Ansible is a quite nice tool for ssh based systems management and orchestration. It is written in python and hosted on github. Quite easy to install by using pip or setup.py install, but creating a deb package out of the…

Alle Partitionen anzeigen [email protected] ~ $ cat /proc/partitions major minor #blocks name 8 0 209715200 sda 8 1 205688832 sda1 8 2 1 sda2 8 5 4023296 sda5 Partitionen anlegen mit fdisk [email protected] ~ $ fdisk /dev/sda (p) – Anzeige…

Using pdsh is some kind of a knife with latches on both sides. Nevertheless it is a great tool to do things really fast on a lot of systems. It is able to execute ssh commands in parallel on many…

Basics Ein Shellbefehl besteht allgemein aus bis zu 3 Teilen. Dem aufzurufenden Kommando (ein Shell-interner Befehl, eine ausf├╝hrbare Datei oder ein Skript), den Optionen und Argumenten. Optionen werden ├╝blicherweise als Einzelbuchstabe mit einem „-“ voran verwendet oder als ausgeschriebenes Wort…

I somtimes encouter an error while mounting „/“ as read-only again. What can be done?

The default I/O scheduler is optimized to schedule requests in an equal manner. Since SSDs are even faster in reading than writing, deadline scheduler favours read requests. This helpts to increase the throughput in some circumstances.

I use PC Engines Alix boards as VPN Appliances intended to connect some branch offices. They are rock solid, work for years without any problem and bring the flexibility one needs to implement all the nice stuff. 3x Lan Interface,…

After installing a minimal debian-base distro like voyage-linux, there is a message like the following during updates f.e. figuring that there are some language settings to be done: perl: warning: Falling back to the standard locale („C“). perl: warning: Setting…

After moving or adding some files manually, you may want to update the owncloud file cache, to making changes visible in the webinterface. While there was an app called „rescan_fs“ to do so in owncloud 4, it is not working…

As there are only old version available in dist repos, it might be nice to build the latest version from source.