SSH

Secure Shell (SSH) protocol is a secure replacement for RSH and runs on TCP port 22. This only appears in a port scan if the SecureAdmin software is installed on your storage system.

There are three commonly deployed versions of the SSH protocol:

SSH version 1—is much more secure than RSH or Telnet, but is vulnerable to TCP session attacks.
This vulnerability to attack lies in the SSH protocol version 1 itself and not in the associated storage system products.
SSH version 2—has a number of feature improvements over SSH version 1 and is less vulnerable to attacks.
SSH version 1.5—is used to identify clients or servers that support both SSH versions 1 and 2.

To disable SSH support or to close TCP port 22, use the following CLI command: secureadmin disable ssh

Parent topic: IP port usage on a storage system