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<article class="post on-list">
<h2 class="post-title">
<a href="https://agren.cc/p/flatcar-on-incus/">Flatcar Linux VM under Incus on Debian</a>
</h2>
<div class="post-meta"><time class="post-date">2024-12-09</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/sysadmin/">sysadmin</a>
#<a href="https://agren.cc/tags/linux/">linux</a>
#<a href="https://agren.cc/tags/incus/">incus</a>
#<a href="https://agren.cc/tags/docker/">docker</a>
#<a href="https://agren.cc/tags/flatcar/">flatcar</a>
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<div class="post-content">
<p>Flatcar Linux is a fork of the now defunct CoreOS, specifically designed
to run container workloads. It has an immutable root file system and
automatic updates, and here’s how you can run it as a VM under Incus.</p>
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<a class="read-more button inline" href="/p/flatcar-on-incus/">Read more</a>
</div>
</article>
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<h2 class="post-title">
<a href="https://agren.cc/p/freebsd-vm-incus/">FreeBSD VM under Incus on Debian</a>
</h2>
<div class="post-meta"><time class="post-date">2024-11-24</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/freebsd/">freebsd</a>
#<a href="https://agren.cc/tags/sysadmin/">sysadmin</a>
#<a href="https://agren.cc/tags/linux/">linux</a>
#<a href="https://agren.cc/tags/incus/">incus</a>
</span>
<div class="post-content">
<p>Incus helps you manage both containers (LXC) and virtual machines
(QEMU), and while many images come prepared, FreeBSD is not one of them:
here’s how to set it up.</p>
</div>
<div>
<a class="read-more button inline" href="/p/freebsd-vm-incus/">Read more</a>
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<h2 class="post-title">
<a href="https://agren.cc/p/frankenphp/">Roundcube with FrankenPHP on Debian</a>
</h2>
<div class="post-meta"><time class="post-date">2024-11-09</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/sysadmin/">sysadmin</a>
#<a href="https://agren.cc/tags/linux/">linux</a>
#<a href="https://agren.cc/tags/php/">php</a>
#<a href="https://agren.cc/tags/mail/">mail</a>
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<div class="post-content">
<p>FrankenPHP is a “modern application server for PHP built on top of the
Caddy web server”, which in its simplest form lets you serve PHP apps
without the nginx/apache config salad you may be used to. Here’s how to
set it up as a service on Debian.</p>
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<h2 class="post-title">
<a href="https://agren.cc/p/freebsd-on-vmware/">Deploying FreeBSD on VMware</a>
</h2>
<div class="post-meta"><time class="post-date">2024-09-23</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/freebsd/">freebsd</a>
#<a href="https://agren.cc/tags/vmware/">vmware</a>
#<a href="https://agren.cc/tags/sysadmin/">sysadmin</a>
#<a href="https://agren.cc/tags/linux/">linux</a>
</span>
<div class="post-content">
<p>This post is about multiple components involved in deploying FreeBSD to
a VMware environment. Since there are many moving parts this may also be
interesting in general to anyone doing “infrastructure as code” and
cloud deployments, the process is quite similar for Linux.</p>
</div>
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<a class="read-more button inline" href="/p/freebsd-on-vmware/">Read more</a>
</div>
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<h2 class="post-title">
<a href="https://agren.cc/p/trusted-gpg/">Using signed-by in Debian repository configuration</a>
</h2>
<div class="post-meta"><time class="post-date">2024-05-05</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/linux/">linux</a>
#<a href="https://agren.cc/tags/debian/">debian</a>
#<a href="https://agren.cc/tags/ubuntu/">ubuntu</a>
#<a href="https://agren.cc/tags/sysadmin/">sysadmin</a>
</span>
<div class="post-content">
<p>On newer versions of Debian and Ubuntu, the way repos are authenticated
through public keys has changed somewhat. Here’s what I’ve found.</p>
</div>
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<a class="read-more button inline" href="/p/trusted-gpg/">Read more</a>
</div>
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<article class="post on-list">
<h2 class="post-title">
<a href="https://agren.cc/p/certbot-with-haproxy/">LetsEncrypt DNS wildcard certificates with HAProxy</a>
</h2>
<div class="post-meta"><time class="post-date">2024-03-12</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/sysadmin/">sysadmin</a>
#<a href="https://agren.cc/tags/linux/">linux</a>
</span>
<div class="post-content">
<p>Wildcard certificates are really useful, especially in cases where you
are using a load balancer like HAProxy that targets multiple backends
serving separate subdomains.</p>
</div>
<div>
<a class="read-more button inline" href="/p/certbot-with-haproxy/">Read more</a>
</div>
</article>
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<h2 class="post-title">
<a href="https://agren.cc/p/curl-to-vlc/">Using curl to pass videos to VLC on Apple TV</a>
</h2>
<div class="post-meta"><time class="post-date">2023-09-13</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/linux/">linux</a>
#<a href="https://agren.cc/tags/apple/">apple</a>
</span>
<div class="post-content">
<p>VLC has always been a great piece of software, but one place where is
really shines is on iOS/tvOS since it allows you to play pretty much any
video file, and you can send that file over curl.</p>
</div>
<div>
<a class="read-more button inline" href="/p/curl-to-vlc/">Read more</a>
</div>
</article>
<article class="post on-list">
<h2 class="post-title">
<a href="https://agren.cc/p/mac-spoofing-captive-wifi/">MAC spoofing on Wi-Fi with captive portals</a>
</h2>
<div class="post-meta"><time class="post-date">2022-12-25</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/linux/">linux</a>
#<a href="https://agren.cc/tags/wifi/">wifi</a>
</span>
<div class="post-content">
<p>Not all devices are capable of handling <a href="https://en.wikipedia.org/wiki/Captive_portal">captive
portals</a>. Problematic
devices usually include older hardware with outdated browsers, such as
“smart” TVs, gaming consoles and the like.</p>
</div>
<div>
<a class="read-more button inline" href="/p/mac-spoofing-captive-wifi/">Read more</a>
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<h2 class="post-title">
<a href="https://agren.cc/p/manual-disk-encryption/">Manual disk encryption on Ubuntu</a>
</h2>
<div class="post-meta"><time class="post-date">2022-12-03</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/sysadmin/">sysadmin</a>
#<a href="https://agren.cc/tags/linux/">linux</a>
</span>
<div class="post-content">
<p>Ubuntu makes it very easy to set up full disk encryption, but it
requires you to wipe the entire disk if you want the wizard to do it for
you, so this is how you can set it up manually.</p>
</div>
<div>
<a class="read-more button inline" href="/p/manual-disk-encryption/">Read more</a>
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</article>
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<h2 class="post-title">
<a href="https://agren.cc/p/luks-file/">Encrypted LUKS file container</a>
</h2>
<div class="post-meta"><time class="post-date">2022-10-28</time></div>
<span class="post-tags">
#<a href="https://agren.cc/tags/linux/">linux</a>
</span>
<div class="post-content">
<p>While <a href="https://en.wikipedia.org/wiki/Linux_Unified_Key_Setup">Linux Unified Key Setup</a> — <code>LUKS</code> — is mostly used to encrypt entire disks under Linux, it can also be used to easily create an encrypted file container. This can be used as an alternative to encrypting something like a <code>.tar.gz</code> file directly, and will be easier to mount and read, without having to write decrypted data to disk.</p>
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<a class="read-more button inline" href="/p/luks-file/">Read more</a>
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