Question

Unable to start apache on RHEL 7

[root@ABFSTCLCGTWPA ~]# systemctl -l status httpd
● httpd.service - The Apache HTTP Server
   Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Thu 2020-05-28 20:41:19 IST; 13min ago
     Docs: man:httpd.service(8)
  Process: 200132 ExecStart=/usr/sbin/httpd $OPTIONS -DFOREGROUND (code=exited, status=1/FAILURE)
 Main PID: 200132 (code=exited, status=1/FAILURE)

May 28 20:41:19 ABFSTCLCGTWPA systemd[1]: Starting The Apache HTTP Server...
May 28 20:41:19 ABFSTCLCGTWPA httpd[200132]: httpd: Syntax error on line 56 of /etc/httpd/conf/httpd.conf: Syntax error on line 49 of /etc/httpd/conf.modules.d/00-base.conf: Cannot load modules/mod_remoteip.so into server: /etc/httpd/modules/mod_remoteip.so: undefined symbol: apr_sockaddr_is_wildcard
May 28 20:41:19 ABFSTCLCGTWPA systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
May 28 20:41:19 ABFSTCLCGTWPA systemd[1]: Failed to start The Apache HTTP Server.
May 28 20:41:19 ABFSTCLCGTWPA systemd[1]: Unit httpd.service entered failed state.
May 28 20:41:19 ABFSTCLCGTWPA systemd[1]: httpd.service failed.

when i entered below comment

[root@ABFSTCLCGTWPA ~]# sudo httpd -t
httpd: Syntax error on line 56 of /etc/httpd/conf/httpd.conf: Syntax error on line 49 of /etc/httpd/conf.modules.d/00-base.conf: Cannot load modules/mod_remoteip.so into server: /etc/httpd/modules/mod_remoteip.so: undefined symbol: apr_sockaddr_is_wildcard
[root@ABFSTCLCGTWPA ~]#
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Bobby Iliev • May 28, 2020

Hi there @ksiddhesh54,

It looks like you are trying to load an apache module called mod_remoteip but there is a problem with the mod_remoteip.so file. How did you exactly install the module?

You could try to reinstall the module first and then load it in your Apache configuration.

Another thing you could do, as a quick fix, remove or comment out the line from your Apache config file so that it does not try to load it.

To do that open the /etc/httpd/conf.modules.d/00-base.conf config file on line 49 and add a # in the beginning in order to disable the module completely. After that restart Apache again.

Let me know how it goes! Regards, Bobby