Network Scanning

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Network Scanning
Network ping sweeping
required net-ping gem
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gem install net-ping
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#!/usr/bin/env ruby
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# KING SABRI | @KINGSABRI
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#
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require 'net/ping'
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​
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@icmp = Net::Ping::ICMP.new(ARGV[0])
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rtary = []
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pingfails = 0
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repeat = 5
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puts 'starting to ping'
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(1..repeat).each do
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  if @icmp.ping
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    rtary << @icmp.duration
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    puts "host replied in #{@icmp.duration}"
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  else
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    pingfails += 1
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    puts "timeout"
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  end
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end
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​
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avg = rtary.inject(0) {|sum, i| sum + i}/(repeat - pingfails)
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puts "Average round-trip is #{avg}\n"
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puts "#{pingfails} packets were dropped"
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Port Scanner
If you got what we've represented in Ruby Socket section, then here we wrapping up and do some application depends on it. scanner.rb
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#!/usr/bin/env ruby
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#
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# KING SABRI | @KINGSABRI
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#
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require 'socket'
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require 'thread'
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require 'timeout'
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​
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host = ARGV[0]
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​
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def scan(host)
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  (0..1024).each do |port|
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    Thread.new {
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      begin
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        timeout(3) do                    # timeout of running operation
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          s = TCPSocket.new(host, port)            # Create new socket
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          puts "[+] #{host} | Port #{port} open"
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          s.close
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        end
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      rescue Errno::ECONNREFUSED
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        # puts "[!] #{host} | Port #{port} closed"
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        next
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      rescue Timeout::Error
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        puts "[!] #{host} | Port #{port} timeout/filtered"
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        next
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      end
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    }.join
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  end
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end
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​
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scan host
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Run it
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ruby scanner.rb 45.33.32.156    # scanme.nmap.com
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​
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[+] 45.33.32.156 | Port 22 open
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[+] 45.33.32.156 | Port 80 open
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[!] 45.33.32.156 | Port 81 timeout
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[!] 45.33.32.156 | Port 85 timeout
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[!] 45.33.32.156 | Port 119 timeout
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[!] 45.33.32.156 | Port 655 timeout
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[!] 45.33.32.156 | Port 959 timeout
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Network ping sweeping
Port Scanner