Rules Expression Editor

Passive monitors and other monitors that provide pattern checking enable you to apply simple regular expression syntax. You can use a rule expression to test a string or a page of text for pattern matching. You can check for word frequency, HTTP error pages, literal strings, and much more.

After creating and testing the expression, click OK to insert the string into the Match on box.

Note: If you have multiple payload "match on" expressions, they are linked by "OR" logic - not "AND" logic. Example: If you have two expressions, one set to "AB" and the other to "BA", it will match against a trap containing any of the following: "AB" or "BA" or "ABBA".

See Also


Monitor Types

Assigning Monitors

Critical Active Monitors

Active Monitors

Passive Monitors

Performance Monitors

Advanced settings: performance monitor collection

Configure Memory Threshold

Configure Disk Performance Threshold

Adding Custom Thresholds

Ping Advanced Settings

Active Monitor Advanced Properties

Advanced Settings