This is a neat and very useful trick that I learned today. Lets say that you want to be able to monitor and log all keystrokes that are typed as root. This is particularly useful as normally you can only log when a user uses sudo to run a command. If the user has the abilty to become root however, then they have effectively eluded yourattempts to track their activity. Like Thomas Magnum shaking a tail, they are free to scoot around your island with the top down.
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Xenserver 6 – Create an Addtional Local Storage Respository with Thin Provisioning Support
So recently I deployed 3 XenServer 6 hosts with local storage only. Our need was to virtualize approx 6 very old Centos QA servers running on ancient hardware. Since I did not have any dedicated network/san storage at my disposal I stuck 6, 146 SAS drives in each server and carved them up into a 410GB raid 10 array. However the XenServer install did not detect this secondary logical disk, so I had to figure out how to manualy create a storage repository using this new drive.