My first job: The Mystery of The Powered-Down Server

I paid my way through college by working every-other-semester in the Cooperative-Education Program my school provided. My first job was with a small company (now defunct) which made some of the very first optical-storage robotic storage systems. I honestly forgot what I was "officially" hired for at first, but I quickly moved up into the kernel device-driver team and was quite happy there.

It was primarily a Solaris shop, with a smattering of IBM AIX RS/6000. It was one of these ill-fated RS/6000 machines which (by no fault of its own) plays a major role in this story.

One day, I came to work to find my team-leader in quite a tizzy -- cursing and ranting about our VAR selling us bad equipment; about how IBM just doesn't make good hardware like they did in the good old days; about how back when _he_ was in charge of buying equipment this wouldn't happen, and on and on and on.

Our primary AIX dev server was powered off when he arrived. He booted it up, checked logs and was running self-diagnostics, but absolutely nothing so far indicated why the machine had shut down. We blew a couple of hours trying to figure out what happened, to no avail. Eventually, with other deadlines looming, we just chalked it up be something we'll look into more later.

Several days went by, with the usual day-to-day comings and goings; no surprises.

Then, next week, it happened again.

My team-leader was LIVID. The same server was hard-down again when he came in; no explanation. He opened a ticket with IBM and put in a call to our VAR rep, demanding answers -- how could they sell us bad equipment -- why isn't there any indication of what's failing -- someone must come out here and fix this NOW, and on and on and on.

(As a quick aside, in case it's not clearly coming through between-the-lines, our team leader was always a little bit "over to top" for me. He was the kind of person who "got things done," and as long as you stayed on his good side, you could just watch the fireworks most days - but it became pretty exhausting sometimes).

Back our story -
An IBM CE comes out and does a full on-site hardware diagnostic -- tears the whole server down, runs through everything one part a time. Absolutely. Nothing. Wrong.

I recall, at some point of all this, making the comment "It's almost like someone just pulls the plug on it -- like the power just, poof, goes away."

My team-leader demands the CE replace the power supply, even though it appeared to be operating normally. He does, at our cost, of course.

Another weeks goes by and all is forgotten in the swamp of work we have to do.

Until one day, the next week... Yes, you guessed it... It happens again. The server is down. Heads are exploding (will at least one head we all know by now). With all the screaming going on, the entire office staff should have comped some Advil.

My team-leader demands the facilities team do a full diagnostic on the UPS system and assure we aren't getting drop-outs on the power system. They do the diagnostic. They also review the logs for the power/load distribution to the entire lab and office spaces. Nothing is amiss.

This would also be a good time draw the picture of where this server is -- this particular server is not in the actual server room, it's out in the office area. That's on purpose, since it is connected to a demo robotics cabinet we use for testing and POC work. And customer demos. This will date me, but these were the days when robotic storage was new and VERY exciting to watch...

So, this is basically a couple of big boxes out on the office floor, with power cables running into a special power-drop near the middle of the room. That information might seem superfluous now, but will come into play shortly in our story.

So, we still have no answer to what's causing the server problems, but we all have work to do, so we keep plugging away, hoping for the best.

The team leader is insisting the VAR swap in a new server.

One night, we (the device-driver team) are working late, burning the midnight oil, right there in the office, and we bear witness to something I will never forget.

The cleaning staff came in.

Anxious for a brief distraction from our marathon of debugging, we stopped to watch them set up and start cleaning the office for a bit.

Then, friends, I Am Not Making This Up(tm)... I watched one of the cleaning staff walk right over to that beautiful RS/6000 dev server, dwarfed in shadow beside that huge robotic disc enclosure... and yank the server power cable right out of the dedicated power drop. And plug in their vacuum cleaner. And vacuum the floor.

We each looked at one-another, slowly, in bewilderment... and then went home, after a brief discussion on the way out the door.

You see, our team-leader wasn't with us that night; so before we left, we all agreed to come in late the next day. Very late indeed.

My first contact with a computer was in 1997, I was close to 9.
My parents bought it together with a 17" screen and a color inkjet for about 6000.- CHF if I remember it correctly.
It had Windoozle 95, Pentium 2 233MHz, Radeon Rage 128 something.
At first I was not allowed to use it, but after watching them write documents for some time, they allowed me to draw random stuff in MS Paint and use Word.

It did't take long until I figured out to do more stuff on the system.
I think I crashed Windows a few times by installing some random demo software or shareware and execute just anything to see what happens.

When I turned 10, my godmother gave me Age Of Empires 2 as a present (I wished it so badly) and since this gift, I was somewhat addicted with computers and gaming.

My mother forbid me a lot of times to use the computer for weeks. 😄

But it all made me know computers better and even start programming with Quick Basic! (later VB, C++ and C#)

Anyone draw out the logic of a process by hand before coding much?

I've been doing that more and more, and it's handy but ... it's also kinda tedious making them on paper or even just in the VS Code extensions I've tried.

I'd really like a way to bust out quick flow charts in VSCode and there's a Draw.io add on and it's ok but lotta fidgeting with flow chats and dragging stuff.

It doesn't have to be pretty and it doesn't have to be super feature rich.... just want to quick bust out a series of steps flow chart style or ... hell any way fast and visual like.

Anyone use anything they really like?

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.

I am not a programmer, but I know a little bit of Python, C# and C++, but mostly basic syntax of latest two. Nevertheless it gives me higher ground, why?

I develop way od thinking which maker my life easier. I Havel intershop in Pharmacy and they print small papers with number which you show to get remaining drugs. Currently is number, 17592 which makes someone to type almost 40k numbers and erase also this amount. I use variable function in Libreoffice Writer and you have to type one number and it autonumber 64 (easily to expand but unnecessary) and save fucktone of time 😃 And this is why I thing that teaching programming is beneficial, because it develops mindset of resolving problems in easier way.

On the other hand in a few hours I wrote program for my girlfriend to draw randomly picture of herbal material (leaf, root, fruit etc) and ask for Latin name of this material, check if is correct and display necessary information. Programming was quick, most of time I prepare data for this software and this feels so fuxkibg awesome that I could use my knowledge to help my girlfriend and make something useful which makes me proud (code looks like blue waffle, but it works 😃). Fucking deadlines, but at least I could finish it 😃

Why NOT much Solidity Blockchain Jobs out there?

Just a quick question , I see a lot of people claiming to teach blockchain development by teaching solidity , React and making full stack Dapps with web3. ( thats it ) Now there are other articles and stuff that you python and node.js as well to teach blockchain. But for now I am calling out the major tutorials/yTube channels etc. [ wont be taking names , am sorry ]

But when you go out in the job market. there is simply NOT enough jobs under this area.

yes there are jobs of blockchain dev, but then they have a huge part of them including Python/node.js/java.

So what should I draw out a conclusion , u simply cannot be a blockchain developer without being a full stack MERN/Python-React/Java-React. developer