30 Jul '13, 11pm

Build a Port Scanner in Ruby #ruby #rails #security

Sometimes, we box ourselves up in our HTTP-only world. Sometimes, Rails eclipses all other facets of Ruby. In this article, we’ll build a simple port scanner in pure Ruby, using the sockets support that comes with the Ruby distribution. Port scanners aren’t typically things we expect Rubyists create; that’s the kind of stuff that the C people deal with. A lot of people are surprised when they find out that Metasploit , an amazing penetration suite, is actually written in Ruby. The truth is that Ruby has grown into an incredibly versatile language, making it a tool that can be used in a wide variety of things, including something as systems-y as a port scanner. Let’s dive right in! The Basics First of all, what is a port scanner? It is exactly what it sounds like; it takes in an IP address, and tells you which ports are “open”, i.e. on which ports the computer is ready to c...

Full article: http://rubysource.com/build-a-port-scanner-in-ruby/

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