Description of problem:

From my Openshift app, I am trying to connect to whois servers via client sockets on port 43 (default port for whois requests). The port 43 seems closed.
I describe the problem and how to reproduce it in here:
https://openshift.redhat.com/community/forums/openshift/problems-installing-the-ruby-gem-whois

Version-Release number of selected component (if applicable):


How reproducible:

You can run this short Ruby scripts (even with irb):

require "socket"
socket = TCPSocket.new("whois.nic.it", 43)
socket.write ("example.it\r\n") 
response = socket.read
puts response
socket.close  # close socket when done

On my laptop works and I get the whois info for the specified domain name.
But on the Openshift server, I get this error:

irb(main):002:0> socket = TCPSocket.new("whois.nic.it", 43)
Errno::EACCES: Permission denied - connect(2)
 from (irb):2:in <code>initialize&#039;&#10;  from (irb):2:in</code>new'
 from (irb):2
   from /opt/rh/ruby193/root/usr/bin/irb:12:in `<main>'