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Before You Configure SSH

You must obtain and install a commercial SSH client on the host from which you want to administer the system. Versions earlier than 2.0.12 of the SSH client are not supported.

Determine your Telnet policy before you configure SSH on your system. Effective use of SSH implies that you should severely limit Telnet access to the system. To limit Telnet access, create access control lists that prevent almost all Telnet usage, permitting only trusted administrators to access the system through Telnet. For example, you might limit access to administrators who need to Telnet to the system from a remote host that does not have the SSH client installed.

You must install and configure a RADIUS server on a host machine before you configure SSH on your router. Refer to your RADIUS server documentation for information about choosing a host machine and installing the server software. You must also configure the RADIUS client on your router. See JUNOSe Broadband Access Configuration Guide for more information.

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