Problem with apache2

[MrBean06]

Hi,

I have a new problem if I want restart apache2:

Starting httpd2 (prefork) httpd2-prefork: Syntax error on line 113 of /etc/apache2/httpd.conf: Syntax error on line 28 of /etc/apache2/sysconfig.d/loadmodule.conf: Cannot load /usr/lib/apache2-prefork/mod_proxy_ajp.so into server: /usr/lib/apache2-prefork/mod_proxy_ajp.so: undefined symbol: proxy_module

The command line was:
/usr/sbin/httpd2-prefork -f /etc/apache2/httpd.conf -DSSL
                                                                      failed

Where is the problem and have anybody a solution for me?

Thanks.

[Martin Heiland]

Hi,

the problem is that the module mod_proxy_ajp cannot be loaded, could it me that the module is not compatible with apache? Some kind of mixed-up installation, i have never seen this before.

[MrBean06]

For a while all runs fine, but the connect from Client to Server dosn't work.
Today I open the file proxy_ajp.conf and with yast the http-Server-config, and now I get this Problem, but nothing is changed???

[Martin Heiland]

That depends on what Yast did to that file

[MrBean06]

Yes, it's right, but I'm still without a solution. :-(

[Martin Heiland]

Hi,

could you please check /etc/apache2/sysconfig.d/loadmodule.conf if there is any reference to load module_proxy? It seems this module is not loading and therefor proxy_ajp cannot load.
You must _first_ load mod_proxy, then proxy_ajp - the order is important in this case.

Also see: https://bugzilla.redhat.com/show_bug.cgi?id=478454


Greetings.

[MrBean06]

Now I've changed the modul...

#
# Files in this directory are created at apache start time by /usr/sbin/rcapache2 
# Do not edit them!
#

# as listed in APACHE_MODULES (/etc/sysconfig/apache2)

LoadModule authz_host_module              /usr/lib/apache2-prefork/mod_authz_host.so
LoadModule actions_module                 /usr/lib/apache2-prefork/mod_actions.so
LoadModule alias_module                   /usr/lib/apache2-prefork/mod_alias.so
LoadModule auth_basic_module              /usr/lib/apache2-prefork/mod_auth_basic.so
LoadModule authz_groupfile_module         /usr/lib/apache2-prefork/mod_authz_groupfile.so
LoadModule authn_file_module              /usr/lib/apache2-prefork/mod_authn_file.so
LoadModule authz_user_module              /usr/lib/apache2-prefork/mod_authz_user.so
LoadModule autoindex_module               /usr/lib/apache2-prefork/mod_autoindex.so
LoadModule cgi_module                     /usr/lib/apache2-prefork/mod_cgi.so
LoadModule dir_module                     /usr/lib/apache2-prefork/mod_dir.so
LoadModule expires_module                 /usr/lib/apache2-prefork/mod_expires.so
LoadModule include_module                 /usr/lib/apache2-prefork/mod_include.so
LoadModule log_config_module              /usr/lib/apache2-prefork/mod_log_config.so
LoadModule mime_module                    /usr/lib/apache2-prefork/mod_mime.so
LoadModule negotiation_module             /usr/lib/apache2-prefork/mod_negotiation.so
LoadModule setenvif_module                /usr/lib/apache2-prefork/mod_setenvif.so
LoadModule status_module                  /usr/lib/apache2-prefork/mod_status.so
LoadModule userdir_module                 /usr/lib/apache2-prefork/mod_userdir.so
LoadModule asis_module                    /usr/lib/apache2-prefork/mod_asis.so
LoadModule deflate_module                 /usr/lib/apache2-prefork/mod_deflate.so
LoadModule headers_module                 /usr/lib/apache2-prefork/mod_headers.so
LoadModule imagemap_module                /usr/lib/apache2-prefork/mod_imagemap.so
LoadModule ssl_module                     /usr/lib/apache2-prefork/mod_ssl.so
LoadModule authz_default_module           /usr/lib/apache2-prefork/mod_authz_default.so
LoadModule proxy_module                   /usr/lib/apache2-prefork/mod_proxy.so
LoadModule proxy_ajp_module               /usr/lib/apache2-prefork/mod_proxy_ajp.so

#

...but I get the same error.

And if reboot my system, it change it back???

[MrBean06]

Now I've added the module proxy_balancer and the apache rechanged the loadmodule.conf and all works fine.

Thanks for help.

#
# Files in this directory are created at apache start time by /usr/sbin/rcapache2 
# Do not edit them!
#

# as listed in APACHE_MODULES (/etc/sysconfig/apache2)

LoadModule authz_host_module              /usr/lib/apache2-prefork/mod_authz_host.so
LoadModule actions_module                 /usr/lib/apache2-prefork/mod_actions.so
LoadModule alias_module                   /usr/lib/apache2-prefork/mod_alias.so
LoadModule auth_basic_module              /usr/lib/apache2-prefork/mod_auth_basic.so
LoadModule authz_groupfile_module         /usr/lib/apache2-prefork/mod_authz_groupfile.so
LoadModule authn_file_module              /usr/lib/apache2-prefork/mod_authn_file.so
LoadModule authz_user_module              /usr/lib/apache2-prefork/mod_authz_user.so
LoadModule autoindex_module               /usr/lib/apache2-prefork/mod_autoindex.so
LoadModule cgi_module                     /usr/lib/apache2-prefork/mod_cgi.so
LoadModule dir_module                     /usr/lib/apache2-prefork/mod_dir.so
LoadModule expires_module                 /usr/lib/apache2-prefork/mod_expires.so
LoadModule include_module                 /usr/lib/apache2-prefork/mod_include.so
LoadModule log_config_module              /usr/lib/apache2-prefork/mod_log_config.so
LoadModule mime_module                    /usr/lib/apache2-prefork/mod_mime.so
LoadModule negotiation_module             /usr/lib/apache2-prefork/mod_negotiation.so
LoadModule setenvif_module                /usr/lib/apache2-prefork/mod_setenvif.so
LoadModule status_module                  /usr/lib/apache2-prefork/mod_status.so
LoadModule userdir_module                 /usr/lib/apache2-prefork/mod_userdir.so
LoadModule asis_module                    /usr/lib/apache2-prefork/mod_asis.so
LoadModule deflate_module                 /usr/lib/apache2-prefork/mod_deflate.so
LoadModule headers_module                 /usr/lib/apache2-prefork/mod_headers.so
LoadModule imagemap_module                /usr/lib/apache2-prefork/mod_imagemap.so
LoadModule proxy_module                   /usr/lib/apache2-prefork/mod_proxy.so
LoadModule ssl_module                     /usr/lib/apache2-prefork/mod_ssl.so
LoadModule authz_default_module           /usr/lib/apache2-prefork/mod_authz_default.so
LoadModule proxy_ajp_module               /usr/lib/apache2-prefork/mod_proxy_ajp.so
LoadModule proxy_balancer_module          /usr/lib/apache2-prefork/mod_proxy_balancer.so
#