ANALYZE
APACHE LOGS WITH ANALOG
If you're looking for a useful log analysis program, check out Analog.
This powerful, fast tool creates Web pages based on the analysis of
Apache log files.
http://www.analog.cx//
If your Linux vendor doesn't provide binary packages, you may have
to download and install the program from source. After installation,
create a configuration file that tells Analog what logs to read and
where to place the output.
If installed via RPM or DEB, Analog will typically place a default
configuration file in /etc/analog.cfg. Make a copy of this file, and
customize it to fit your needs. Here are the essentials you need to
set:
LOGFILE /var/log/httpd/access_log
HOSTNAME www.myhost.com
HOSTURL http://www.myhost.com
OUTFILE /var/www/html/logs/report.html
CHARTDIR /logs/images
LOCALCHARTDIR /var/www/html/logs/images
This tells Analog which log file to analyze, provides information
on the host it's analyzing (i.e., hostname and URL), and indicates
where to place the report file. In this case, the resulting URL would
be:
http://www.mysite.com/logs/report.html
It also
tells Analog where to write the image files for the charts that it
creates.
Analog creates a very comprehensive output that includes a number
of statistics, such as monthly page views, daily and hourly summaries
of page requests, most used search requests to reach the site, and
more.
For an up-to-date report, run Analog every day by using the following:
# analog -G +g/etc/myanalog.cfg
This assumes your customized configuration file is /etc/myanalog.cfg,
and it tells Analog to use the specified configuration file instead
of the default configuration file. This comes in handy if you've configured
Apache to create log files for different virtual hosts and want a
different report for each virtual host.
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