How to customize LogFormat for Apache Virtual Hosts?

Question

I really need some help with this. My server has multiple virtual hosts, each virtual host has its access log, I need to be able to customize the LogFormat for each virtual host exist on server. I have modified LogFormat in httpd.conf but it actually affects only the master access log and not the virtual hosts.

Here is my LogFormat:

<IfModule log_config_module>
LogFormat "%v:%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %{CF-Connecting-IP}i" combinedvhost
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %{CF-Connecting-IP}i" combined
LogFormat "%h %l %u %t \"%r\" %>s %b %{CF-Connecting-IP}i" common

CustomLog "logs/access_log" combined
CustomLog logs/access_log combinedvhost

<IfModule logio_module>
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %{CF-Connecting-IP}i" combinedio
</IfModule>

</IfModule>

<IfModule mod_log_config.c>
LogFormat "%v:%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %{CF-Connecting-IP}i" combinedvhost
LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %{CF-Connecting-IP}i" combined
LogFormat "%h %l %u %t \"%r\" %>s %b %{CF-Connecting-IP}i" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

CustomLog logs/access_log common
CustomLog logs/access_log combined
CustomLog logs/access_log combinedvhost

</IfModule>

The above LogFormat only affects the master access log which located at: /usr/local/apache/logs/access_log However, it does not affect any of the virtual hosts on server that have their access logs located at: /home/username/access-logs/domain.com

I'm not sure if I have something wrong in the LogFormat itself or I'm missing something. I've spent many hours trying to solve this problem but didn't find a solution. I'd greatly appreciate it if someone could shed some light on this. Thank you.

Solution

The trick is to add CustomLog directives inside each VirtualHost in your Apache config files. For example:

<VirtualHost *:80>
  ServerName www.site1.com
  DocumentRoot /var/www/www.site1.com/htdocs
  CustomLog /var/log/apache/www.site1.com-access.log combined
  ErrorLog /var/log/apache/www.site1.com-error.log
</VirtualHost>

<VirtualHost *:80>
  ServerName www.site2.com
  DocumentRoot /var/www/www.site2.com/htdocs
  CustomLog /var/log/apache/www.site2.com-access.log combined
  ErrorLog /var/log/apache/www.site2.com-error.log
</VirtualHost>

There are more useful examples here.

Comments

[fixer1234]

Can you elaborate on that (how to do it)?