Linux Update Cheatsheet

DistroWatch offers a very nice cheatsheet on what basic commands the different flavors of linux use.  We’re talking the apt-get/yum/zypper stuff.

Source: Put the fun back into computing. Use Linux, BSD.


Network Monitoring

Mill Yard Computing used to offer these tips for network monitoring. They have taken this down, so here it is for you:


On CentOS it is in the EPEL repo.

It shows a list of network connections and the data transferred over the past 2 sec, 10 sec & 40 sec (a bit like […]

Mounting drives (physical & image) on VirtualBox

To mount a physical hard disk onto a VirtualBox guest, we need to first create a VMDK configuration file which points to the physical disk, and then attach this VMDK file to the VirtualBox guest.

VirtualBox running on Linux:

VBoxManage internalcommands createrawvmdk -filename ~/sdd.vmdk -rawdisk /dev/sdd

Now attach ~/sdd.vmdk to your guest as normal


Use dd to image a disk

“dd” is the linux command for taking byte by byte copies of files. Since a hard disk behaves sort of like a big file in linux, we can use “dd” to take a copy or image.

It is a good idea to zero all free space on the original disk before taking the image. […]