Debugging iptables on Red Hat and CentOS

When setting up new services on a clean Red Hat or CentOS install, many administrators […]

Hardly ever add -A INPUT -j ACCEPT to solve your firewall problems!

Managing user accounts

Creating new accounts and changing passwords is by far the most common administrative work. In […]

Configuring Xserver in Ubuntu to allow remote X applications

Running remote X applications on Fedora and Red Hat works out of box, but it […]