Having more domains or subdomains hosted on a server implies having individual logging for each subdomain or domain.

Individual logging for each subdomain with Apache:

For each subdomain you have an Apache VirtualHost. You need to add the following two lines in each subdomain's virutal host in your httpd.conf or vhosts.conf file (depending on your configuration), and modify the paths accordingly:

<VirtualHost *:80>     ServerName www.domain.com     ServerAlias domain.com     ErrorLog /var/log/http/domain.com/errorlog #this line     CustomLog /var/log/http/domain.com/accesslog combined #and this line ............................ </VirtualHost>

 First line tells apache that for domain www.domain.com to log errors in /var/log/http/domain.com/errorlog and to log accesses in /var/log/http/domain.com/accesslog.

Do the same with the rest of the domains or subdomains (and you should modify domain.com in the path according to your needs) and create /var/log/http/anothersub.domain.com directory to store the errors and make sure Apache has writing permissions in this directory.

To make sure Apache has writing permissions to /var/log/http/anothersub.domain.com directory, depending on what Operatyng system you're working on you need to change the owner for the directory from root (because you, root, created it) to user www (if you're running Apache on FreeBSD, Linux) or to user nobody (if you're running Apache on AIX or some other Unix. Of course, I'm talking about the default installation.

Restart apache gracefully

$  apachectl graceful /usr/local/sbin/apachectl graceful: httpd gracefully restarted

And Apache will start logging individually for each domain/subdomain you have hosted and you have made the appropriate changes. This is mandatory to be done if you want AWSTATS to monitor the logs.

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