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  1. I am testing firewall rules but the telnet is failing.
  2. The firewallrules have been implemented but the target server is not listening on the servers.
  3. How can I enable the target server ports to listen
  • What distro are you using? – ryekayo Aug 26 '15 at 17:37
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    You'll need to give some more info than that, like what are your firewall rules, which ports do you want to listen, distro, etc – neuron Aug 26 '15 at 17:38
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quickest would be to start a netcat listener, e.g. nc -l 23 or ncat -l 23 on the server, then use echo foo | nc server 23 or such on clients to throw data at the server

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