Reverse Dns check

172:rp young$ cat iptodns.rb 

#!/usr/bin/env ruby

require 'resolv'

def check

 if ARGV[0] == nil

   abort 'Please input ARGV[0]'

 end

end

check

def ipdcheck

 begin 

   puts Resolv.getname(ARGV[0])

 rescue

   puts "No hostname associated with #{ARGV[0]}"

 end

end

ipdcheck

Example)

172:rp young$ ruby iptodns.rb 202.131.30.12

No hostname associated with 202.131.30.12

172:rp young$ ruby iptodns.rb 127.0.0.1

localhost

172:rp young$ ruby iptodns.rb 192.0.34.166

34-166.lax.icann.org

172:rp young$ 

Simple ips to certain dns

172:rp young$ cat dns_ip.rb 

#!/usr/bin/env ruby

def check

 if ARGV[0] == nil

  abort 'please input ARGV[0]'

 end

end

check

require 'resolv'

def check_address

    Resolv.each_address(ARGV[0]) do |ip|

      puts ip

    end

end

check_address

172:rp young$ ruby dns_ip.rb naver.com

125.209.222.142

202.131.30.11

202.131.30.12

125.209.222.141

172:rp young$ 

Port check script by ruby

172:rp young$ cat port_check.rb 

#!/usr/bin/env ruby

require 'rubygems'

require 'net/ping'

if Net::Ping::TCP.new(ARGV[0],ARGV[1]).ping

   puts "Pong!"

else

   puts "No response"

end

172:rp young$ ruby port_check.rb www.google.com 80

Pong!

172:rp young$ 

Ping script with ruby

172:rp young$ cat ping.rb 

require 'rubygems'

require 'net/ping'

if Net::Ping::External.new(ARGV[0]).ping

   puts "Pong!"

else

   puts "No response"

end

172:rp young$ ruby ping.rb www.google.com

Pong!

172:rp young$ 

Simple DNS mx check

#!/usr/bin/env ruby

def check

 if ARGV[0] == nil

 abort 'plz input domain name'

 end

end

check

require 'resolv'

dns = Resolv::DNS.new

domain = ARGV[0]

dns.each_resource(domain, Resolv::DNS::Resource::IN::MX) do |mail_server|

 puts mail_server.exchange

end

#How to test

y-MacBook-Pro:rp young$ ruby mf.rb  

plz input domain name

y-MacBook-Pro:rp young$ ruby mf.rb yahoo.com

mta7.am0.yahoodns.net

mta5.am0.yahoodns.net

mta6.am0.yahoodns.net

y-MacBook-Pro:rp young$ ruby mf.rb nate.com

mx1.nate.com

uploading ftp files

#!/usr/bin/env ruby

#Very simple ftp upload program by ruby

if ARGV[0] == nil

 abort "\nInput ftp site ip or domain name"

elsif ARGV[1] == nil

 abort "\nInput the text file that you want to upload"

end

require 'net/ftp'

ftp = Net::FTP.new(ARGV[0])

ftp.passive = true

ftp.login 'yourname', 'yourpasswd'

ftp.chdir('/dir/to/you/want')

ftp.puttextfile(ARGV[1])

#ftp.putbinaryfile(ARGV[1])

ftp.list('*') { |file| puts file }

ftp.close