As part of an experiment at work, I wanted to intercept all traffic on port 80 that was headed to a certain IP address. To handle the traffic, I built a python script using BaseHTTPServer based around this sample code and ran it on .202 - one of my CentOS 5.2 boxes.
Next step was to [...]

Running out of space on your VMWare Server? Try this to convert some of your larger preallocated disks to growable. This way they only consume the space on the disk that they currently need, and will not consume disk space on the host drive for disk space on the guest systems whic is in fact [...]

This is a known bug inherited from RedHat.
http://rhn.redhat.com/errata/RHSA-2009-0225.html
Workaround is to add
scsi0.virtualDev = “lsilogic”
to the .vmx file before installation.

dd if=/dev/cdrom of=your_image.iso

Ensure the mount point /mnt/cdrom exists.
To perform the mount:
mount -t auto /dev/cdrom /mnt/cdrom
If the symbolic link /dev/cdrom is not there, then try:
mount -t auto /dev/hdb /mnt/cdrom
replacing hdb with whatever your device is called.

With CentOS 5.2 (as ever), use the following to enable a listening tcp port (in this case 8000) to be accessed through the firewall.
sudo /sbin/iptables -A INPUT -p tcp –dport 8000 -j ACCEPT
sudo /sbin/service iptables save
sudo /sbin/iptables -F

The instructions for retrofitting Terminal server to Windows Vista Home are here. This enables Remote Desktop to that machine.

The instructions for retrofitting Terminal server to Windows XP Home are here. This enables Remote Desktop to that machine.

I have never really found a good way to diagnose HDD performance problems under any version of Windows, especially not Vista. I did, however, recently find this cool util which is a useful tool to keep at hand. Simple install, intuitive GUI and it just works (as admin under Vista). HD Tune

The best way to make sure servers have the correct time set on their system clock, is to use NTP to synchronize the clock to an external time source. I always use pool.ntp.org as the external source, as this represents a pool of servers who are willing to provide the service. All sorts of things [...]