Question: Unable to start Apache: You must load mod_request to enable the mod_auth_form
Applicable to:
Plesk Obsidian for Linux
Symptoms
Apache fails to start with the below error:
You must load mod_request to enable the mod_auth_form functions
AH00016: Configuration Failed
Cause
request module is not enabled in the server
Resolution
1. Log in to Plesk UI
2. Go to Tools & Setting > Apache Web Server and enable request module.
(https://pix.cobrasoft.org/images/2025/10/15/mceclip0-11.png)