Running clamav in Docker under Linux

Update 2023.10.20: there is a newer version on Github [3] I'm running ClamAV [1] on an Ubuntu 18.04 server in Docker and wanted to document, for posteriority and my own dementia, the setup process and considerations. Thankfully there is an official (?), well-maintained ClamAV image on Docker hub. ClamAV can run stand-alone or as a … Continue reading Running clamav in Docker under Linux →

My home NAS setup, 2022 edition

This post is an update of the my 2020 home NAS setup. A few things changed since then, the most important the introduction of snapraid for the media and archiving portion of the NAS. The hardware hasn't changed much apart from a (preventive) hard-disk replacement; my admiration and gratitude goes to HP for building a … Continue reading My home NAS setup, 2022 edition →

Driver does not support any RC mode compatible with selected options (supported modes: CQP)

Rendering a video with KDEnlive 22.08.1 under Ubuntu 22.04 on the Acer Nitro5 with the hardware accelerated VAAPI Intel H264 profile aborts with this error: Driver does not support any RC mode compatible with selected options (supported modes: CQP). I'm not deep enough into the KDEnlive architecture to understand what I'm doing, my superficial understanding … Continue reading Driver does not support any RC mode compatible with selected options (supported modes: CQP) →

RAID + dm-integrity vs bit rot

In Building the perfect, cheap NAS I discuss bit rot which silently kills digital archives; my solution chosen back then builds on parchive which adds in a manual process redundancy to archives. This redundancy can be used to identify and correct bit rot to some extent. The issue with this approach is that it's manual … Continue reading RAID + dm-integrity vs bit rot →

Slow rsync on ext4 filesystem

On a rather hefty rsync job between two local ext4 filesystems, writing on the target (a mechanical hard drive which should be able to sustain 100 mb/s) would fluctuate strongly (between 0 mb/s and 160 mb/s) and effectively slow down to a few mb/s on average after a few minutes. While I didn't find the … Continue reading Slow rsync on ext4 filesystem →