All posts related to Configuration:

July 5, 2020

Upgrade gitlab-ce in docker and run a PostgreSQL migration

Tags: Configuration

Prerequisites
  • Of course you need a running and working gitlab-ce docker instance.
  • Same free disk space as your gitlab instance + docker image is using right now (a little less should work too).
  • Backup all your data!


November 7, 2017

What the hell is DKIM and SPF

Tags: Mailserver | Configuration

DKIM (DomainKeys Identified Mail) is a technique for authenticating emails.

Since I have been dealing with mail servers for some time and my goal is to build a stable mail server cluster, it was time to deal with email security. So also with DKIM and SPF.

In the following my experiences on the topic and a factual explanation as possible :)