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Perlfect Solutions is a company specializing in custom software development for the web, CGI and mod_perl server side programming, database-backed web sites and dynamic content publishing applications. If you need professional perl ...

A community committed to sharing Perl knowledge and coding tips. The site contains questions and answers, useful snippets, and a library of code.

Provides Instruction Guides, How-Tos, Troubleshooting Tips and Tricks on Linux, Database, Hardware, Security, Web and Open Source for both Newbies and Geeks - TheGeekStuff by Ramesh Natarajan

Dev Shed Forums - over 358,810 members on our Dev Shed forums.

Port knocking is a stealthy network authentication system that uses closed ports to carry out identification of trusted users. The system permits manipulation of firewall rules from a remote host across closed ports through encrypted channels.

Null Byte World is for anyone interested in getting into ethical hacking, or any like-minded computer enthusiast looking to protect themselves from malicious hackers and script kiddies. We