Establishing a Secure Telnet Connection to the EAGLE using UNIX/Solaris OpenSSH

To establish a secure telnet connection to the EAGLE using OpenSSH from a UNIX/Solaris machine, perform these steps.

1. Open an Xterm window.
2. In the Xterm window, go to the bin folder in the folder where the OpenSSH software was installed.

   For this example, enter this command

   cd <install path>/OpenSSH/bin

3. In the Xterm window, enter the ssh command with these options and values.
   • -N - once the authentication is complete, the ssh program executes in the background, meaning the prompt should be returned so that a second command can be entered following the semicolon.
   • -f
   • -L
   • the local/forwarding port number, for this example, 23000
   • the local loopback address, 127.0.0.1:23. Port 23 is reserved for ssh.
   • The IP address of the EAGLE IPSM. For this example, 10:253.104.36.
   • The telnet command with the local loopback address, without the port number, and the local/forwarding port number.

   For this example, enter this command.

   ssh -N -f -L 23000:127.0.0.1:23 10:253.104.36; telnet 127.0.0.1 23000

   Note:

   1. On Solaris 9 and later, SunSSH is installed. SunSSH is not compatible with the EAGLE secure Telnet terminals. If you have any questions about which version of ssh in being invoked, enter the Unix command which ssh to ensure that OpenSSH is being used instead of the Sun version.
   2. When issuing the ssh command, if the IPSM on the EAGLE has undergone a hard reset, the ssh key stored in the local_host file must be purged.
   3. If you are making the connection to the EAGLE for the first time, and you are prompted to accept the ssh key, accept the ssh key and proceed to 4.
4. When the Eagle prompt is received in the Xterm window, choose an EAGLE terminal and login with your EAGLE username and password.
5. To logout of the EAGLE and close the secure telnet connection, perform these actions.
   • At the EAGLE, enter the logout command.
   • Press the Ctrl+] keys to receive the telnet prompt.
   • Enter quit.