For security purposes, administrators may wish to disable telnet (incoming connections) on a Solaris 10 system.

To disable telnet on a Solaris 10 system:

# svcadm disable telnet

To re-enable telnet on a Solaris 10 system:

# svcadm -v enable -r telnet

Steps to Follow

An example of functioning telnet, disabling of telnet, and then re-enabling telnet on a Solaris 10 system. If the system in question does not have console or terminal server access, another remote connection (ie. rsh/rlogin/ssh) may be required to make the change. Using telnet to connect while attempting to disable telnet will disconnect the window.

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