Debian based Self-Hosted UniFi Network Server

Install and setup base Debian server. I’m using Debian 12 for this install. Install required packages before you begin with the following command: Use the following command to add a new source list: Add the GPG Keys. Install libssl1.1 (required by mongodb) Install the correct version of MongoDB. Install and upgrade the UniFi Network application with the following command: The […]

Add SPF validation to Postfix

Installing and configuring postfix-policyd-spf-python on CentOS 6.11 While CentOS 6.11 is an older release, you can still install and configure postfix-policyd-spf-python to enhance your Postfix mail server’s SPF checking capabilities. Important: Before you begin, ensure you have the EPEL repository enabled on your CentOS 6.11 system, as postfix-policyd-spf-python may be available in this repository.Steps to install and configure: Install required […]

Fail2ban on OpenBSD 6.0

This is not my article. I found a link to the original article on a Reddit post: https://www.reddit.com/r/openbsd/comments/5e6u61/fail2ban_on_openbsd_60/ The page no-longer exists. I dug up an old copy of the page from the Internet Archive Wayback Machine. The original article was found here: https://blog.gordonturner.com/2016/11/20/fail2ban-on-openbsd-6-0/ Gordon, if this is your article, please forgive the reprint. If you have ever had a […]