Nagios Support Forum

./configure --with-nagios-user=nagios --with-nagios-group=nagios
make
make install
chkconfig --add nagios
chkconfig --level 35 nagios on
chkconfig --add httpd
chkconfig --level 35 httpd on

Whoops!

Error: Could not read host and service status information!

The most common cause of this error message (especially for new users), is the fact that Nagios is not actually running. If Nagios is indeed not running, this is a normal error message. It simply indicates that the CGIs could not obtain the current status of hosts and services that are being monitored. If you've just installed things, make sure you read the documentation on starting Nagios.

Some other things you should check in order to resolve this error include:

Check the Nagios log file for messages relating to startup or status data errors.
Always verify configuration options using the -v command-line option before starting or restarting Nagios!
Make sure you read the documentation on installing, configuring and running Nagios thoroughly before continuing. If all else fails, try sending a message to one of the mailing lists. More information can be found at http://www.nagios.org.

The most common cause of this error message (especially for new users), is the fact that Nagios is not actually running

[root@mpnagios ~]# service nagios stop
nagios is stopped
[root@mpnagios ~]# killall -9 nagios
nagios: no process killed

[root@mpnagios ~]# service nagios start
nagios is stopped

Nagios Core 4.0.1
Copyright (c) 2009-present Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 10-15-2013
License: GPL

Website: http://www.nagios.org
Reading configuration data...
Read main config file okay...
Read object config files okay...

Running pre-flight check on configuration data...

Checking objects...
Checked 12 services.
Warning: Host 'Router001' has no default contacts or contactgroups defined!
Checked 3 hosts.
Checked 3 host groups.
Checked 0 service groups.
Checked 1 contacts.
Checked 1 contact groups.
Checked 25 commands.
Checked 5 time periods.
Checked 0 host escalations.
Checked 0 service escalations.
Checking for circular paths...
Checked 3 hosts
Checked 0 service dependencies
Checked 0 host dependencies
Checked 5 timeperiods
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 1
Total Errors: 0

Things look okay - No serious problems were detected during the pre-flight check
Object precache file created:
/usr/local/nagios/var/objects.precache
[root@mpnagios ~]# ll -la /usr/local/nagios/sbin/
total 4024
drwxrwxr-x. 2 nagios nagios 4096 Oct 22 18:58 .
drwxr-xr-x. 8 root root 4096 Oct 22 18:59 ..
-rwxrwxr-x. 1 nagios nagios 288008 Oct 22 18:58 avail.cgi
-rwxrwxr-x. 1 nagios nagios 285064 Oct 22 18:58 cmd.cgi
-rwxrwxr-x. 1 nagios nagios 255176 Oct 22 18:58 config.cgi
-rwxrwxr-x. 1 nagios nagios 300264 Oct 22 18:58 extinfo.cgi
-rwxrwxr-x. 1 nagios nagios 255432 Oct 22 18:58 histogram.cgi
-rwxrwxr-x. 1 nagios nagios 230632 Oct 22 18:58 history.cgi
-rwxrwxr-x. 1 nagios nagios 230600 Oct 22 18:58 notifications.cgi
-rwxrwxr-x. 1 nagios nagios 226472 Oct 22 18:58 outages.cgi
-rwxrwxr-x. 1 nagios nagios 226760 Oct 22 18:58 showlog.cgi
-rwxrwxr-x. 1 nagios nagios 296200 Oct 22 18:58 status.cgi
-rwxrwxr-x. 1 nagios nagios 248712 Oct 22 18:58 statusmap.cgi
-rwxrwxr-x. 1 nagios nagios 242952 Oct 22 18:58 statuswml.cgi
-rwxrwxr-x. 1 nagios nagios 230664 Oct 22 18:58 statuswrl.cgi
-rwxrwxr-x. 1 nagios nagios 251144 Oct 22 18:58 summary.cgi
-rwxrwxr-x. 1 nagios nagios 242952 Oct 22 18:58 tac.cgi
-rwxrwxr-x. 1 nagios nagios 259528 Oct 22 18:58 trends.cgi
[root@mpnagios ~]#