The httpd command with the -t flag can be used to check for syntax errors in a web server configuration files (e.g. httpd.conf).

<web_server_root>/bin/httpd -t

Or, the apachectl command can be used.

<web_server_root>/bin/apachectl -t

If you have multiple web server configuration files (e.g. httpd.conf), the -f option can be used to point to a specific httpd.conf file.

<web_server_root>/bin/httpd -f <web_server_root>/conf/httpd.conf -t

If there are no syntax errors in the httpd.conf file, "Syntax OK" should be returned.

Syntax OK

On the other hand, if a syntax error is found, something like this should be returned.

httpd: Syntax error on line 198 of /opt/IHS/conf/httpd.conf: Cannot load modules/mod_ibm_ssl.so into server: /opt/IHS/modules/mod_ibm_ssl.so: undefined symbol: ihs_socket_iol_push