Telnet security

When you start Telnet across a TCP connection, you need to consider security measures that prevent or allow user access to the system through Telnet.

For example, you should set limits and controls on the number of sign-on attempts, and the number of devices that a user can use to sign on.

• Preventing Telnet access
  If you do not want anyone to use Telnet to access your system, you should prevent the Telnet server from running. To prevent Telnet access to your system, complete the tasks in this topic.

• Controlling Telnet access
  You should be aware of the security considerations when you want Telnet clients to access your system.

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