Category Archives: Linux

Optimize all your MySQL tables

Here is a small code snipped I’m using to optimize (or repair or defragment) mysql tables. When for eg. mysqltuner shows something like “Total fragmented tables: 20” and you are awake at a very unpopular time (table optimization will lock … Continue reading

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Boosting CRDA regulatory database

Today I will show how to change the CRDA regulatory database to use all available channels and the full power of your wireless adapter.

Posted in Backtrack, Debian, Drivers, Howto, Linux, Wireless | Tagged , , , , , | Leave a comment

Fixing the regulatory domain (CRDA) of Realtek’s RTL8192 linux wifi drivers

I found that the current realtek linux driver series rtl8192** (in my case the Alfa AWUS036NHR high power USB wifi card using the RTL8188RU chipset) ignores the regulatory set by the CRDA service. Cause of that the card will only … Continue reading

Posted in Backtrack, Debian, Drivers, Howto, Linux, Wireless | Tagged , , , , , , , , , , , | Leave a comment