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Gnanam
Asked: 2010-11-14 01:56:26 +0800 CST

How do I confirm whether a particular Apache configuration directive is set?

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How do I dynamically check/list a particular Apache configuration directive? I know that this can be checked manually from httpd.conf file, but is there any other way this can be confirmed/found from a running Apache server process?

For example: In my case, I was checking for KeepAlive configuration directive. I even checked with the command /usr/local/apache2/bin/apachectl -h, but I don't find it here.

apache-2.2 configuration keepalive keep-alive

1 Answers

  1. Best Answer

    It doesn't look like the apache binary itself will provide this info - from apache docs:

    -S

    Show the settings as parsed from the config file (currently only shows the virtualhost settings).

    There exist options to show modules loaded and compile-time flags used, but the above is the only option related to config settings. It seems even the CGI environment available, as well as info returned by mod_status does not contain the type of details you're looking for.

    However, all is not lost - if you're prepared to enable/install the apache module mod_info, you'll find it answers that and many more questions regarding apache configuration.

    Example output from the "Server Settings" page of the localhost/server-info location:

    Server Version: Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny4 with Suhosin-Patch mod_ssl/2.2.9 OpenSSL/0.9.8g mod_wsgi/2.5 Python/2.5.2

    Server Built: Nov 14 2009 20:23:49 Module Magic Number: 20051115:15
    Hostname/port: localhost:80
    Timeouts: connection: 300
    keep-alive: 300 MPM Name: Prefork
    MPM Information: Max Daemons: 150 Threaded: no Forked: yes Server Architecture: 32-bit Server Root: /etc/apache2 Config File: /etc/apache2/apache2.conf

    Note the keep-alive highlighted - if your intention is to script the check (although this could also be done against the config file itself), I think calling lynx --dump localhost/server-info could well assist in your endeavour (after a quick call to a2enmod info and an apache restart).

    HTH, and YMMV. :)

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