Simple if you know how to do it: Preventing Docker (Swarm) from opening ports to the outer world on Debian by overwriting the Docker network magic using iptables and nftables. more...

It took me 10 years to finish my PhD, so I would assume my procrastination skills are not that bad ;) … fortunately, nowadays, I use some basic rules to fight procrastination and have become quite efficient with it. The following three basic rules helped me a lot to organize myself. more...

Note to myself: do not delete your docker swarm cluster when using docker secrets for your docker based databases ;) - In case you do, you have to reset the passwords in the docker databases. more...

Do you need a non-blocking docker based backup solution for your MySQL or MariaDB container? Here it is, a simple to configure docker image which creates (incremental) backups of your database and rotates them automatically. more...