Telnet is insecure and should generally be avoided. Its use over public networks entails serious security risks.
There are three main problems with Telnet, making it a bad choice for modern systems:
* Commonly used telnet daemons have several vulnerabilities discovered over the years, and probably several more still exist.
* Telnet does not encrypt any data sent over the connection (including passwords), and so it is trivial to eavesdrop on the communications and use the password later for malicious purposes.
* Telnet lacks an authentication scheme that makes it possible to ensure that communication is carried out between the two desired hosts, and not intercepted in the middle.
I'd suggest using SSH, (Secure SHell) instead.
To start SSH in Redhat based systems you'd type service sshd start (or service ssh start) I don't use Redhat so I can't be sure. Perhaps a RH user can pipe in with the correct command.
Last edited by jon_k; 05-24-2005 at 06:40 AM.
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