Nagios Support Forum

i just installed nagios 4.1.1 on debian 8 (jessie).
the nagios homepage (http://localhost/nagios) reports 'not running' (w/ red 'x')
immediately under the 'nagios core' title.
however, 'ps' shows 8 nagios procs running (below).
in addition, any item i select from the menu on the left (hosts, services...), downloads the cgi and doesn't open the requested page.
(i didn't populate my config yet, so the only host is localhost.)
apache2 is also running a handful of procs.

ps auxwww|grep nagios
nagios 4018 0.0 0.2 9808 2324 ? Ss 14:46 0:01 /usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg
nagios 4019 0.0 0.1 3476 1728 ? S 14:46 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4020 0.0 0.1 3476 1800 ? S 14:46 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4021 0.0 0.1 3476 1884 ? S 14:46 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4022 0.0 0.1 3476 1884 ? S 14:46 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4023 0.0 0.1 3476 1884 ? S 14:46 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4024 0.0 0.1 3476 1884 ? S 14:46 0:00 /usr/local/nagios/bin/nagios --worker /usr/local/nagios/var/rw/nagios.qh
nagios 4025 0.0 0.1 9292 1236 ? S 14:46 0:00 /usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg
root 4698 0.0 0.1 4180 1876 pts/1 S+ 15:39 0:00 grep nagios

How did you install core?

installed w/ instructions from:
https://assets.nagios.com/downloads/nag ... Source.pdf

-ams

Try restarting Nagios:
https://assets.nagios.com/downloads/nag ... tstop.html

duhhh-
of course i tried restarting nagios (and apache2) , and tried a dozen other things before posting this.
i restarted apache because the 2nd problem seems more apache related.

Are you running a GUI at all in debian?

I'm going to work on replicating this in the mean time with a fresh Debian 8.2 install.

no gui.
tnx
ams

interesting that no nagios.lock exists even though nagios is running as per the 'ps' output earlier in the thread.
grep nagios.lock nagios.cfg
lock_file=/usr/local/nagios/var/nagios.lock

ls -ld ../var
drwxrwsr-x 5 nagios nagios 4096 Jan 23 14:27 ../var

ls ../var
archives nagios.log objects.cache retention.dat rw spool status.dat

i also scanned the entire disk for nagios.lock.
nada. nothing there.

just as an experiment, i created the file manually.
still gives 'not running' even though it clearly is running.

ah! the 'not running' disappeared after some minutes.
on reload of the page it reappears.
cgi problem exists independent of the 'not running'.

-ams

Can you take a look at some of the logs after you see the error?

problem solved.
fixed some ownerships and permissions.
this is what i originally suspected.
just took some time to pinpoint it.
tnx
ams