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Logbook and Note Book

I'm no longer actively working with Linux although I use it privately. This was my work logbook during my job as a Linux Engineer and Architect for KPN Data Centers.  I'm keeping this as a log and note book. Who knows when it comes in handy although much will be outdated. If you find any good resources or more current howtos for what was written here, let me know!
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MySQL TCO Savings Calculator

MySQL created a TCO (Total Cost of Ownership) calculator showing how cheap MySQL is compared to Microsoft MSSQL and Sybase. Interestingly, the parent company Oracle remains out of this picture. I find that sad. Why not be open and let the customer decide? Either way, the savings of MySQL Enterprise Edition to MSSQL are shocking: MySQL TCO Savings Calculator . Add your grain of salt...
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Dell and Ubuntu Server Edition 11.10

Dell has released a statement about ubuntu 11.10 on Dell PowerEdge . Dell lists that Ubuntu should work where the previous versions also worked and is currently re-certifying most PowerEdge and PowerEdge-C servers. Check Canonical's hardware certification page for details. Also good to know is that OpenManage (OMSA) has been released for Ubuntu , although it is not officially supported.
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Sudoreplay Manual

Using sudoers in Linux to implement security is commonly done. Often administrators or operators allow themselves to 'sudo su -' to become root, without the need to know the root password. This is more comfortable as you don't need to type "sudo" in front of every command and your sudoers file becomes less exhaustive without the need to specify every command operators and sysadmins need. However, enforcing everyone - even sysadmins - to prepend every command with "sudo" creates an audit trail when sudo logs to a file. This often required for compliancy reasons. Now there is a command to playback sudo logs: Sudoreplay Manual .
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