monit

http://www.glidenote.com/archives/81
http://www.usupi.org/sysad/158.html
http://labs.unoh.net/2008/03/_monit.html
http://mmonit.com/monit/documentation/monit.html#examples
http://mmonit.com/wiki/Monit/ConfigurationExamples#cron
http://sakura.off-soft.net/centos/monit_apache_2.html

# grep -v "^#" /etc/monit/monitrc
set daemon  60           # check services intervals
with start delay 240  # optional: delay the first check by 4-minutes (by 
set logfile syslog facility log_daemon                       
set mailserver smtp.gmail.com port 587 username "username@gmail.com" password "password" using tlsv1
set alert mailalert@example.com not { instance }
include /etc/monit/conf.d/*.conf
# diff -uNr /etc/inittab.bak /etc/inittab
--- /etc/inittab.bak     2012-04-01 22:20:31.420619464 +0900
+++ /etc/inittab        2012-04-01 22:35:10.099112439 +0900
@@ -67,3 +67,4 @@
 #
 #T3:23:respawn:/sbin/mgetty -x0 -s 57600 ttyS3
 
+mo:2345:respawn:/usr/sbin/monit -Ic /etc/monit/monitrc
# cat /etc/monit/conf.d/base.conf 
set init
# cat /etc/monit/conf.d/sshd.conf 
check process sshd with pidfile /var/run/sshd.pid
start program "/etc/init.d/ssh start"
stop program "/etc/init.d/ssh stop"
if failed port 22 protocol ssh then restart
if 5 restarts within 5 cycles then timeout
# cat /etc/monit/conf.d/vnc4server.conf
check process vnc4server matching Xvnc4
start program "/bin/su user -c 'vnc4server :1  -geometry 1200x768 -localhost'"
stop program "/bin/su user -c 'vnc4server -kill :1'"
# /sbin/telinit q

めも
ステータス確認系のコマンドが動作しないようだが、詳細未調査
http://d.hatena.ne.jp/tetsuyai/20110416/1302945778

# monit status
monit: error connecting to the monit daemon