Submit a ticketCall us

WebinarFREE IT Monitoring Webcast

Don’t miss out on our webcast, Essential IT Monitoring with SolarWinds ipMonitor, where we will show you how to keep an eye on your IT environment from one centralized, affordable, and lightweight monitoring tool: SolarWinds® ipMonitor®.

Register now.

Home > Success Center > Network Configuration Manager (NCM) > NCM - Knowledgebase Articles > Unable to compare configuration files most likely caused by broken regular expressions

Unable to compare configuration files most likely caused by broken regular expressions

Updated August 23, 2017

Overview

This article describes issues related to the following error:
Unable to compare configuration files, most likely caused by broken regular expressions. Inspect your logs for details.

 

Environment

  • NCM 7.6

 

Cause 

 

The configuration differences engine doesn’t accept some regular expression characters or tokens.

Resolution

  1. Click Settings > All Settings.
  2. Under Product Specific Settings, click NCM Settings. 
  3. Under Configs, click Comparison Criteria.
  4. Replace all ‘\s’ occurrences to ‘[ \t\r\n\v\f]’ in the RegEx column.
    Example: ‘\s*crypto.*certificate’ -> ‘[ \t\r\n\v\f]*crypto.*certificate’
  5. Replace all ‘error’ occurrences to ‘er[r]or’ in the RegEx column.
    Example: ‘errors*’ -> ‘er[r]ors*’
 

 

Last modified

Tags

Classifications

Public