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Flimzy
Asked: 2015-01-13 17:33:32 +0800 CST

Starting lighttpd from nagios renders lighttpd broken

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I'm using Debian 7.8 (wheezy), and lighttpd 1.4.31 with nagios 3.4.1.

when I start lighttpd normally (as root), everything works as expected:

/etc/init.d/lighttpd start

However, when nagios starts lighttpd, everything issues a 404 error, and nothing is logged to /var/log/lighttpd/access.log or /var/log/lighttpd/error.log. I can mimic the same behavior manually by issuing the following command as root:

su - nagios -s /usr/bin/sudo /etc/init.d/lighttpd start

The nagios daemon has sudo access, as defined in /etc/sudoers.d/nagios:

nagios ALL=(root) NOPASSWD: /etc/init.d/lighttpd *

What am I missing? What's the difference between starting lighttpd directly as root, and doing it as the nagios user via sudo?

nagios

1 Answers

  1. Is nagios _actually_using_ sudo when it's starting lighttpd ?

    So, is it running 'sudo /etc/init.d/lighttpd start', or is it running '/etc/init.d/lighttpd start'.

    When not running from sudo... it won't run as root, and therefor won't work.

    If in doubt... edit the /etc/init.d/lighttpd script, and let it print it's user in the beginning with something like:

    id > /tmp/ligghtpd.start.$$

    And then inspect the /tmp/ligghtpd.start.* files.

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