From: Kirk Graham (kgraham@instructors.net)
Date: Wed Nov 10 2004 - 21:54:04 GMT-3
Does anyone there know what the Reverse Telnet port numbers are all about?
Port Protocol
2000 telnet
3000 telnet with rotary
4000 raw tcp
5000 raw tcp with rotary
6000 telnet binary mode
7000 telnet binary mode with rotary
9000 Xremote
10000 Xremote with rotary
As I understand rotary is grouping physical ports together so that the
"next available" port will be used.
2000/3000 are obviously "telnet".
9000/10000 Xremote is a remote desktop utility for *nix.
6000/7000 appears to be used for an EOL application Cisco DialOut Utility
(now you can use DialOut/EZ from Tactical Systems) for dialout modem/fax users.
But what is 4000/5000 (raw TCP) used for?
I'm assuming that its for other TCP applications (not telnet) like
"rlogin", "rsh", and "ssh". But I'm probably wrong.
Does anyone have a good explanation?
Anyone have labs that show using these ports other than 2000/3000???
Thanks,
Kirk
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