Author Archives: Ahmed Tawfik

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About Ahmed Tawfik

Cybersecurity Professional, Systems Engineer, OSS & Linux Geek

Regenerate Database Console Repository

Posted on January 6, 2010 by Ahmed Tawfik

This is needed in case you misconfigured your Database console, you should rebuild it by doing the following: Drop it: “emca -deconfig dbcontrol db -repos drop“ Recreate it: “emca -config dbcontrol db -repos create” That’s it, should be fine now … Continue reading →

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How to solve the problems of "Oracle Enterprise Linux" in virtualbox

Posted on January 6, 2010 by Ahmed Tawfik

Not able to boot: Just press escape during the grub loading process and choose the second kernel :), that’s it! If you want it to be persistent to avoid doing that at every startup, just go edit the “/boot/grub/grub.conf” and … Continue reading →

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The anonymity script in action :)

Posted on January 1, 2010 by Ahmed Tawfik

The trick worked on my wireless router at home :), check the screenshots below:

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How to draw a circle – or any other shape using selection tools – with Gimp

Posted on January 1, 2010 by Ahmed Tawfik

I know it sounds a bit stupid, and it really is, but the following shows you how to draw that stupid thing: Use any selection tool (Rectangle Select Tool, Ellipse Select Tool, Free Select Tool …etc) and select the part … Continue reading →

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How I removed an annoying nautilus context menu item

Posted on December 30, 2009 by Ahmed Tawfik

AT LAST I DID IT!! After installing the new version of Lotus Notes, it added a stupid item to my nautilus context menu labeled “Send to Lotus Notes”, this item crashes nautilus whenever it’s clicked!! and it was bothering me … Continue reading →

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