unusual user activities

[nbniel () gmail com]

Hi there,
I wonder if someone could help me in classifing the types of bad activities or unusual behaviour that a user or an 
employee inside of an enterprise could do in order to violate the security, information substraction, bad use of 
broadband, etc.
Please i just need to have a list with the possible unusual activities in order to monitor my network specifically.
Thanks for help.

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Securing Apache Web Server with thawte Digital Certificate
In this guide we examine the importance of Apache-SSL and who needs an SSL certificate.  We look at how SSL works, how 
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