- Plesk Onyx for Linux
- The following error occurs on attempt to start Apache web server:
PLESK_ERROR: httpd: Syntax error on line 353 of /etc/httpd/conf/httpd.conf: Syntax error on line 6 of /etc/httpd/conf.d/fcgid.conf: Cannot load modules/mod_fcgid.so into server: /etc/httpd/modules/mod_fcgid.so: undefined symbol: ap_unixd_setup_child
- After disabling
mod_fcgid, Apache fails with:
PLESK_ERROR: AH00526: Syntax error on line 66 of /etc/httpd/conf/httpd.conf:
Invalid command 'User', perhaps misspelled or defined by a module not included in the server configuration
mod_unixd module is disabled on the server.
It is required to enable
mod_unixd in order to fix this issue.
- Log into Plesk
- Go to Tools & Settings > Apache Web Server
- Select the
- Click OK
- At Tools & Settings > Service Management, start the Apache Web Server service
mod_fcgid back in case it was disabled during the troubleshooting.
See the following article for the command line resolution: After dist-upgrade Apache was upgraded from 2.2 to 2.4, Apache and cannot start