centos7 Apache/2.4.6

athreyavc · 04-03-2017, 10:08 AM

Hi,

I am running a centos7 and apache server (httpd)

Code:

apachectl -V
[Mon Apr 03 16:01:54.213096 2017] [so:warn] [pid 55106] AH01574: module remoteip_module is already loaded, skipping
[Mon Apr 03 16:01:54.213235 2017] [so:warn] [pid 55106] AH01574: module remoteip_module is already loaded, skipping
Server version: Apache/2.4.6 (CentOS)

Though remote_ip module is installed it doesn't seem to work. I have a PHP script from in which I need to record the HTTP_X_REAL_IP.

I am getting

Code:

PHP Notice:  Undefined index: HTTP_X_REAL_IP

This webserver is behind an Haproxy server and I have set on HAPROXY

Code:

option forwardfor header X_REAL_IP

On the CentOS webserver, /etc/httpd/conf.modules.d/360_mod_remoteip.conf

Code:

LoadModule remoteip_module modules/mod_remoteip.so
RemoteIPTrustedProxy 192.168.10.43
RemoteIPHeader X-Forwarded-For
RemoteIPHeader X-Real-IP

But it just doesn't seem to work.

Any help is really appreciated.

Regards,

Habitual · 04-04-2017, 04:30 AM

Installed, but did you enable it?

Code:

a2enmod remoteip

likely needs a service restart also.

r3sistance · 04-04-2017, 04:41 AM

Quote:

Originally Posted by Habitual

Installed, but did you enable it?

Code:

a2enmod remoteip

likely needs a service restart also.

CentOS doesn't use a2enmod, that I believe is a Ubuntu/Debian specific thing. It would be best to confirm with either of the following

Code:

[root@Web1 ~]# httpd -M | grep "remote"
 remoteip_module (shared)
[root@Web1 ~]# apachectl -M | grep "remote"
 remoteip_module (shared)

remoteip is a default in the CentOS/RHEL supplied apache build anyways.

Code:

# yum provides /etc/httpd/modules/mod_remoteip.so
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
httpd-2.4.6-40.el7.centos.1.x86_64 : Apache HTTP Server
Repo        : @updates
Matched from:
Filename    : /etc/httpd/modules/mod_remoteip.so

More details on how it isn't working may help.

athreyavc · 04-04-2017, 11:16 AM

Hi,

Thanks for the Replies

It seems the apache 2.4 doesn't support HEADERS with UNDERSCORE in them. This I got from the link below,

http://geekyschmidt.com/2016/03/23/a...th-underscores

Quote:

Starting with Apache 2.4, headers were dropped that contained items to include underscores and expects dashes instead. Red Hat backported this change into the Apache 2.2 that ships with 6.7. You can read more here:https://httpd.apache.org/docs/2.4/env.html

I applied that fix and it is working for me now.

Regards,

loping · 09-11-2018, 10:57 AM

the above link is moved. try http://geekyschmidt.com/techie/2016/...derscores.html now

Habitual · 09-11-2018, 05:09 PM

Cloudflare? They have some dox on this thing: