- Plesk for Linux
Apache service fails to start or the websites fail to load with:
PLESK_INFO: 502 Bad Gateway
The following error messages are logged in
CONFIG_TEXT: AH03262: mod_watchdog is required
AH00020: Configuration Failed, exiting
mod_watchdog is disabled on the server, by required by Apache.
Go to Tools & Setings > Apache Web Server.
Enable the watchdog module:
Click OK to apply the changes.