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Old 10-13-2009, 02:27 AM   #1
venkateswarlu k
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same telnet login should not open in any systems

i am new to Linux, using suse linux 11.0 and i restrict same telnet login should not open in any systems
Old 10-13-2009, 03:17 AM   #2
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Originally Posted by venkateswarlu k View Post
i am new to Linux, using suse linux 11.0 and i restrict same telnet login should not open in any systems
Even better, disable the Telnet server and use SSH instead. SSH is much better than Telnet -- it has more features, is much more secure, and is fine-tunable in ways that Telnet cannot be.
Old 10-13-2009, 05:24 AM   #3
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Exactly, plus telnet server should not be running and used simply because it's insecure. In a telnet session, the username and password details are sent in clear text. SSH is secure and traffic between the client and server is encrypted.
Old 10-13-2009, 05:39 AM   #4
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The telnet client is a very useful tool. The server should not be installed. You could simply uninstall the telnet-server package. It is supplied by a separate package from the server.

I've never installed the telnet server, but it probably uses the tcwrap library, which means that you can use hosts.allow and hosts.deny to give some control, in case you have no choice but use telnet. Read the "man 5 hosts_access" man page. Pay attention to the CLIENT USERNAME LOOKUP section.


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