Today, in the Unix world, remote administration is a must. Telnet, while still used here and there, is awfully insecure, old and useless for the task. Most, if not all, administrative tasks can be performed on the command line, so the only universal choice left is OpenSSH/SSH...

In medium or big corporate network there is always a questions like “how do we log all the activities from server hosts” or “how do we implement audit trails”...

In one of my previous jobs we had lots of partners. They all used some internal web applications. Such applications can not be exposed to the whole Internet, so we had to use some technology to protect them. What were our options?

SELinux is a hot and still new topic in the security world. It's one of the tools that makes RHEL 5 so secure (EAL 4+). Let's see what it is and how hard would it be to utilize it's power for our protection...