Month: June 2009
Internet Speed Issue – How to use TCP window scaling option
From few simplifying test results on previous article "Internet Speed Issue – Why TCP window size is matter", indeed TCP window size made difference of…
How to setup FreeRADIUS server?
Tweet Here is a simple documentation how to setup FreeRADIUS server. It’s written by Korean. http://www.ibm.com/developerworks/kr/library/l-radius/
Preventing Security Attacks from all OSI 7 Layer
Tweet Let’s quickly look what kinds of Security Attacks on OSI 7 Layer. Layer 7. Application /6. Presentation/5. Session Layer – Virus, Warms, Tro-hourse, Buffer…
How to hide an access-list applied?
Tweet Sometime, you even don’t want to reply ICMP unreachable message response back to requester. It’s very simple. Here is how you do it. (Assume…
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