Disable the Telnet service

Oracle Healthcare Master Person Index does not use the Telnet service. By default, Telnet listens on port 23. If the Telnet service is available on any computer, Oracle recommends that you disable Telnet in favor of Secure Shell (SSH).

Telnet, which sends clear-text passwords and user names through a log-in, is a security risk to your servers. Disabling Telnet tightens and protects your system security.