Dell SonicWALL Secure Mobile Access 8.5Administration Guide 287You can also revert back to using the global settings for the signature group to which this signature belongswithout losing the configuration details of existing exclusions.The list of signatures can be sorted by the contents of any column in ascending or descending order by clickingthe column heading. In addition, signatures can be divided into pages and filtered by searching for a key word.To display only signatures containing a key word in all fields or a specific field, type the key word in the Searchfield, select All Fields or a specific field to search, and click Search. Or, click Exclude to display onlysignatures that do not contain the key word. Click Reset to display all signatures. All matches are highlighted.The default is 50 signatures per page.On the Web Application Firewall > Settings page, global settings must be set to either Prevent All or Detect Allfor the Signature Group to which the specific signature belongs. If neither is set, that Signature Group isglobally disabled and cannot be modified on a per-signature basis. See Enabling Web Application Firewall andConfiguring General Settings on page 279.See the following sections:• Enabling Performance Optimization on page 288• Configuring Signature Based Custom Handling and Exclusions on page 288• Reverting a Signature to Global Settings on page 289• Removing a Host from a Per-Signature Exclusion on page 290