For Virt Manager to work across multiple hosts you need key-based ssh access.
How to extract compressed files of the .tar.gz variety. An essential bit of knowledge.
How to extract .gz (not .tar.gz) files from the Linux CLI.
How to reset a Windows password using Linux. It's very, very easy! We hope this helps you out of a troublesome situation!
If you're running a mdadm RAID array and a drive fails, what do you do? Here's something that might help.
How to clone any drive using dd and then view the progress of the operation
How to set up Snort with Barnyard and MySQL on Centos 6 to make a nice IDS solution.
This error can stop you updating a system. This is how to sort it on a CentOS/RHEL OS.
How to change the default runlevel in RHEL clones. Control what your install boots to - desktop or CLI.
A few changes that make a difference to overall network throughput. Worth doing!
Switching all devices to virtio when using KVM is a must. Here's how to add drivers to Windows without it throwing a BSOD.
How to get those DBs into files for storage/transfer and how to then get them back into your new/backup server.