Shakedown Social

12 posts12 participants1 post today

Jan SchaumannSystem AdministrationThis marks the end of the semester - if you followed along over the last few months in this thread, then I hope you had some fun and perhaps learned something new. If you want to revisit any of the topics, here's the entire semester's playlist of videos:<a href="https://youtube.com/playlist?list=PLDadzdouM0VBq9HdgalQkqFKvM7uSaj9L&si=Gm4MEWv0Cr5ZcvCq" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://youtube.com/playlist?list=PLDadzdouM0VBq9HdgalQkqFKvM7uSaj9L&si=Gm4MEWv0Cr5ZcvCq</a>But remember that some topics didn't have any videos but had a few useful links on the course website: <a href="https://stevens.netmeister.org/615/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://stevens.netmeister.org/615/</a>Thanks for sharing!<a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SysAdmin</a> <a href="https://mstdn.social/tags/SRE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SRE</a> <a href="https://mstdn.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DevOps</a>

Stefano MarinelliPeople working on Linux or the BSDs (or illumos based OSes, etc), are you using two monitors? And, if so, what do you use them for? I'm trying to understand if it makes sense to keep two monitors on my deskPlease boost<a href="https://mastodon.bsd.cafe/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://mastodon.bsd.cafe/tags/FreeBSD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FreeBSD</a> <a href="https://mastodon.bsd.cafe/tags/OpenBSD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenBSD</a> <a href="https://mastodon.bsd.cafe/tags/NetBSD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NetBSD</a> <a href="https://mastodon.bsd.cafe/tags/illumos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#illumos</a> <a href="https://mastodon.bsd.cafe/tags/SmartOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SmartOS</a> <a href="https://mastodon.bsd.cafe/tags/OmniOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OmniOS</a> <a href="https://mastodon.bsd.cafe/tags/IT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#IT</a> <a href="https://mastodon.bsd.cafe/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SysAdmin</a>

Jonathan MatthewsHere's a <a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://fosstodon.org/tags/networking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#networking</a> question for you: what's a lightweight way to allow an HTTP request to an arbitrary *user*-provided FQDN, but to prevent the connection being made if the FQDN maps to an RFC1918/private IP address?(The relevant command here is <a href="https://fosstodon.org/tags/curl" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#curl</a>, but I don't think that matters as it doesn't appear to have a flag to say "only connect if the IP is /not/ inside these subnets".) <a href="https://fosstodon.org/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://fosstodon.org/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#devops</a> <a href="https://fosstodon.org/tags/network" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#network</a> <a href="https://fosstodon.org/tags/hostnetworking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hostnetworking</a> <a href="https://fosstodon.org/tags/sre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sre</a> <a href="https://fosstodon.org/tags/systems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#systems</a> <a href="https://fosstodon.org/tags/platformengineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#platformengineering</a>

Peter N. M. HansteenRegister now for BSDCan <a href="https://www.bsdcan.org/2025/index.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.bsdcan.org/2025/index.html</a> and get the Saturday reception for free! (until 2025-05-19)Schedule <a href="https://indico.bsdcan.org/event/5/timetable/?layout=room#20250613.detailed" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://indico.bsdcan.org/event/5/timetable/?layout=room#20250613.detailed</a> <a href="https://mastodon.social/tags/bsdcan" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bsdcan</a> <a href="https://mastodon.social/tags/bsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bsd</a> <a href="https://mastodon.social/tags/unix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unix</a> <a href="https://mastodon.social/tags/unixlike" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unixlike</a> <a href="https://mastodon.social/tags/openbsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#openbsd</a> <a href="https://mastodon.social/tags/netbsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#netbsd</a> <a href="https://mastodon.social/tags/freebsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#freebsd</a> <a href="https://mastodon.social/tags/conference" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#conference</a> <a href="https://mastodon.social/tags/development" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#development</a> <a href="https://mastodon.social/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#devops</a> <a href="https://mastodon.social/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://mastodon.social/tags/libresoftware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#libresoftware</a> <a href="https://mastodon.social/tags/freesoftware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#freesoftware</a>

smiddi<a href="https://mastodon.social/@nixCraft" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@nixCraft</a>changed port to 22022, it's all good <a href="https://chaos.social/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#devops</a> <a href="https://chaos.social/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://chaos.social/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a>

nixCraft 🐧This is what real nightmares are made of: the error "ssh: connect to host ec2-bastion-host-your-public-ip port 22: Connection refused."<a href="https://mastodon.social/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#devops</a> <a href="https://mastodon.social/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://mastodon.social/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a>

Kevin Karhan :verified:<a href="https://functional.cafe/@ttuegel" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@ttuegel</a> I refuse to make estimates as a <a href="https://infosec.space/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> and <a href="https://infosec.space/tags/IT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#IT</a> professional before I have all the necessary facts on the table.<ul><li>I also explain to potential clients that I do this because I want to actually give them an accurate estimate and not end up with preventable cost overruns i.e. when a wall turns out to be massive steel-reinforced concrete and not acoustic-insulated drywall, because I've yet to see floorplans that actually and properly note these things down!</li></ul>

`Da ElfInteresting.Collabora CODE server won't install on Alma Linux 9 ... beeecauuuse their Repo gpg key is using a SHA1 hash and Alma 9 says Nuh-Uh.*Blink *BlinkNow I can set the policy to use SHA1 if I want to, aaaand I don't really want to.THey're going to make me run this in a docker, aren't they.<a href="https://mstdn.social/tags/CollaboraOfficeOnline" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CollaboraOfficeOnline</a> <a href="https://mstdn.social/tags/AlmaLinux9" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AlmaLinux9</a> <a href="https://mstdn.social/tags/GPG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GPG</a> <a href="https://mstdn.social/tags/SHA1" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SHA1</a> <a href="https://mstdn.social/tags/OMGWTF" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OMGWTF</a> <a href="https://mstdn.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SysAdmin</a>

2.5 Admins2.5 Admins 247: MPOFThe basic computer science problems that still remain unsolvable, why you shouldn’t trust AI to tune ZFS (or answer any admin questions), and setting up a check-in system for a group of friends.<a href="https://2.5admins.com/2-5-admins-247/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://2.5admins.com/2-5-admins-247/</a><a href="https://mastodon.social/tags/podcast" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#podcast</a> <a href="https://mastodon.social/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a>

Kushal Das :python: :tor:You decide to take a day of vacation and the red hot issues in production operation decides to happen on the same day, that is life. <a href="https://toots.dgplug.org/tags/devops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#devops</a> <a href="https://toots.dgplug.org/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a>

nixCraft 🐧What's the lifespan of a "temporary" workaround in IT?Approximately the same as the universe, according to the ancient IT proverb: "There's nothing as permanent as a temporary solution." <a href="https://mastodon.social/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://mastodon.social/tags/IT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#IT</a> <a href="https://mastodon.social/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://mastodon.social/tags/unix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#unix</a>

tech<a href="https://unfufadoo.net/tags/tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tech</a> <a href="https://unfufadoo.net/tags/photos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#photos</a> <a href="https://unfufadoo.net/tags/heldesk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#heldesk</a> <a href="https://unfufadoo.net/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://unfufadoo.net/tags/infosec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#infosec</a> <a href="https://unfufadoo.net/tags/cloud" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cloud</a> <a href="https://unfufadoo.net/tags/memes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#memes</a> <a href="https://unfufadoo.net/tags/images" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#images</a> <a href="https://unfufadoo.net/tags/funny" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#funny</a>

Stefano MarinelliThe Server That Wasn't Meant to ExistA story from 16 years ago - trust, tech, and a server that had to disappear. They offered me a blank check. I said no.<a href="https://it-notes.dragas.net/2025/05/13/the_server_that_wasnt_meant_to_exist/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://it-notes.dragas.net/2025/05/13/the_server_that_wasnt_meant_to_exist/</a><a href="https://mastodon.bsd.cafe/tags/ITNotes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITNotes</a> <a href="https://mastodon.bsd.cafe/tags/IT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#IT</a> <a href="https://mastodon.bsd.cafe/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SysAdmin</a> <a href="https://mastodon.bsd.cafe/tags/OwnYourData" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OwnYourData</a>

Crazypedia⍼ :verified_pride:Oh fuck me. It's a <a href="https://masto.hackers.town/tags/FullMoon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FullMoon</a> on a <a href="https://masto.hackers.town/tags/PatchTuesday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PatchTuesday</a> Any superstitious <a href="https://masto.hackers.town/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> about? 😅

mauvehed 🐿️ (KØMVH)System stats are important because they allow you to make obvious assessments of your assets through a visual means.Like this one container that was consuming almost half the CPU on my server for no reason I could determine. A simple restart kicked it in the pants and got it back to normal.I love stats! This sure beats the days of MRTG.<a href="https://defcon.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SysAdmin</a> <a href="https://defcon.social/tags/Hackers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Hackers</a> <a href="https://defcon.social/tags/StatsNerds" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StatsNerds</a>

LINUXexpert.org🧙‍♂️ Ever thought about building your own World of Warcraft private server?It's more than nostalgia—it's a full-stack learning experience in Linux, networking, game design, SQL, cybersecurity, and DevOps. ⚔️💻Learn what it takes: 🔗 <a href="https://linuxexpert.org/what-you-can-learn-from-building-a-world-of-warcraft-private-server/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://linuxexpert.org/what-you-can-learn-from-building-a-world-of-warcraft-private-server/</a><a href="https://mastodon.social/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://mastodon.social/tags/DevOps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DevOps</a> <a href="https://mastodon.social/tags/GameDev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GameDev</a> <a href="https://mastodon.social/tags/WoW" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#WoW</a> <a href="https://mastodon.social/tags/PrivateServer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PrivateServer</a> <a href="https://mastodon.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SysAdmin</a> <a href="https://mastodon.social/tags/Networking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Networking</a> <a href="https://mastodon.social/tags/SQL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SQL</a> <a href="https://mastodon.social/tags/OpenSource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSource</a> <a href="https://mastodon.social/tags/TrinityCore" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TrinityCore</a> <a href="https://mastodon.social/tags/LearningByDoing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LearningByDoing</a>

Jonathan Kamens 86 47Sysadmin journal: setting up wireguard on all of my Linux desktopsI had to hack together a few things to use wireguard transparently on my Android phone and all of my Linux laptops and desktop. <a href="https://federate.social/tags/ddclient" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ddclient</a> <a href="https://federate.social/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://federate.social/tags/NetworkManager" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NetworkManager</a> <a href="https://federate.social/tags/VPN" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VPN</a> <a href="https://federate.social/tags/wireguard" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#wireguard</a> <a href="https://federate.social/tags/Ansible" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Ansible</a> <a href="https://federate.social/tags/SysAdmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SysAdmin</a> <a href="https://blog.kamens.us/2025/05/10/sysadmin-journal-setting-up-wireguard-on-all-of-my-linux-desktops/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://blog.kamens.us/2025/05/10/sysadmin-journal-setting-up-wireguard-on-all-of-my-linux-desktops/</a>

bbbourqI just passed the Red Hat Certified System Administrator exam! <a href="https://lingo.lol/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://lingo.lol/tags/technology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#technology</a> <a href="https://lingo.lol/tags/redhat" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#redhat</a> <a href="https://lingo.lol/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a>

Karl BaronRest in Piece FATTYDOVE Racing, you had an... adequate... 4 year run<a href="https://bitbang.social/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a>

Mad A. Argon :qurio:Old comment on forum: Migrating from <a href="https://is-a.cat/tags/postgres" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postgres</a> 9.5 to 11+ is painful.Me, migrating from 9.4 to 17.2 for several weeks: Huh, I didn't think about it...:blobcatsweat: <a href="https://is-a.cat/tags/admin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#admin</a> <a href="https://is-a.cat/tags/sysadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sysadmin</a> <a href="https://is-a.cat/tags/postgresql" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postgresql</a>

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