Merhaba,

kişisel onerim security ile ilgili 1-2 kitap satin alip bunlardan faydalanmak olacak;

Securing Windows Server 2003
http://safari.oreilly.com/0596006853

Understanding PKI: Concepts, Standards, and Deployment Considerations, Second Edition
http://my.safaribooksonline.com/0672323915

Emre AYDIN