MRTG-WEBSERVER(1)                    mrtg                    MRTG-WEBSERVER(1)



NNAAMMEE
       mrtg-webserver - hints for web server configuration

SSYYNNOOPPSSIISS
       If you want people to actually see the results of your network monitor-
       ing efforts you will need a webserver.

       This document lists some configuration hints for webservers. Contribu-
       tions welcome.

AAPPAACCHHEE
       CCoonnffiigguurriinngg mmoodd__eexxppiirree

       A big issue with mrtg monitoring data is the expiry time.  All these
       nice graphs you can create are only valid for a short time.  If you do
       not take special action some webbrowsers will not notice this and you
       may end up with people seeing old data because of caching issues.

       The apache module mod_expire allows you to setup special expiry proper-
       ties for individual file.

       Here is an example for how this may look for an mrtg web directory.
       The configuration directives can be stored into a _._h_t_a_c_c_e_s_s file.

        ############################################################
        # Example .htaccess for use with apache-1.2 and mod_expire.
        # (mod_expire come with apache-1.2 but you have to explicitly
        # activate it when compiling the httpd ...)
        #############################################################
        #
        <Files "*-day.png">
        ExpiresActive On                  # enable expirations
        # five minutes
        ExpiresDefault M300
        </Files>

        <Files "*-week.png">
        ExpiresActive On
        ExpiresDefault M1800
        </Files>

        <Files "*-month.png">
        ExpiresActive On
        ExpiresDefault M7200
        </Files>

        <Files "*-year.png">
        ExpiresActive On
        ExpiresDefault M86400
        </Files>

        <Files "*.html">
        ExpiresActive On
        ExpiresDefault M300
        </Files>

        # index.html is not automatically generated
        <Files "index.html">
        ExpiresActive Off
        </Files>

AAUUTTHHOORR
       Unknown



2.16.2                            2008-05-16                 MRTG-WEBSERVER(1)
