Steps to take (some are very specific for me and will not work for everyone):
- make sure ndo2db is working on the central poller
- install and configure nagios on a satellite
- synchronize/add plugins images and mib files on this satellite
rsync -avu /usr/local/nagios/libexec/360viewpoint/
nagios@{IP_ADDRESS_SATELLITE}:/usr/local/nagios/libexec/360viewpoint
rsync -avu /usr/local/nagios/share/images/ nagios@{IP_ADDRESS_SATELLITE}:/usr/local/nagios/share/images
rsync -avu /usr/share/snmp/mibs/ root@{IP_ADDRESS_SATELLITE}:/usr/share/snmp/mibs - on the satellite copy the created x86 plugins from libexec to 360viewpoint directory (only when plugins copied from Centreon server are 64_x86 bit and you run on x86)
/bin/cp/usr/local/nagios/libexec/check*/usr/local/nagios/libexec/360viewpoint
- In Centreon add a satellite: configuration > centreon
- In Centreon add the satellite as a host and add services
- In Centreon add ndomod confg file for satellite: configuration > centreon > ndomod.cfg
instance_name=poller01
output_type=tcpsocket
output=10.0.2.19
tcp_port=5669
output_buffer_items=5000
file_rotation_interval=14400
file_rotation_timeout=60
reconnect_interval=15
reconnect_warning_interval=900
data_processing_options=-1
config_output_options=3 - On Centreon make sure file /var/lib/centreon/centreon.cmd is writable by nagios and apache:
chown nagios:nagcmd /var/lib/centreon - On Centreon generate ssh key file:
su - nagios
ssh-keygen
ssh-copy-id -i ~/.ssh/id_rsa.pub nagios@{IP_ADDRESS_SATELLITE}
ssh {IP_ADDRESS}
exit
exit
- On satellite configure sudo (using visudo) in order to allow the central server to manage the Nagios daemon on the satellite monitor
nagios ALL=NOPASSWD: /etc/init.d/nagios restart
nagios ALL=NOPASSWD: /etc/init.d/nagios stop
nagios ALL=NOPASSWD: /etc/init.d/nagios start
nagios ALL=NOPASSWD: /etc/init.d/nagios reload
nagios ALL=NOPASSWD: /usr/sbin/nagiostats
nagios ALL=NOPASSWD: /usr/sbin/nagios * - On satellite download, Compile and Install NDOMOD
cd /tmp
wget http://sourceforge.net/projects/nagios/files/ndoutils-1.x/ndoutils-1.4b9/ndoutils-1.4b9.tar.gz/download
tar xvzf ndoutils-1.4b9.tar.gz
cd ndoutils-1.4b9
./configure --codefix=/usr/local/nagios/ --enable-mysql --disable-pgsql --with-ndo2db-user=nagios --with-ndo2db-group=nagios
make
cp ./src/ndomod-3x.o /usr/local/nagios/bin/ndomod.o
chmod 774 /usr/local/nagios/bin/ndo*
chown nagios:nagios /usr/local/nagios/bin/ndo*
cp config/ndo* /usr/local/nagios/etc/ - In Centreon go and activate configuration of the Central Poller and the Satellite.
Check logs on satellite:# tail -f /usr/local/nagios/var/nagios.log
[1329614509] Nagios 3.3.1 starting... (PID=12125) [1329614509] Local time is Sun Feb 19 02:21:49 CET 2012 [1329614509] LOG VERSION: 2.0
[1329614509] ndomod: NDOMOD 1.4b9 (10-27-2009) Copyright (c) 2009 Nagios Core Development Team and Community Contributors
[1329614509] ndomod: Successfully connected to data sink. 0 queued items to flush.
[1329614509] Event broker module '/usr/local/nagios/bin/ndomod.o' initialized successfully.
[1329614509] Finished daemonizing... (New PID=12126)# tail -f /usr/local/centreon/log/centcore.log
24/2/2012 11:57:44 - Start: Send config files on poller 2
24/2/2012 11:57:44 - End: Send config files on poller 2
24/2/2012 11:57:44 - Start: Send Centreon Broker config files on poller 2
24/2/2012 11:57:44 - End: Send Centreon Broker config files on poller 2
24/2/2012 11:57:45 - Init Script : 'sudo /etc/init.d/nagios restart' On poller xxx.xxx.xxx.xxx (2)
24/2/2012 11:57:45 - NAGIOS : Running configuration check...done.
24/2/2012 11:57:45 - NAGIOS : Stopping nagios: done.
24/2/2012 11:57:45 - NAGIOS : Starting nagios: done.
- On the satellite (because of a centreon bug?):
mkdir /usr/local/nagios/etc/serviceext/
chown nagios:nagcmd /usr/local/nagios/etc/serviceext/
- On the satellite (depending on the configuration of the poller in Centreon):
mkdir /etc/centreon-broker
chown root:nagios /etc/centreon-broker
chmod 775 /etc/centreon-broker
mkdir -p /etc/centreon/broker
chown -R root:nagios /etc/centreon
chmod -R 775 /etc/centreon - On the satellite (because centcore dumps the files in the serviceext directory and not etc
/etc/init.d/nagios
NagiosCfgFile=${prefix}/etc/nagios.cfg
to
NagiosCfgFile=${prefix}/etc/serviceext/nagios.cfg
- Create a blank starting webpage on the root of the webserver.
touch /var/www/html/index.html
- Install CPAN module to prevent error with plugins like:
#perl -MCPAN -e shell
cpan> install Bundle::CPAN
cpan[1]> reload cpan
cpan[1]> reload index
cpan[1]> install Net::SNMP
cpan[1]> install Getopt::Long
cpan[1]> install Config::IniFiles - Create SSH tunnel for NDO traffic actions on Satellite
On Satellite as root:ssh-keygen
ssh-copy-id -i /root/.ssh/id_rsa.pub nagios@{IP_ADDRESS_CENTREON}
ssh nagios@{IP_ADDRESS_CENTREON}
yum -y install autosshMake sure the ndomod.cfg is configured to connect to 127.0.0.1 in stead of
{IP_ADDRESS_CENTREON}Add the following lines to
/etc/ssh/ssh_config:Host poller01
Hostname {IP_ADDRESS_CENTREON}
User nagios
CheckHostIP no
LocalForward 5669 127.0.0.1:5669
#LocalForward 514 127.0.0.1:514
Compression yesAs root on the Centreon server:
yum -y install autosshAdd the following lines to /etc/ssh/ssh_config:
Host poller01
Hostname {IP_ADDRESS_CENTREON}
User nagios
CheckHostIP no
LocalForward 5669 127.0.0.1:5669
#LocalForward 514 127.0.0.1:514
Compression yesStart tunnel:
autossh -N poller01& ->> ???? does not work yet, figuring this outautossh -M 0 -q -f -N -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -L 5669:localhost:5669 nagios@{IP_ADDRESS_CENTREON}
Check Nagios log file:
[1329910951] ndomod: NDOMOD 1.4b9 (10-27-2009) Copyright (c) 2009 Nagios Core Development Team and Community Contributors
[1329910951] ndomod: Could not open data sink! I'll keep trying, but some output may get lost...
[1329910951] Event broker module '/usr/local/nagios/bin/ndomod.o' initialized successfully.
[1329910951] Warning: Service 'CPU' on host '360viewpoint_poll01' has no notification time period defined!
[1329910951] Warning: Service 'HTTP' on host '360viewpoint_poll01' has no notification time period defined!
[1329910951] Finished daemonizing... (New PID=27511)
[1329911863] ndomod: Still unable to connect to data sink. 162 items lost, 5000 queued items to flush.
[1329912775] ndomod: Still unable to connect to data sink. 4869 items lost, 5000 queued items to flush.
[1329912855] ndomod: Successfully connected to data sink. 5281 items lost, 5000 queued items to flush.
[1329912855] ndomod: Successfully flushed 5000 queued items to data sink.# ps ax | grep ssh | grep -v grep
1570 ? Ss 0:20 /usr/sbin/sshd
21905 ? Ss 0:00 sshd: nagios [priv]
21907 ? S 0:00 sshd: nagios
22271 ? Ss 0:00 sshd: nagios [priv]
22273 ? S 0:00 sshd: nagios
29128 ? S 0:00 /usr/bin/ssh -q -N -o ServerAliveInterval 60 -o ServerAliveCountMax 3 -L 11111:localhost:5669 nagios@{IP_ADDRESS_CENTREON}
30492 ? Ss 0:00 sshd: root@pts/0
Troubleshooting SSH
killall ssh
[1329915500] ndomod: Error writing to data sink! Some output may get lost...
[1329915500] ndomod: Please check remote ndo2db log, database connection or SSL Parameters
autossh -M 0 -q -f -N -o "ServerAliveInterval 60" -o "ServerAliveCountMax 3" -L 11111:localhost:5669 nagios@{IP_ADDRESS_CENTREON}
ps ax | grep ssh | grep -v grep
31288 ? Ss 0:00 autossh -M 0 -q -N -o ServerAliveInterval 60 -o ServerAliveCountMax 3 -L 11111:localhost:5669 nagios@{IP_ADDRESS_CENTREON}
31289 ? S 0:00 /usr/bin/ssh -q -N -o ServerAliveInterval 60 -o ServerAliveCountMax 3 -L 11111:localhost:5669 nagios@{IP_ADDRESS_CENTREON}
[1329915516] ndomod: Successfully reconnected to data sink! 0 items lost, 91 queued items to flush.
[1329915516] ndomod: Successfully flushed 91 queued items to data sink.
That’s it I hope.
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