SELinux Basics

To a lot of administrators, SELinux is that thing you disable when you first setup a Linux server. There are also a lot of cloud providers that have SELinux disabled by default on their images. Once you have a better understanding of SELinux you will see that it is best to properly configure it and […]

How to Use Key Based SSH Authentication

Using public key authentication is much more secure than using password authentication. This is even more important if your Linux server has a Internet routable IP address (cloud servers or servers hosted by a hosting company for example). To help put this in perspective, checking the /var/log/secure log file on one of my cloud servers […]