Webalizer

Install

apt-get install webalizer

Sample config file

LogFile /var/log/apache2/logs/ap2-access.log
OutputDir /var/stats/webalizer/tools
Incremental  yes
IncrementalName access.current
HostName ap2.example.com

Apache config to serve stats

Alias /stats/ /etc/apache2/stats/forum/

Create .htaccess to add password protection

AuthType Basic
AuthName Statistics
AuthUserFile /etc/apache2/stats/.htpasswd
Require valid-user

order deny,allow
allow from 192.168.1.2
deny from all