Authentication via a Telnet Session

Users outside the firewall who wish to establish a connection to inside the firewall can do so by opening a telnet session to block, the firewall machine. To do this, you must have a SecurID card.

Begin the session by entering the following command:
telnet block.weizmann.ac.il 259

The following is a typical telnet session to connect to block: 

telnet block.weizmann.ac.il 259
Trying 128.139.221.3...
Connected to wiswall.weizmann.ac.il.
Escape character is '^]'.
this is the WIS system
* Unauthorized access to this computer system 
     and/or software is prohibited. *
* Use of this system constitutes consent to 
     security testing and monitoring. *
User: xyuser
PASSCODE:
When prompted for your PASSCODE, enter your PIN followed by the tokencode currently displaying on your SecurID card. If all goes well, you will get the following response: 

User xyuser authenticated by SecurID
Choose:
        (1) Standard Sign-on
        (2) Sign-off
        (3) Specific Sign-on
Enter your choice:

If you are working in wireless mode, enter 1. That is all you need to do.

If you are not working in wireless mode, enter 3. You will be prompted for the service for which you want to open a secure channel and the name of the host to which you want to open a secure channel:

Service (^D to Quit): groupwise
Host:wisemail
Client Authorized for service Service (^D to Quit): Connection closed by foreign host.
Enter the service and host you want.

If all goes well, you can now connect to the machine you specified (wisemail in the above example) and carry out the service you requested.

If the host you specify is not recognized, try putting in the IP address of the machine instead of it's name. The Unix Group (x-4225) can help you find the IP address.

When you are finished working, you can close the connection by going through the same procedure and choosing (2) Sign-off. A secure connection that has been opened and remains idle for more than 15 minutes, will be automatically closed. You will have to re-establish the connection in order to continue working.

Examples of commonly used services