Controlling whether networked computers can share messages, files, and printing

Network services let networked computers send and receive messages, shared files, and print. You can create a firewall rule that allows or blocks network services.
You can add a custom network service through a firewall rule. However, that network service is not added to the default list. You cannot access the custom service from any other rule.
  1. To control whether networked computers can share messages, files, and printing
  2. In the console, open a Firewall policy.
  3. On the
    Firewall Policy
    page, under
    Windows Settings
    or
    Mac Settings
    , click
    Rules
    .
    For versions earlier than 14.2, there is no option for
    Mac Settings
    .
  4. On the
    Rules
    tab, in the
    Rules
    list, select the rule you want to edit, right-click the
    Service
    field, and then click
    Edit
    .
  5. In the
    Service List
    dialog box, check the box beside each service that you want to trigger the rule.
  6. To add an additional service for the selected rule only, click
    Add
    .
  7. In the
    Protocol
    dialog box, select a protocol from the
    Protocol
    drop-down list.
  8. Fill out the appropriate fields.
  9. Click
    OK
    .
  10. Click
    OK
    .
  11. Click
    OK
    .