monday.

Not so bad : I'll run on Monday.
Bad part : This fucking shit takes 2 days to do everything on the rack.

This is all the DHCP settings I get on this shitty router I got from my ISP. The other settings are more the less the same, which is trash. Don't even get me started on the interface.

The thing doesn't even support *WRT firmwares because it has a Realtek CPU.

Thanks. Guess I'll have to buy a new router now...

Trying to setup a ltsp server for fun. Neve done server things before.

The server and the thin client are in VMs. So I start, install openssh, and them when I try to ssh... WHY CAN’T I FUCKING CONNECT, I CHECKED THE IP WITH IFCONFIG, oh shit, forgot to configure the vm network... so ssh works! Then I setup dhcp (I really don’t know what I’m doing, just following the tutorial), the ltsp configs thing, build the client image and then, I HAVE NO FUCKING INTERNET CONNECTION. Continues, boot up the thin client... WHY CAN’T YPU FUCKING FIND THE SERVER!! Then I realise the vm is not an ubuntu one, so delete it and make a new one... WHY DOES IT STILL DOESN’T WORK!!!!!! Oh wait forgot to connect to the network! Goes to put the network adaptor, and: wait! I don’t need NAT! So I replace the NAT by the correct network, and: Wait it lets me choose the weird thingy intel/pce thingy, oh I remember now! It said we needed the “...III FAST...”! Activate it and... IT WORKS ! !!!! CONNECTS TO THE SERVER!!! GOT THE DHCP!!! WAIT!!!!! What is THAT 🤬 TFTP LOADING THING!!!:

TFTP open timeout

🤬 YOU!!!!!!!!>>

why the fuck does my dhcp client die every time the router sends back the dhcp info???

I fucking hate having to use Windows 2008 R2 Server.
We have a college project and the deadline is near. Fml. I did the ftp server, the ad dc, dns server, and when I am about to configure the dhcp server Windows fucking fucks everything up. Urrghhh...
I will never ever touch any windows server os in my life again. It is just a pain in the ass...

To the sysadmins:
We are currently installing and configuring dns, dhcp, smb, ftp and webserver on Ubuntu vms in class.
The teacher changed his mind and want us to install a system that has everything installed and configured.
He recommended Zentyal to us.
What would you use and why would you use it?

tldr; Fuck Windows networks

I do some first level support for a befriended architect when i got some sparetime after regular work. Its nice and easy extra cash most of the times but not today.

We decided to ditch the money thiving IT admin that did not care about doing his work. And instead of taking over his pile of shit i adviced to redo the whole network, drop the massive server that did idle 99% of the day and update all PCs some of them did still run IE8 and had no active anti virus, yeah that dude was real shit.

Anyways i proceded with the whole process today and everything worked expect the fucking windows network, that fucking domain controller setup blocked the fucking internetconnection even though DNS and DHCP where set up correctly. Why does fucking ms need to make it so difficult to set up fucking network accounts....

I will have to finish this shit up tomorrow and this on a weekend...

I have just slept for a minimum of 5 hours. It is 7:47 PM atm.
Why?
We have had a damn stressful day today.
We have had a programming test, but it really was rather an exam.
Normally, you get 30 minutes for a test and 45 minutes for an exam.

In this "test" we have had to explain what 'extends' does and name a few advantages of why one should use it.
Check.
Read 3 separate texts and write the program code on paper. It was about 1 super class and 1 sub class with a test class in Java.
Check.
Task 3: Create the UML diagram of the code from above. *internally: From above? He probably means my code since there is no other code there. *Checks time*. I have about 3 minutes left. Fuck my life.*
Draws the boxes. Put the class names in each of them. A private attribute for the super class.
Teacher: Last minute!
Draw the arrow starting starting from the sub class to the super class.
Put my name on each written paper. And mentally done for the day. Couldn't finish the last task. Task 3.
During this "test", I heard the frustrations of my classmates. Seemed like everyone was pretty much pissed.
After a short discussion with the teacher who also happens to be the physics professor of a university nearby.
[If you are reading this, I hope that something bad happens to you]
The next course was about computer systems. Remember my recent rant about DNS, dhcp, ftp, web server and samba on ubuntu?
We have had the task to do the screenshots of the consoles where you proof that you have dhcp activated on win7 machine etc. Seemed ok to me. I would have been done in 10 minutes, if I would be doing this relaxed. Now the teacher tells us to change the domain names to <surnameOfEachStudent>.edu.
I was like: That's fine.
Create a new user for the samba server. Read and write directories. Change the config.
Me: That should be easy.
Create new DNS entries in the configs.
Change the IPv6 address area to 192.168.x.100-200/24 only for the dhcp server.
Change the web server's default page. Write your own text into it.
You will have 1 hour and 30 minutes of time for it.
Dumbo -ANGRY-CLIENT-: Aye. Let us first start screenshotting the default page. Oh, it says that we should access it with the domain name. I don't have that much time. Let us be creative and fake it, legally.
Changes the title element so that it looks like it has been accessed via domain name. Deletes the url and writes the domain name without pressing Enter. Screenshot. Done. Ok, let us move to the next target.
Dhcp: Change lease time. Change IP address area. Subnet mask. Router. DNS. Broadcast. Optional domain name. Save.
Switches to win7.
ipconfig /release
ipconfig /renew
Holy shit it does not work!
After changing the configs on ubuntu for a legit 30 minutes: Maybe I should change the ip of the ubuntu virtual machine itself. *me asking my old self: why did not you do that in the first place, ass hole?!*
Same previous commands on win7 console. Does not work. Hmmm...
Where could be the problem?
Check the IP of the ubuntu server once again. Fml. Ubuntu did not save when I clicked on the save button the first time I have changed it. Click on save button 10 times to make sure it really is saved now lol.
Same old procedure on win7.
Alright. Dhcp works. Screenshot.
Checks time. 40 minutes left.
DNS:It is your turn. Checks bind9 configs. sudo nano db.reverse.edu.
sudo nano db.<mysurname>.edu.
Alright. All set. It should work now.
Ping win7 from ubuntu and vice versa. Works. Ping domain name on windows 7 vm. Does not work.
Oh, I forgot to restart the bind9 server on ubuntu.
sudo service bind stop
" " " start
Check DNS server IP on win7. It looks fine.
It still doesn't work. Fuck it. I have only 20 minutes left. Samba. Let us do this!
10 minutes in. No result. I don't remember why. I already forgot why I have done for it. It was a very stressful day.
Let us try DNS again.
Oh shit. I forgot the resolver!
sudo nano /etc/resolv.conf
The previous edits are gone. Dumb me. It says it in the comments. Why did not I care about it. Fuck it.6 minutes left. Open a yt video real quick. Changes the config file. Saves it. Restarts DNS and dhcp. Closes the terminal and opens a new one. The changes do not affect them until you reopen them. That's why.
Change to win7.
Ping works. How about nsloopup.
Does not work.
Teacher: 2 minutes left!
Fuck it.
Saves the word document with the images in it. Export as pdf. Tries to access the directories of the school samba server. Does not work. It was not my fault tho. Our school server is in general very slow. It feels like they are not maintained and left alone like this in the dust from the 90s.
Friend gets the permission to put his document on a USB and give the USB to the teacher.
Sneaky me: Hey xyz, can you give me your USB real quick?
Him: sure.
Gets bombed with "do you want to format the USB?" pop-ups 10 times. Fml. Skips in a fast way.
Transfers the pdf. Plug it out. Give it back.
After this we have had to give a presentation in politics. I am done.

So I reinstalled Ubuntu server and set the ip to 204, but I forgot that I assigned a static ip to it in my dhcp. I guess it has two IPv4 addresses now? How? Only one NIC 🤔

This Cisco router must be incinerated. Hangs everyday. DHCP server stops giving IPs. WiFi signal range is almost nonexistent.

A DHCP packet walks into a bar and asks for a beer. Bartender says, "here, but I’ll need that back in an hour!"

The DHCP server is off.

The school lied, Wi-Fi doesn’t work.

THIS IS RIDICULOUS WHAT A SHITSHOW

I understand the good intentions behind a client wanting to be helpful, but...

GET THE FUCK OUT OF MY WAY.

I think I finally, really, comprehend why secret societies have historically been created... I mean the potentially logical ones. This train of thought is logically terrifying.

I want a logic check.

I've been jokingly mentioning some of my totally true, practically useless in most scenarios, skills/specific fields of knowledge/ability under a moniker of 'extremely useful, assuming apocalyptic event' for years. Things like advanced knowledge of Coefficients of glass expansion, Fortran, various things that have caused friends to refer to me as MacGyver after the reboot came out.

In recent years, I've personally encountered several varieties of the ones defined by helplessness, self-victimisation, some version of a real disability... that theyve expounded into a personified personal nemesis-- to flashily battle yet never overcome, etc... the vast majority perplexing me as to why that's a valid form of life to them... it's not that they never consider some other way; the ball is just quickly dropped and never picked back up.

College?(not that I'm a big fan) they wish they could but so expensive... aide? The form was hard/confusing/past-due...

Lookup/learn something more indepth than a tiktok? *some self-deprecating bs*

Yet it's "I always wanted to do/be/learn X"

Shows like 'How It's Made' fascinate, but don't inspire enough for a 5min google query.

In the dev world its a clear, inverted pyramid-- one of the first posts I saw when I rejoined here was ostream's rant on Apple sucking because after they stop support/updates you "can't" load a different OS... ofc you can. But several comments down... no mention of that... i think it was @LensFlare who was the only one in ~15 respondents to point out the core logical fallacy.

Basic shit is totally forgotten... try asking some random adults what plastic is made from... or pay attention to how many people declare they have a gluten "allergy".

I get people frequently telling me that things im pointing out as differences don't matter because "it's just semantics"... semantics is literally the epitome of "significance", with roots in 'meaning' and 'truth'

Back to the main issue... We are in a world where DIY is typically something you pay more to do as a catered experience than actually learning anything, people destroy their own arguments hopes of validity unwittingly often by stating the arguement, get 'offended' or 'triggered' by factual statements, propagate misinformation and bastardise words until MW needs money enough to print a new version, likely adding the misuse as an actual definition and basic knowledge and the thought to actually learn is vetoed by the existence of google translate, the wisdom of tiktok and the pure brillance of troubleshooting every random linux issue you have from not knowing basic CLI and thinking linux makes you cool, with chmod 777 because so many other dumbasses on forums keep propagating misinformation. Ask them what 777 means, most have no clue... as they didnt consider googling that one before putting it in a terminal several times.
The number of humans that actually know the basic shit that the infrastructure of the world is built on keeps decreasing... and we aren't even keeping a running tally.

The structure of the internet has the right idea... dns- 13 active master root servers, with multiple redundancies if they start dropping... hell ICANN is like a secret society but publicly known/obfuscated... the modern internet hasnt had a global meltdown... aside from the lack of censorship and global availability changing the social definition of a valid use of braincells to essentially propagating spam as if it's factual and educational.

So many 'devs' so few understanding what a driver is, much less how to write one... irl network techs that don't know what dhcp is or that their equiptment has logs... professionals in deducated fields like Autism research/coping... no clue why it was called "autism", obesity and malnutrition simultaneously existing in the same humans... it's like we need to prepare a subterranean life-supporting vault and stock it like Noah's ark... just including the basic knowledge of things that used to be common/obvious. I've literally had 2 different, early 20s, female, certified medical assistants taking my medical history legitimately ask if not having a uterus made it harder to get pregnant...i wish i was joking.

Any ideas better than a subterranean human vault system? It's not like we can simply store detailed explanations, guides, media... unless we find a way to make them into obfuscated tiktok videos apparently on nonsense or makeup tutorials.

One of my favorite parts of my job is that I’m not allowed to resolve firewall issues myself. IT ops frequently breaks my firewall config, preventing me from resolving any domain names or running dns queries in general even though I still have connectivity. So I call the support number. Remote Desktop icon appears in the corner of my screen.

“Hi I have connectivity but can’t resolve any domain names”
“Have you tried using your browser, maybe they just block pings”
“Well no because I can ping 8.8.8.8, see?”
“Hmm well have you tried from your browser?”
“Yes.”
“Maybe it’s just an issue with ping traffic”
“Well no because I’m not having issues with icmp traffic. I can still ping 8.8.8.8, see?”
“Hmm that’s weird”
*opens network config, renews dhcp lease*
“But I don’t think that’s relat...”
“I know!”
*opens my command prompt, flushes dns cache*
“But if this were a cache issue the requests wouldn’t take so long to tim...”
“I know.”
(Starting to think he doesn’t know)
“I’ll pass this on to the networking guys”
“Thanks”

Third time this has happened. Every time they claim they didn’t change anything and it fixed itself. Obviously this is not the case, because after networking guys “don’t change anything” it starts working again. Every time they talk to me like I have the technical prowess of an HR rep. Like somehow I’m the only software engineer in the world that doesn’t know what the ping command does.

I’m not upset though. They’re just giving me a great excuse to be completely unproductive on a Monday

We had a course spanning a week about SIP/Asterix. I got an A+… not because I learned a lot about SIP, but I fixed the dhcp daemon on his server and he was happy with my work ¯\_(ツ)_/¯

He was an eccentric guy, had a passion for photography, so he had bought a top spec Mac Pro worth about $7000 just to edit his photos on

Not really a bug, but I have recently finished organising our Domain Controller.

It was a server set up about 8 year ago by someone with zero experience with server OS.

I had to completely re-work every single group, GPO, User Account, Login script, shared drives and DHCP.

I have now solved 90% of re-occurring problems with our network.

Now they want me to do the same with our Digital Storefront...

Fuck you Windows 10!
Trying to help a sales guy setup his adapter to work on a manual network setup (not DHCP). It shows familiar IPV4 settings and then I see this:
"IPV4 Subnet Prefix Length" I decided it was related to netmask "255.255.255.0" or whatever. Tried the number 3. Worked fine. Talked to a colleague and he said it should be the bits of the netmask. So 24.

So WHY THE FUCK does Windows 10 on an update change the way we setup manual networks that has been in use for 40 years?! I realize you can still do the netmask version via Control Panel. I get that. However, the last time I helped this sales person it asked for netmask using the exact method for setting up manual network setting. So why change this on an update?

I like Windows 10 mostly, but this kind of fuckery is stupid. Stop changing shit just to change shit!

An old sysadmin configured the idrac interface of a company VMware server to get the IP address trough DHCP. Of course, without a valid IP, the server doesn't start. For you, where was hosted the VM with the DHCP server?

A DHCP packet walks into a bar and asks for a beer. Bartender says, "here, but I’ll need that back in an hour!"

DHCP failed while installing Kali Linux. Any idea what to do next

I'm a student and we are forced to still have "ordinary" classes like Danish English and such. So we were having our English class. When out of nowhere our "skps" aka those who haven't found a company. That wanna take them in as a student but anyway they started looking around the class for turned on pcs. I asked my friend what the hell they were doing. Apparently a dhcp server from our class were hooked up to the schools lan and were faster. So it leased out ips with a lease time that was 8 days long. yeah they fail configured it, the SKP had pinged the server to find out it was called Pikachu. So the whole skp was on pokemon hunt til they found it at the table we all were sitting at "side note" it caused the whole lan network of our school not to be working"

I am working on an embedded system, a microcontroller-based design. The system has an Ethernet port. I am using NetX framework in the microcontroller firmware.
The DHCP Client is executed properly, an IP address is assigned correctly when connected to a router. I connect a laptop to the router using a LAN cable. Then TCP sockets behave the way they should, UDP broadcast behave the way they should. The only issue is, when I connect a Laptop over wireless to the same router UDP broadcast are received on application on Laptop, but data sent is not received on the embedded device.
Any idea why?

Platform:
Laptop is Windows
Embedded Device: Renesas S7G2, NetX framework.

shall we begin the terraform stories?

terraforming things is nice. the vcloud director provider of Terraform is also nice..ish.

for fucks sake, why do folks at VMware release a provider for use in fucking production, that only does support barely a third of all features, including the distributed logical router with all its funkyfuck features? nsx-t is nice, but did you folks remember all of those customers, who do run the old nsx-v?
you've decided that nsx-v shall be put to sleep. okay. fine. nice.
but don't you think, that the version 3.3.ass should support all major resources of your product, including old nsx-v features like the fucking DLR?!

sorry, but a product, that only supports ⅓ of all features, that can be managed in UI, only deserves a RC label at best. calling this a 3.3.ass is bold. you can't even setup a dhcp pool for a defined network. dafuq people..?! (╯°□°）╯︵ ┻━┻

I have been working on a long time, low progress project of mine that keeps on giving and giving.

Let's begin like two years ago where I dipped my toes into "more then gigabit" networking thanks to a Linus Techtips video about infiniband.
I had the dream of booting my Workstation from my NAS, a so called diskless setup.

Well, since I run FreeNAS on my Nas , a very nice Freebsd based Nas OS, everything's gonna be good.

In the beginning, there was no infiniband support.
Turns out, you don't need it, since the mellanox CX2 nics can do ETH too.
Yay.
Just took me a few weeks of anger.

So, to be able to boot something over the network, you need firmware that finds the bookable stuff and loads it.
That protocol and firmware is called PXE.
PXE needs a DHCP telling it what to do, and what is where and etc.

Freenas here I come! Installing dnsmasq on the actual freenas install turned out to be not that great of an idea because freenas thinks of itself as being an "appliance" that you don't fiddle with. So things work, until you update/ upgrade when everything will basically be wiped, except what you have done through the ui.
Ok. So I gona use a jail, a container like thing for that.
Everything is great, jail has internet, everything Installs fine, what could go wrong?
Dnsmasq can launch and work, but not as dhcp server. Some thing about permissions.
Turns out, jails have permission like things.
A few days of head scratching later, it has ALL the permissions.
Dnsmasq still can't work as DHCP server though, why you ask?
Because it needs a specific kernelmodule that isn't contained in the jail. Since jails are kind of like a docker container, they run on the same OS kernel, who does not have this module, I'd need to patch the freenas, which is an appliance, so fuck that.

Like a year later, freenas has finally added good VM support, so why not make a VM for the dhcpserver?

Well, about a year ago, I didn't know that the virtual Intel nic is a fucken unstable piece of garbage, crashing nearly any OS at some point.

So that was it for a while again.

Now to the last few weeks.
Finally dnsmasq is running in a freebsd VM with a good and working configuration which is rather simple, if those tutorial fuckers out there would explain shit instead of just telling you to copy, paste and replace X.

Now back to the PXE side.
I'm using iPXE because I have no clue how to boot anything over tftp so iSCSi it is, since that is what I can relate too.
The idea behind iscsi is to fake a SCSI disk over the network. Attached devices appear as if they are actually directly connected to the machine instead of over the network.

iPXE gets a lease from the server, can connect to it, everything is fucken great. Finally.
Except that if it "sanBoots" the iscsi drive, it can't find anything to boot.
Well fuck.
If I attach a Linux live USB over iscsi, it boots, finds grub, and crashes because the live iso isn't configured for network-boot.
But it boots.
So what's so different?

Well iPXE is booted in legacy mode, where as the content of the target is windows 10 in efi mode.
Ffff.

Ok. Can I get iPXE to boot in EFI mode?

Well yes, after like 3 days fiddling with it.
But it only finds the onboard Intel nic instead of the new Mellanox CX3 cards, and can't even connect to the target....

Sooo, I guess my options are as follows.
Either, get PXE efi to work on the network cards directly, its called flexboot and might be able to since I just found some firmware options for that.

Or give up on efi and install windows in legacy mode.
Which isn't that easy when it has to end up on a drive on my nas.