… and got a new coffee mug. 🙂
Articles in Category "GNU/Linux"
Determine IPv4 Addresses of a Libvirt Qemu-KVM Domain
1. Juli 2023 in Administration, GNU/Linux, Technology.
In the VM, on Redhat-likes, make sure that the Qemu guest agent is installed: dnf install qemu-guest-agent On Debian-likes, execute: apt install qemu-guest-agent For Microsoft Windows guests, there are some tutorials on the web, see for example [1]. On the HV, execute: virsh qemu-agent-command –domain myvm \ ‘{“execute”:”guest-network-get-interfaces”}’ | \ jq -r ‘ [.return[] | […]
Removing the Builtin Inline CSS from WordPress
27. August 2022 in Programming.
Should you – as i did – wonder why WordPress renders a bucket of inline CSS into the HTML output (such as –wp–preset–font-size–normal in <html> or –wp–preset–color–white in <body>): This is done to accomodate frontend editing with Gutenberg. If you – as i do – are not using Gutenberg frontend editing, then the following PHP […]
Updated Common Prefix Notation Transformation
2. Februar 2024 in Programming.
This is an update to my previous article on determining the common prefixes of a set of strings (passed a sequence of lines) and printing them in common prefix notation (CPN). The problem of reconstructing strings from the original input that are complete prefixes of other input strings is addressed. The code is now in […]
Print XDG Desktop Definition for Application
3. November 2024 in Administration, GNU/Linux.
Update Nov 3 2024: There is an update to this article that provides this script as commandline utility. There is also a Git repository. For an application given by “application name” or “executable name”, output the corresponding .desktop file, if any: #!/bin/sh IFS=”:” xdg_data_dirs=${XDG_DATA_DIRS:-/usr/local/share:/usr/share} search=$1 for i in $xdg_data_dirs ; do a=”$i/applications” [ -d $a […]
Transforming Sets of Strings to their Common Prefix Notation
26. Juli 2025 in Programming.
Update Aug 20 2022: There is an update to this article that fixes a known issue. There is also a Git repository containing a reference implementation. Any two strings s1, s2 have a common prefix cp, which is the string of characters that s1 and s2 have in common up from the start. If s1, […]
Pi-KVM Hat v3
20. August 2023 in Administration, GNU/Linux, Technology.
Ich freue mich, zu den Glücklichen zu gehören, die den Pi-KVM Hat v3 mit passendem Stahlgehäuse ergattert haben (https://pikvm.org/). Das Warten hat sich gelohnt.
CentOS/8 Stream on libvirt/KVM with Kickstart and virt-install
22. Januar 2023 in Administration, GNU/Linux, Technology.
This article describes using Kickstart to automate the CentOS installer and virt-install to automate the creation of a VM. The following setup is assumed: There is a libvirt hypervisor called virthost. ssh to virthost as “root” is possible.