Date: Mon, 2 Sep 96 10:29:01 EST From: M C Wong <mcw@hpato.aus.hp.com> To: questions@freebsd.org Subject: Anyway to check firewall access ? Message-ID: <199609020029.AA104694143@relay.hp.com>
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I have a friend living overseas who relies on telnet and other services to communicate with me in his office. Email is NOT available for some reason. He is using a PC, and only application he can relies on is telnet, which he uses to login to my machine and initiate talk. No WinTalk etc available. Recently, his site admin configure the Cisco box to block all outgoing telnet traffic meaning we can NO longer keep in touch. My question is, is there a way of finding out the permitted outgoing ports on that Cisco box WITHOUT commiting something that is considered illegal ? I meant can I run some program to poke/gather info in that box to gather their ACL for outgoing service only ? I am NOT interested in what can go in but what can come out. The friend is NOT a computer person and has NOT much knowledge of TCP/IP etc so I can't get him to talk to the IT guy easily about those things. I know port 80 is permitted but I don't really want to run a telnetd at that port. Any suggestion ?
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