|
Long ago a guy gave me the following but I
never got to try it. I would love to hear what actually works. Maybe
a howto Configuration doc on slave server... Failover Configuration: Master Server (10.1.1.3): Configure NSCA: Install
Libmcrypt: tar
-xzvf libmcrypt-2.5.7.tar.gz cd
libmcrypt-2.5.7 ./configure make make
install Update
system to find the library: vi
/etc/ld.so.conf add
the following line: /usr/local/lib/ run
ldconfig: /sbin/ldconfig tar -xzvf nsca-2.4.tar.gz cd nsca-2.4 ./configure --prefix=/usr/local/nagios
--with-nsca-user=nagios --with-nsca-grp=nagios output
should be the following: General Options: ------------------------- NSCA
port: 5667 NSCA
user: nagios NSCA
group: nagios make all cp src/nsca /usr/local/nagios/bin/ cp nsca.cfg /usr/local/nagios/etc/ vi /usr/local/nagios/etc/nsca.cfg modify
the following: allowed_hosts=10.1.1.3 password=password decryption_method=2 start the service /usr/local/nagios/bin/nsca
-c /usr/local/nagios/etc/nsca.cfg Slave Server (10.1.1.4): Disable the following in nagios.cfg: retain_state_information=0 execute_service_checks=0 enable_notifications=0 Enable the the following in nagios.cfg: check_external_commands=1 retention_update_interval=30 use_retained_program_state=0 Create enable/disable service checks
script: vi /usr/local/nagios/libexec/eventhandlers/disable_active_service_checks #!/bin/sh echocmd="/bin/echo" CommandFile="/usr/local/nagios/var/rw/nagios.cmd" # get the current date/time in seconds
since UNIX epoch datetime=`date +%s` # create the command line to add to the
command file cmdline="[$datetime]
STOP_EXECUTING_SVC_CHECKS" # append the command to the end of the
command file `$echocmd $cmdline >> $CommandFile` write the file chown nagios:nagios
/usr/local/nagios/libexec/eventhandlers/disable_active_service_checks vi
/usr/local/nagios/libexec/eventhandlers/enable_active_service_checks #!/bin/sh echocmd="/bin/echo" CommandFile="/usr/local/nagios/var/rw/nagios.cmd" # get the current date/time in seconds
since UNIX epoch datetime=`date +%s` # create the command line to add to the
command file cmdline="[$datetime]
START_EXECUTING_SVC_CHECKS" # append the command to the end of the
command file `$echocmd $cmdline >> $CommandFile` write the file chown nagios:nagios
/usr/local/nagios/libexec/eventhandlers/enable_active_service_checks Create enable/disable notifications
scripts: vi
/usr/local/nagios/libexec/eventhandlers/enable_notifications #!/bin/sh echocmd="/bin/echo" CommandFile="/usr/local/nagios/var/rw/nagios.cmd" # get the current date/time in seconds
since UNIX epoch datetime=`date +%s` # create the command line to add to the
command file cmdline="[$datetime]
ENABLE_NOTIFICATIONS;$datetime" # append the command to the end of the
command file `$echocmd $cmdline >> $CommandFile` write the file chown nagios:nagios
/usr/local/nagios/libexec/eventhandlers/enable_notifications vi
/usr/local/nagios/libexec/eventhandlers/disable_notifications #!/bin/sh echocmd="/bin/echo" CommandFile="/usr/local/nagios/var/rw/nagios.cmd" # get the current date/time in seconds
since UNIX epoch datetime=`date +%s` # create the command line to add to the
command file cmdline="[$datetime]
DISABLE_NOTIFICATIONS;$datetime" # append the command to the end of the
command file `$echocmd $cmdline >> $CommandFile` write the file chown nagios:nagios
/usr/local/nagios/libexec/eventhandlers/disable_notifications Create monitoring enable script: vi
/usr/local/nagios/libexec/eventhandlers/check_master_host_enable #!/bin/sh RES=`/usr/local/nagios/libexec/check_nrpe
-H 10.1.1.3 -c check_nagios_proc`
STATUS=$?
if [ $STATUS != 0 ]; then
sleep 35 RES=`/usr/local/nagios/libexec/check_nrpe
-H 10.1.1.3 -c check_nagios_proc`
STATUS=$?
if [ $STATUS != 0 ]; then
echo "Activate Sentinel Local : RES=$RES ; Status=$STATUS" /usr/local/nagios/libexec/eventhandlers/enable_active_service_checks
sleep 5 /usr/local/nagios/libexec/eventhandlers/enable_notifications fi fi exit write the file Setup a cron job to call the above script
every 1 min vi
/usr/local/nagios/libexec/eventhandlers/check_master_host_disable #!/bin/sh RES=`/usr/local/nagios/libexec/check_nrpe
-H 10.1.1.3 -c check_nagios_proc`
STATUS=$?
if [ $STATUS != 1 ]; then
sleep 35 RES=`/usr/local/nagios/libexec/check_nrpe
-H 10.1.1.3 -c check_nagios_proc`
STATUS=$?
if [ $STATUS != 1 ]; then
echo "De-activate Sentinel Local : RES=$RES ; Status=$STATUS" /usr/local/nagios/libexec/eventhandlers/disable_active_service_checks
sleep 5 /usr/local/nagios/libexec/eventhandlers/disable_notifications fi fi exit write the file make the files executable: chmod 755
/usr/local/nagios/libexec/eventhandlers/* Setup a cron job to call the above script
every 1 minute. From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Lehman, John Question for everyone. I have 2 nagios servers and one is active
all the time and the other is standby. I have read the documentation on
implementing failover but I am finding it difficult implementing. Is there anyone that could give me sample
scripts which “on the standby host” would “check the nagios master” and if the
nagios master were down then the standby would become the active host? I am losing my mind trying to implement from
the documentation and I would appreciate any
advice on this one. John |
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