If you have upgraded to Fedora Linux Core 3 recently (or planning to do so), there are probably a couple of questions you have about SELinux. If you have, then check out SELinux FAQ. Maybe it will help you. Maybe it will not. At least I tried. :)
That NoName 100 Mbps switch that I was using for my internal network has strangely died today. I’ve experienced problems with it before, but it was different all the time. I always had a hub as a temporary backup solution, but I gave it away some time ago. Thanks to my brother, I now have a brand new 3Com 100Mbps switch. It is only 5 ports instead of 8 ports of the dead one, but it should be enough. I have only 3 ports occupied now, so there are another 2 for my guests.
The funny coincidence is that two days ago I had to repeat three times that network administration is not my biggest interest. :)
MRTG (Multi Router Traffic Grapher) is monitoring utility, which runs on many platforms and is capable of collecting and graphing statistical information such as network traffic, CPU/Memory/Disk space usage, etc. MRTG can gather information using both SNMP protocol and external scripts. Below are few pieces of my MRTG config file together with scripts, which I felt like sharing.