Analyse Your Web Server in 10 Minutes
Analog Install and Setup
James Andrews
Monday, August 23, 1999 05:42:20 PM
Find the name 'analog' in your package manager and install it.
Redhat calls it "analog-3.0-1.i386.html", Debian "analog"
See our article on package
managers for more details.
Tweaking the configuration
Analog has many many many configuration options for squeezing all
kinds of bizarre statistics out of your log server files. But the clock
is ticking, so we won't get into that now. Here is a simple sample file
to get you started
DNS WRITE
DNSFILE /tmp/dnsfile.txt
HOSTNAME "LinuxPlanet"
HOSTEXCLUDE mordell.ex.ac.uk
OUTFILE /home/james/public_html/outputfile.html
The first two lines are to speed up host name lookup, and the HOSTNAME
is part of the titles used to pretty up the report. HOSTEXCLUDE is
used to ignore hosts we aren't interested in, and OUTFILE is where the
report output goes. The report is generated in html format, so load it
into your browser.
Help! The graphics look wrong
The images in the reports should look ok. The package installer will
put them in the right places for analog to pick them up. However, if they
don't appear, then look at the URLs. (In Debian Linux the images
are held at /usr/doc/analog/images/, but the html says /doc/analog/images.
This is because of Debian policy: the /usr/doc tree is supposed to be
web accessible.) To get back to the point ..to fix this problem, look
at your web server configuration files. These are in /etc/apache or
/var/lib/httpd. Edit srm.conf and http.conf. One will have a
section with Aliases; the exact file varies with the version of Apache.
Add an alias like:
Alias /doc/analog/images/ /usr/doc/analog/images/
and restart the server with the command apachectl graceful
Then it should be fine. If it isn't then you are accessing the server
report with a file:/ url, use http:// instead and all will be well.
Making the report run every day
Next you want the report to run every day; type in crontab -e at
your shell prompt and
then add this line to the file:
0 3 * * * /usr/bin/analog +g/home/james/analog.ini
This means run the command given at 3:00 a.m. daily.
See the tutorial "Time for
Linux", that explains time-keeping and scheduling jobs on Linux, for
more details.
Next: If You Have More Time »
