• cypherix93@lemmy.worldEnglish
      81·
      3 months ago

      I can’t be bothered to walk down to the basement, so practically my server is also only accessible by SSH

      • yhvr@lemm.ee
        9·
        3 months ago

        I’m at college right now, which is a 3 hour drive away from my home, where a server of mine is. I just have to ask my parents to turn it back on when the power goes out or it gets borked. I access it solely through RustDesk and Cloudflare Tunnels SSH (it’s actually pretty cool, they have a web interface for it).

        I have no car, so there’s really no way to access it in case something catastrophic happens. I have to rely on hopes, prayers, and the power of a probably outdated Pop!_OS install. Totally doesn’t stress me out I’ll just say I like to live on the edge :^)

        • Lucy :3@feddit.org
          6·
          3 months ago

          Currently the server(s) are in my room, which is so messy my dad probably wouldn’t even enter it voluntarily. And in the case grub/fstab/crypttab/etc. are messed up, which is probably the most common error, he probably couldn’t solve it by himself. Soon everything’s gonna live in its own little room in the basement, so it’s gonna be accessible easier actually.

  • xmunk@sh.itjust.works
    44·
    3 months ago

    Initializing VPC…

    Configuring VPC…

    Constructing VPC…

    Planning VPC…

    VPC Configuration…

    Step (31/12)…

    Spooling up VPC…

    VPC Configuration Finished…

    Beginning Declaration of VPC…

    Declaring Configuration of VPC…

    Submitting Paperwork for VPC Registration with IANA…

    Redefining Port 22 for official use as our private VPC…

    Recompiling OpenSSH to use Port 125…

    Resetting all open SSH connections…

    Your VPC declaration has been configured!

    Initializing Declared VPC…

    • naeap@sopuli.xyz
      13·
      3 months ago

      Never touch a running system
      Until you have a inviting hole in your system

      Nevertheless, I’m panicking every time I update my sever infrastructure…

  • nick
    41·
    3 months ago

    Just had to restart our main MySQL instance today. Had to do it at 6am since that’s the lowest traffic point, and boy howdy this resonates.

    2 solid minutes of the stack throwing 500 errors until the db was back up.

    • xmunk@sh.itjust.works
      18·
      3 months ago

      If you have the bandwidth… it is absolutely worth it to invest in a maintenance mode for your system, just check some flat file on disk for a flag before loading up a router or anything and then, if it’s engaged, just send back a static html file with ye olde “under construction” picture.

      • nick
        3·
        3 months ago

        That’s not really… possible at this point. We have thousands of customers (some very large ones, like A——n and G—-e and Wal___t) with tens or hundreds of millions of users, and even at lowest traffic periods do 60k+ queries per second.

        This is the same MySQL instance I wrote about a while ago that hit the 16TiB table size limit (due to ext4 file system limitations) and caused a massive outage; worst I’ve been involved in during my 26 year career.

        Every day I am shocked at our scale, considering my company is only like 90 engineers.

        • Buddahriffic@lemmy.world
          5·
          3 months ago

          Someone set up a script to automatically create daily backups to tape. Unfortunately, it’s still the first tape that was put in there 3.5 years ago, every backup since that one filled up failed. It might as well have failed silently because everyone who received the email with the error message filtered them to a folder they generally ignored.

        • msage@programming.dev
          3·
          3 months ago

          And no one ever tried to restore it.

          Happened to me as well, after a year I learned incremental DB backups were wrongly offset by GMT diff, so we were losing hours every time. Fun.

          Luckily we never needed them.

          And now we have Postgres with WAL archiving and I sleep so much better.

  • umbrella@lemmy.ml
    33·
    3 months ago

    this week i sudo shutdown now our main service right at the end of the workday because i tought it was a local terminal.

    not a bright move.

    • SavvyWolf@pawb.socialEnglish
      36·
      3 months ago

      There’s a package called molly-guard which will check to see if you are connected via ssh when you try to shut it down. If you are, it will ask you for the hostname of the system to make sure you’re shutting down the right one.

      Very usefull program to just throw onto servers.

    • mox@lemmy.sdf.org
      8·
      3 months ago

      Oops.

      Since you’re using sudo, I suggest setting different passwords on production, remote, and personal systems. That way, you’ll get a password error before a tired/distracted command executes in the wrong terminal.

      • umbrella@lemmy.ml
        16·
        3 months ago

        i have different passwords but i type them so naturally it didnt even register.

        “wrong password.”

        “oh, i’m on the server, here’s the right password:”

        “no wait”

    • naeap@sopuli.xyz
      7·
      3 months ago

      Happens to everyone

      Just having a multitude of terminals open with a mix of test environment and (just for comparison) an open connection to the production servers…

      We were at a fair/exhibition once and on the first day people working on an actual customer project asked us, if they could compare with our code.
      Obviously they flashed the wrong PLC and we were stuck dead at the first hours of the exhibition.
      I still think that this place was cursed, as we also had to do multiple re-soldering of some connections of our robot and the sherry on top was the system flash dying - where I had fucked up, because I just finished everything late at night and didn’t made a complete backup of everything.
      But it seems, if luck runs out, you lose on all fronts.

      At least I was able to restore everything in 20mins. Which must be some kind of record.
      But I was shaking so much from the stress, that I couldn’t efficiently type anymore and was lucky to have a colleague to just calmly enter what I told him to and with that we’re able to get the show case up and running again.

      Well, at least the beer afterwards tasted like the liquid of the gods

    • Trainguyrom@reddthat.comEnglish
      6·
      3 months ago

      I was making after hours config changes on a pair of mostly-but-not-entirely redundant Cisco L3 switches which basically controlled the entire network at that location. While updating the running configs I mixed up which ssh session was which switch and accidentally gave both switches the same IP address, and before I noticed the error I copied the running config to the startup config.

      Due to other limitations and the fact that these changes were to fix DNS issues (and therefore I couldn’t rely on DNS to save me) I ended up keeping sshing in by IP until I got the right switch and trying to make the change before my session died due to dropped packets from the mucked up network situation I had created. That easily added a couple of hours of cleanup to the maintainence I was doing

    • LiveLM@lemmy.zipEnglish
      6·
      3 months ago

      Best thing I did was change my shell prompt so I can easily tell when it isn’t my machine

  • Ignotum@lemmy.world
    24·
    3 months ago

    I have more than once typed shutdown instead of reboot when working on a remote machine… always fun

    • chatokun@lemmy.dbzer0.com
      7·
      3 months ago

      Networking, we had a remote office in Europe (I’m in the US) and wanted to reset a phone. Phone was on port 10 of the Cisco switch, port 1 went to the firewall (not my design, already in place).

      Helping my coworker, I tell her to shut port 10.

      Shut port 1, enter.

      Ok… office is offline and on another continent…

    • umbrella@lemmy.ml
      4·
      3 months ago

      i have the horrible habit of using shutdown now because of my personal computers. a lot more fun.

    • sik0fewl@lemmy.ca
      2·
      3 months ago

      Not sure if this will help you, but I always do shutdown and then think about whether I want to do -r or -h. I’m sure it won’t help 🙂

  • NastyNative@mander.xyzEnglish
    201·
    3 months ago

    Tbh there is nothing more taxing on my mental health than doing maintenance on our production servers.

  • WagnasT@lemmy.world
    16·
    3 months ago

    when it was the wrong server and you’re hoping it comes back up before 5 minutes and nagios starts sending alerts

  • pedz@lemmy.ca
    9·
    3 months ago

    I work with IBM i/AS400 servers and those are not exactly the quickest thing to “reboot” (technically an IPL). Especially the old ones. I have access to the HMC/console but even this sometimes takes several minutes (if not dozens) just to show what’s going on.

    It’s always a bit stressful to see the codes passing one after the other and then it stops on one and seems to get stuck there for a while before continuing the IPL process. Maybe it’s applying PTFs (updates) or something, and you just have to wait while even the console is blank.

    I’ve been monitoring those servers for years and I’m still sometimes wondering if it hanged during the IPL or if it’s just doing its thing, because this part, even with codes, is not very verbose.

    Fortunately it’s also very stable so it pretty much always comes back a few minutes after you start wondering why the hell it’s taking so long.

  • PenisDuckCuck9001@lemmynsfw.com
    5·
    3 months ago

    That’s why you connect an arduino to the motherboards reset pin and load it with a program where it resets the system if it doesn’t receive an ACK signal over the usb connection every 10 minutes.

    Eventually though the networking and apache stops working after around 150 days so you also have to make a script that resets the system after 30 minutes of not having network.