Symptoms

After following all the steps from  Integrate Jira server and IIS with Application Request Routing, you are now getting the error HTTP error 500.51 - URL Rewrite Module Error when you attempt to access Jira through IIS.

Cause

The error normally indicates a problem with the URL Rewrite's Pattern present in the rule.

Resolution

Make sure you have a URL Rewrite rule created as specified in step 4 from this article:

1. Add a new URL Rewrite Rule for jira.example.com:
   1. From the IIS7 Console, click on jira.example.com and open URL Rewrite:
      
   2. From the Actions panel on the right hand side, select "Add Rules" and choose "Blank Rule";
   3. Set Match URL to:
      1. Requested URL: Matches the Pattern
      2. Using: Regular Expressions
      3. Pattern: (.*)
      4. Ignore Case: Checked
   4. Set Action to:
      1. Action Type: Rewrite
      2. Rewrite URL: http://<JIRA_url:Port>/{R:1}
      3. Append query string: Checked
   5. Mark Stop processing of subsequent rules;
      
2. Restart IIS