2026-04-06T17:10:01Z https://yabu.me Monospace Mentor https://yabu.me/npub1p7smcn2v57qzf3vax9pkxyuykd6wnsljk4v93pv235dpr03w2akswd40xd https://cdn.masto.host/floss/accounts/avatars/111/340/454/048/716/134/original/1a10719906213ed3.jpg https://cdn.masto.host/floss/accounts/avatars/111/340/454/048/716/134/original/1a10719906213ed3.jpg https://yabu.me/nevent1qqszgdmqh6rlgr5s5nh8807ytvypxathnpp7j8rd05y68hgpfn897tszyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6mc5wgy New Basic Linux System Administration post in The Server Room: &#34;What happens when Linux runs out of PIDs?&#34; <a href="https://community.monospacementor.com/t/354">https://community.monospacementor.com/t/354</a><br/><br/>If you&#39;d like to benefit yourself from our community&#39;s valuable DevOps/SRE knowledge, consider becoming a TSR member: <a href="https://monospacementor.com/devops-learning-community/">https://monospacementor.com/devops-learning-community/</a> 2026-02-13T17:29:02Z https://yabu.me/nevent1qqsv5x4p22n5q96cyk5n4wse86ttjcujxcw9lc9shw8lkd859s4fjcczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk68j4cpn The Adapter pattern makes incompatible interfaces work together. Wrap third-party APIs to match your application&#39;s expected interface. Changes to external services stay contained. #DesignPattern #SoftwareEngineering 2026-01-16T17:29:01Z https://yabu.me/nevent1qqsph7djmxs6lnmzqudqc8nueajja379nml27vlag2hyhzyhx3dd2gqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6v3re5d In reply to <a href='/nevent1qqsf9ygsh7zhdv76zupunq5k6q7hu76ywf30kphm03m0eklk9hun8sqj8mu3m'>nevent1q…mu3m</a><br/>_________________________<br/><br/>Since you&#39;re at it already, try out the EURkey layout. It&#39;s great. 2025-11-15T22:18:16Z https://yabu.me/nevent1qqsr5vxe2cn4llcprdf6lglc9d45nh8gwyarl5ea9ze69y53cwl0msczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk60jqpu9 In reply to <a href='/nevent1qqs00f49t2xxtnky680cu3x2repx9y8h5wd2ragh3klrfrpag4z3t0qla9hmf'>nevent1q…9hmf</a><br/>_________________________<br/><br/>IMHO this is less about how to do moderation but about the delusional &#34;no politics in the workplace&#34;. 2025-10-24T07:24:48Z https://yabu.me/nevent1qqsw70esnczzhg8zz6sw6cwatw9weqlsg2g8fnm2792nux3h7ptuwagzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6zs29tz In my conversations with junior engineers, the issue of work hours comes up often. There&#39;s a lot of bad advice out there, for example &#34;You need to work 80-hour weeks to get good.&#34; I wrote an article on why that&#39;s silly.<br/><br/>➜ <a href="https://monospacementor.com/2024/04/working-hours/">https://monospacementor.com/2024/04/working-hours/</a> 2025-10-20T17:03:53Z https://yabu.me/nevent1qqs0ml8gtpctfz948tvshzj9m2gfq4fqxltqsptat2wfd37am53n76qzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6rmf48p #Linux can lock accounts after login failures. For example, edit `/etc/security/faillock.conf` to set `deny=5` (lock after 5 failures) and `unlock_time=900` (15-minute lockout).<br/><br/>🔗 Learn more in my course: <a href="https://monospacementor.com/courses/linsys-1/">https://monospacementor.com/courses/linsys-1/</a><br/><br/>#SysAdmin #SystemAdministration 2025-10-13T16:41:44Z https://yabu.me/nevent1qqsgndprsa5ayxhkscumr486xq0m2e9a6f3wshnyw56l2lk8qly6hsczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6acdtd3 In reply to <a href='/nevent1qqs9wdgl9g4acj62wlyk6p2xf8f46c0x5qkdnn04pn0ds5njjx2ssxqf85guz'>nevent1q…5guz</a><br/>_________________________<br/><br/>Sweet! Well done. 2025-09-08T07:46:38Z https://yabu.me/nevent1qqstq9hkd38ndww77d5tam7uv2ukw0jgc0fzxw9cyh7exktdzysaaqqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk60aqjvw Tip for Linux shell beginners: Execute a second command only if the first one was successful.<br/><br/>`command_1 &amp;&amp; command 2`<br/><br/>Background: This compound command uses the result code returned by `command_1` with the &#34;shortcircuit&#34; behaviour of the &#34;logical AND&#34; `&amp;&amp;` operator. 2025-08-27T16:29:01Z https://yabu.me/nevent1qqsfqzrhplyh0prhfy5yzlswtmtxyjd50c3xs8m87g400xvmt779dyqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6n59us6 Linux shell tip: Make a quick backup copy<br/><br/>`cp originalfile{,.bak}`<br/><br/>This command copies `originalfile` to `originalfile.bak` using brace expansion for the name suffixes &#34;&#34; (nothing) and &#34;.bak&#34;. 2025-08-04T16:29:01Z https://yabu.me/nevent1qqsv3gknx9thjs6ng0anzdmc295fhlftapmfjsj2e65ax756dmf7yuczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6m6arde In reply to <a href='/nevent1qqsysmxx23n0m3scapgghu99nh0qxn9x2m4j8t9karj4c8z0gqdus9s82lg8f'>nevent1q…lg8f</a><br/>_________________________<br/><br/>I have no idea. I studied CS in the early 90s, and there weren&#39;t any taught back then. 2025-07-19T16:35:16Z https://yabu.me/nevent1qqsvp3ptfrm0wx6mfywgq740g06vt4sy8rtssl0t9kf93wtz3rd6jjqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6h9r0kw The Adapter pattern makes incompatible interfaces work together. Wrap third-party APIs to match your application&#39;s expected interface. Changes to external services stay contained. #DesignPattern #SoftwareEngineering 2025-07-19T16:29:13Z https://yabu.me/nevent1qqsy5v8xcxegnwxs6xk00gwqja4q9pasycuqq8svtttyrqej6zna7cqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk63mxc0e In reply to <a href='/nevent1qqs8h8m3zlq0rxvyh05xpskqmye4aygfdzcl24akrdfyyvqpzkvcpnq67xyk0'>nevent1q…xyk0</a><br/>_________________________<br/><br/>Me in 2004: This OS is constantly distracting me from my work. Time to switch to Mac OS X.<br/>Me in 2020: This OS is constantly distracting me from my work. Time to switch away from macOS. 2025-07-06T11:07:47Z https://yabu.me/nevent1qqsrcw8htwvh748kvw6m9lyc96fvctse0dsq5vkfgxdzw6ztxx8d0wgzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6n8c2f2 In reply to <a href='/nevent1qqs27fcmq3yamzskyneqt97gdn6wxn69xmmgucl327u6emdscxmc4uqvlkwyf'>nevent1q…kwyf</a><br/>_________________________<br/><br/>It&#39;s definitely possible to achieve that with QMK. See &#34;Lighting Layers&#34; on <a href="https://docs.qmk.fm/features/rgblight">https://docs.qmk.fm/features/rgblight</a>.<br/><br/>You&#39;ve nerdsniped me into setting this up for myself. <br/><br/><span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1jjwz42h80fn278xjas9y2k9eeysjqyyh0w4r2kagqw6wf6wt748sex2z5l" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Hyde 📷 🖋 :debian:</span> (<span class="italic">npub1jjw…2z5l</span>)</a></span> 2025-06-24T10:55:35Z https://yabu.me/nevent1qqs2ksft4wldjlcdm606p66yhpq338ydd3te29ye7elrsrz8mgsv4rszyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk629gttj Zulip is underrated as a chat platform. Its automatic threading makes it so much easier to catch up on previous conversations than it is on Slack, Teams or Discord. Zulip is ideal for asynchronous communication in a distributed team, and 100% #OpenSource!<br/><br/>Check it out: <a href="https://zulip.com/">https://zulip.com/</a> 2025-04-09T16:29:01Z https://yabu.me/nevent1qqs2cjz3egsh0qedhdy7np6mnlkv55qczhqn87ryp3w7qkvd0s9r8tgzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6cvcpe8 Almost every Linux CLI tool that requires you to edit a file will consult the `EDITOR` environment variable to spawn the editor you prefer. If you want to use `nano` instead of `vim`, set it as your default editor like this:<br/><br/>`export EDITOR=nano` 2025-03-11T17:29:01Z https://yabu.me/nevent1qqsth8rwyfadpmxm8gn8m4fu8sw69x7vpgtu368kwjyq6r86h4h7e6czyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6r04z4z I code in the Linux shell with tools that follow the Unix philosophy, &#34;Do one thing, and do it well&#34;. One of these tools is `ripgrep`. It&#39;s like `grep`, but searches recursively by default, and can filter file types (`-trb` for Ruby).<br/><br/><a href="https://github.com/BurntSushi/ripgrep">https://github.com/BurntSushi/ripgrep</a> 2025-03-04T17:29:00Z https://yabu.me/nevent1qqswzyj36cegyuycup45vj7kkw36ulqhn2kq2e0sq3f459reg3zpt4qzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6ese6k4 You might be familiar with the Linux shell aliases that you can use to run complicated commands by typing a more convenient one.<br/><br/>But did you think of using aliases to automatically fix typos? For example, why not save yourself from going &#34;Gerp&#34; by defining `alias gerp=grep`? 2025-02-10T17:29:00Z https://yabu.me/nevent1qqsyu29mtwm677gw347eu4c98f2q7g0fgv0vk5xglfk5ajp2rdy3seczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6mrfcl3 I just set up a monthly donation to Mozilla to support #Firefox. It&#39;s such an important part of my desktop and mobile toolset that it makes sense for me to support it financially as well. 2025-02-06T12:16:09Z https://yabu.me/nevent1qqsrz3q6mgugpulvchlavpfqt9mkh35e9qkfxe6lrxqmer4gdlnq0sczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6le7mwr Today, I spent hours trying to install #Bluefin on an older laptop. The process always failed with &#34;Failed to write boot loader configuration&#34;. I tried vanilla #Fedora Silverblue; same result. Finally, I installed Fedora Workstation and booted it successfully.<br/><br/>Following a tip found on the Bluefin Discord, I did &#34;fwupdmgr refresh &amp;&amp; fwupdmgr update&#34;, boosting the UEFI firmware from something like v54 to v379. And just now, the Bluefin installer says &#34;Complete!&#34;<br/><br/>Always update the BIOS first. 2025-02-04T18:14:29Z https://yabu.me/nevent1qqsp7dxsuywyvdwkhdqta76h9d3klr8uql6dmakp897casekdrazylgzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6yt8nyj In reply to <a href='/nevent1qqsz50qfusf45emmmy4qz72s04uqfwtmu2krmu0ydmtpqpvstsztjcscf4p43'>nevent1q…4p43</a><br/>_________________________<br/><br/>That&#39;s good to hear.<br/>That being said, I find it confusing when someone posts about a personal initiative on their org&#39;s website. 2025-02-04T09:37:18Z https://yabu.me/nevent1qqs8kepq5sxcua5q37rk7v9eul7j9hkd7t75wtz9gsya2yvdz658mngzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk62xadps LIVE NOW! Time for my weekly DevOps/SecOps/SRE office hour. If you have any questions about #Linux, #SystemAdministration, #Ruby, #DevOps, or any other engineering topic, join the live stream and ask them!<br/><br/><a href="https://www.twitch.tv/monospacementor">https://www.twitch.tv/monospacementor</a><br/><a href="https://www.youtube.com/@monospacementor">https://www.youtube.com/@monospacementor</a><br/><br/>#AMA #SysAdmin #LearnLinux #LiveStream #LiveCoding 2025-01-31T14:07:30Z https://yabu.me/nevent1qqsdlpwhegplh5kgyln7vl28dwqf5x3cut0v2wg40h46k50g6kmxy7gzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6dh849s In reply to <a href='/nevent1qqsgz8wtyzktymdnwpl40c28546vmmet2egx2k88e5yz2x6vfjnwkeccpj2m6'>nevent1q…j2m6</a><br/>_________________________<br/><br/>Please elaborate. 2024-12-13T17:08:48Z https://yabu.me/nevent1qqsrl0qlzsnt7e9dq28f0aua4gk6s53q7j0y3ksl0uvx3mvyzumpjygzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6tu2p3n In reply to <a href='/nevent1qqsrw3e2l954znda0sdnl493zz8rcjlehatarf3k4kvzexnh33cd2tsm6ltkp'>nevent1q…ltkp</a><br/>_________________________<br/><br/>What is it about Mastodon that makes people go &#34;Let&#39;s respond with the worst take I can think of&#34;? <span itemprop="mentions" itemscope itemtype="https://schema.org/Person"><a itemprop="url" href="/npub1k2fnsg35mxqx5g4q6tur8ny0hl8cf2aw4gnr67ft733xjuz3vrlq6g6yk2" class="bg-lavender dark:prose:text-neutral-50 dark:text-neutral-50 dark:bg-garnet px-1"><span>Avdi Grimm</span> (<span class="italic">npub1k2f…6yk2</span>)</a></span> 2024-10-14T08:03:39Z https://yabu.me/nevent1qqsglt9xg6ptq0qwnxxc6mvtv466yl05qr8ftxtr6avqpdgphkn67zqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk69qlk9m Tabs vs spaces has always been a controversial topic. Thankfully, #vim isn&#39;t biased in any way.<br/><br/>To convert spaces to tabs, use `:set noexpandtab`, then `:retab!`.<br/><br/>Convert tabs to spaces with:<br/><br/>:set expandtab<br/>:set tabstop=4<br/>:set shiftwidth=4<br/>:retab 2024-09-05T19:27:00Z https://yabu.me/nevent1qqsx67rt0l0rpfyrhgfr5pgc7rlc8r397zukaxv2gc5knw98e6tvyxgzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk60ft6e6 Tip for Linux shell beginners: Execute a second command only if the first one was successful.<br/><br/>`command_1 &amp;&amp; command 2`<br/><br/>Background: This compound command uses the result code returned by `command_1` with the &#34;shortcircuit&#34; behaviour of the &#34;logical AND&#34; `&amp;&amp;` operator. 2024-08-29T19:27:00Z https://yabu.me/nevent1qqsqaccxyha4rrz256d24ktcf39p0q4ul5t02krdpz5s260jljdjpdqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6dxyws9 Not only can you use `tail -f &lt;file&gt;` to continuously output a file (a service log, for example) while it&#39;s being written, you can even filter specific keywords in the process:<br/><br/>`tail -f myfile | grep &lt;keyword&gt;` 2024-08-28T07:41:01Z https://yabu.me/nevent1qqsqxxj8saftxmcr97qqejevvzdddkucvpjd5lx8ttwqdazkqrpmknczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6qhax5r Did you know there are variants of common Linux shell tools that have decompression function built in? For example, instead of first uncompressing a file to then view it in `less`, you can simply use `zless`.<br/><br/>There&#39;s also `zcat`, `zgrep`, `zcmp` and`zdiff`. 2024-08-27T19:27:01Z https://yabu.me/nevent1qqsd9pfkcsj3hryrmp8x3yecv9amld0jd8k30vfwrn8srr2tyds7txgzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk67l5r8d The shell command list you get with `history` is numbered. You can repeat a specific command with `!&lt;number&gt;`. A bit convoluted.<br/><br/>What I do more often is repeating the previous command with `!!`. For example, when I forgot to use `sudo`, I simply go `sudo !!`. 2024-08-14T19:27:01Z https://yabu.me/nevent1qqszu8eeatmsuyvmk48pvd0gezwsl03rxq25lwh9cwd9cc4n6jn4tmczyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6rrsvf3 Linux shell tip: Make a quick backup copy<br/><br/>`cp originalfile{,.bak}`<br/><br/>This command copies `originalfile` to `originalfile.bak` using brace expansion for the name suffixes &#34;&#34; (nothing) and &#34;.bak&#34;. 2024-08-07T19:27:00Z https://yabu.me/nevent1qqsyqpwtwtc9puvsd528ss734vaw6l67py6vk8emzz4ntx88z9lehcqzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk6xnd6ft In reply to <a href='/nevent1qqsrmgnktml2rchkxtz4l9m8j6efymf2qpr7z3rvj4uxx8zh9l2udasjm6s47'>nevent1q…6s47</a><br/>_________________________<br/><br/>Making EU citizenship stronger than nationality when it comes to voting. I like it. 2024-08-05T10:41:30Z https://yabu.me/nevent1qqsd0lye3uca8qqejfk4l438slyz2lkjuvtrnr0zxvtnj34wp9a4dxgzyq86r0zdfjncqfx9n5c5xccnsjehf6wr7264sky932x35yd79etk620ewky In reply to <a href='/nevent1qqsxlwyxtfy78mtjysmfzuw3djl8k9qdz7am783kxfgfpjt8lpemelgftjlmz'>nevent1q…jlmz</a><br/>_________________________<br/><br/>That&#39;s obviously because you are not even a 2nd-class citizen. Are you proposing to get the right to vote where you only have residency? 2024-08-05T09:13:43Z