When setting up a check printing environment for a client, I ran into an issue where even though I changed the /etc/cupsd.conf file to listen on port 443, the service would not actually start! Why not use the CUPS default port 631? Simple answer - too many of the client's Palo Alto firewalls were configured … Continue reading Changing CUPS to run on Port 443 with SELinux

Everywhere I have worked, we had the same cultural problem where people leave AD computer objects in the default Computers container. Everyone from desktop support to server engineers to storage engineers. This is because when you join a computer (or service - i.e. NAS) to the domain, unless the object is staged, the object will … Continue reading How to deal with AD Objects left in default Computers container

I have quite often run into issues with clients where they certain web applications no longer work after a Firewall Migration or implementation of Web Proxies (such as BlueCoat). The scope of the issue tended to be the webUI mgmt interfaces of our various network and server devices - i.e. Aruba, Nutanix, NetApp, HP iLo, … Continue reading Browser SSL/TLS Errors with no Error Codes