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jocke Posts

Plex GPU transcoding in Docker on LXC on Proxmox v2

Published April 20, 2025

It’s been a few years since I made my post about getting Plex GPU transcoding to work in Docker inside an LXC container running on Proxmox. It’s gotten quite a few updates over the years based on feedbacks and own observations, which fixes different problems and optimized several aspects.

I recently upgraded my Proxmox-host to the latest Debian Bookworm 12.10 (Proxmox 8.4.1), and also wanted to update my NVIDIA-drivers from 550.100 to the latest 570.144.

After the upgrade everything seemed to be fine, but Plex transcoding would not work. All my usual previous fixes did not solve the problem. I decided to “start from scratch”, and see if I could a) get it to work, b) simplify the setup, and c) improve where possible.

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Plex GPU transcoding in Docker on LXC on Proxmox

Published February 23, 2022

I recently had to get GPU transcoding in Plex to work. The setup involved running Plex inside a Docker container, inside of an LXC container, running on top of Proxmox. I found some general guidelines online, but none that covered all aspects (especially dual layer of containerization/virtualization). I ran into a few challenges to get this working properly, so I’ll attempt to give a complete guide here.

Edit (2025-04-20): I’ve since created a new version of this guide (v2). I recommend that you use the new version. I will not be able to validate any aspects of the old guide, as I’m using the new setup. Also, this version (v1) will probably not get much updates due to this.

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SSL-certificate on Cisco Prime Infrastructure

Published February 10, 2016

Usually I don’t bother installing appropriate (i.e. public/proper) HTTPS/SSL-certificates for management softwares and other “internal” software. However, making parts of Cisco Prime Infrastructure available for “outsiders” can be quite useful, hence I saw the need to install a proper certificate.

I recently had to do this while installing Cisco Prime Infrastructure 3.0, so I thought I’d document it, since it’s not as straight-forward as one would think. The last time I did the procedure, was after installing Prime Infrastructure 2.0 almost 2 years ago.

There are basically three steps;

1) Fetch CA + properly convert the certificate
2) Install the CA certificates
3) Install the actual certificate

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Rename AP’s on Cisco WLC

Published August 22, 2014

Recently I came across an issue with Windows DHCP & DNS, specifically related to Cisco AP’s and DDNS. By default Cisco AP’s have period in the hostname (APxxxx.yyyy.zzzz), and this apparently causes issues for Windows DHCP/DNS regarding DDNS. If you have a scope with option 15 (Domain Name) set to foo.bar, and you have clients that only returns option 12 (hostname) and no FQDN (option 81) you’d expect Windows to append option 15 to the hostname. In the case for Cisco AP’s, they seem to only return option 12. You’d then expect Windows DHCP to use APxxxx.yyyy.zzzz.foo.bar as the FQDN for the DDNS update, but this is not the case. In stead, it tries to update the DNS with APxxxx.yyyy.zzzz as the FQDN (where yyyy.zzzz is considered a domain due to the period), hence it will obviously fail, as you don’t have any zone yyyy.zzzz configured in your DNS.

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MySQL-cluster how-to (with load-balancing & failover)

Published March 13, 2011

Since I recently configured and installed a MySQL-cluster, I thought I’d share the procedure. A lot of the examples around explains how to set it all up on the same machine for “testing purposes” — which, in theory, is the same as setting it up on different machines. I’ll be explaining the latter, that is, installing it onto different machines.

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