SunScreen SKIP User's Guide, Release 1.1

Adding Excluded Systems

If the default entry remains on the authorized systems list, then any remote host with which you want to prevent communication must be configured using the Add button located under the excluded systems list. When setting up an excluded system, you only need to enter the hostname for hosts and network number for networks. For nomadic systems you need to specify the key IDs.

If the state of the host or network changes to an authorized system, you must delete the system from the excluded systems list and add it to the authorized systems list.

The easiest way to exclude a system is to move it from the authorized systems list with the arrow button to the excluded systems list. The arrow buttons make it easy to add or delete systems when troubleshooting and the host is already present in the authorized systems list. If the host does not already exist on one of the lists, it is simpler to add it directly on the excluded systems list so that you can move it easily with the arrow button when you wish to add it to the authorized systems list.


Note -

If you move an encrypted host from the authorized systems list to the excluded systems list with the arrow button, SunScreen SKIP retains the encryption parameters so that if you later move this host back to the authorized systems list, its parameters are restored.


You can also complete the following steps to exclude a system:

  1. Click on the Add button at the bottom of the excluded systems list on skiptool's main window.

  2. Select the system type: Host, Network, or Nomadic.

  3. In the Hostname field on the Exclude System window, enter the name or IP address of the host system that you want to deny access to your system.

    If you are excluding a nomadic system, also enter the key ID.

  4. Click Apply on the Exclude System window.


    Caution - Caution -

    If you add or delete ACL entries from one list to another, the addition or deletion takes effect immediately.