Systems & Networking

This is an update to the original How to Setup DomainKeys Identified Mail (DKIM) with Postfix and FreeBSD. A lot has changed in the time since that was written. First off, it's no longer called DomainsKeys. Now a days the standard goes by DKIM and the software used is OpenDKIM.

If you are getting errors like HttpRequestBase not present or unable to resolve class groovyx.net.http.HTTPBuilder on your Jenkins jobs then you will need to manually download and install some missing libraries.

Normally when you want to set options for your SSH server you would edit it's default configuration file located under /etc/ssh/sshd_config. This is the default file that's read by the sshd application. However this becomes a little more challenging when you want to use automated tooling to roll out configuration changes.

When you install and run Elasticsearch or OpenSearch on FreeBSD you might find that after a few days your root volume starts to get full. This is caused by temporary files that are created by each of those search engines in the system's temporary directory.

The FreeBSD ports tree only has the old PgAdmin 3 desktop app available, there is no port for the web based 4.x series. It's very unfortunate that the PgAdmin developers chose to go this route. It seems that no one these days is capable of building an application without falling back to HTML and Javascript. It's just another example of the sad state of the technology ecosystem and developer skills. Anyway, lets install PgAdmin 4 on FreeBSD.