Serveradministration

Every so often I want to migrate a server "whole", as if I were pulling the disk out of the old server and plugging it into the new one. This is not only very convenient (no need …

w is a very helpful command-line tool for a quick overview of which users are currently logged in and what they are doing.

Docker is wasteful with IP subnets by default. On hosts with many networks, this sooner or later leads to the following error: Error response from daemon: could not find an …

I recently rented a small storage VPS at Contabo. On my request (left as a comment during the order) it was provisioned in Munich, giving me a reasonable level of geo-redundancy …

A snapshot is an image of a disk or a system captured at a specific point in time. Depending on the environment, snapshots can be taken "online" (while the system is running) or …

While reviewing logs from various Docker containers I ran into an issue: some containers were running with the host's local timezone (CET), others with UTC. While debugging I even …