Февраль 5th, 2014 
Evgeniy Kamenev 1.Установка и настройка Monit
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# yum install monit |
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# cp /etc/monit.conf /etc/monit.conf~ |
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# nano /etc/monit.d/logging |
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set logfile /var/log/monit.log |
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# cat /etc/monit.conf | grep -v "#" |
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set daemon 60 with start delay 240 set logfile /var/log/monit.log set idfile /var/.monit.id set statefile /var/.monit.state set mailserver localhost set eventqueue set alert root@localhost not {instance} set httpd port 2812 and allow localhost allow 192.168.1.0/24 allow monit:password check system lb02.kamaok.org.ua if loadavg (1min) > 6 then alert if loadavg (5min) > 3 then alert if memory usage > 75% then alert if cpu usage (user) > 70% then alert if cpu usage (system) > 30% then alert if cpu usage (wait) > 20% then alert check file messages with path /var/log/messages if match 'OOM killed process' then alert if match 'temperature above threshold' then alert if match 'table full, dropping packet' then alert if match 'OOM killed process' for 2 cycles then exec "/bin/bash -c '/usr/bin/monit unmonitor messages && /bin/sleep 3600 && /usr/bin/monit monitor messages'" if match 'temperature above threshold' for 2 cycles then exec "/bin/bash -c '/usr/bin/monit unmonitor messages && /bin/sleep 3600 && /usr/bin/monit monitor messages'" if match 'table full, dropping packet' for 2 cycles then exec "/bin/bash -c '/usr/bin/monit unmonitor messages && /bin/sleep 3600 && /usr/bin/monit monitor messages'" set daemon 60 include /etc/monit.d/* |
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# nano /etc/monit.d/services.conf |
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# Мониторинг самого Monit-сервера #check process httpd with pidfile /var/run/httpd/httpd.pid #start program = "/etc/init.d/httpd start" #stop program = "/etc/init.d/httpd stop" #if failed host 127.0.0.1 port 80 protocol http then alert #if 5 restarts within 5 cycles then timeout #check process exim with pidfile /var/run/exim.pid #start program = "/etc/init.d/exim start" #stop program = "/etc/init.d/exim stop" #if 5 restarts within 5 cycles then timeout check process nginx with pidfile /var/run/nginx.pid start program = "/etc/init.d/nginx start" stop program = "/etc/init.d/nginx stop" if failed host 192.168.1.60 port 80 protocol http then alert if 3 restarts within 3 cycles then timeout check process named with pidfile /var/run/named.pid start program = "/etc/init.d/named start" stop program = "/etc/init.d/named stop" if 5 restarts within 5 cycles then timeout check process fail2ban with pidfile /var/run/fail2ban/fail2ban.pid start program = "/etc/init.d/fail2ban start" stop program = "/etc/init.d/fail2ban stop" if 5 restarts within 5 cycles then timeout #check process proftpd with pidfile /var/run/proftpd.pid #start program = "/etc/init.d/proftpd start" #stop program = "/etc/init.d/proftpd stop" #if failed port 21 protocol ftp then restart #if 5 restarts within 5 cycles then timeout check process dkim-milter with pidfile /var/run/dkim-milter/dkim-milter.pid start program = "/etc/init.d/dkim-milter start" stop program = "/etc/init.d/dkim-milter stop" if failed host 127.0.0.1 port 8891 then restart if 5 restarts within 5 cycles then timeout check process memcached with pidfile /var/run/memcached/memcached.pid start program = "/etc/init.d/memcached start" stop program = "/etc/init.d/memcached stop" if failed host 127.0.0.1 port 11211 then restart if 3 restarts within 5 cycles then timeout check process redis-server with pidfile /var/run/redis/redis.pid start program = "/etc/init.d/redis start" stop program = "/etc/init.d/redis stop" if failed host 127.0.0.1 port 6379 then restart if 3 restarts within 5 cycles then timeout check process rsyslog with pidfile /var/run/syslogd.pid start program = "/etc/init.d/rsyslog start" stop program = "/etc/init.d/rsyslog stop" if 3 restarts within 5 cycles then timeout check process php-fpm with pidfile /var/run/php-fpm/php-fpm.pid start program = "/etc/init.d/php-fpm start" stop program = "/etc/init.d/php-fpm stop" if failed unixsocket /var/run/php5-fpm.sock then restart #if failed host 127.0.0.1 port 9000 then restart if 3 restarts within 5 cycles then timeout check process atop with pidfile /var/run/atop.pid start program = "/etc/init.d/atop start" stop program = "/etc/init.d/atop stop" if 3 restarts within 5 cycles then timeout check process munin-node with pidfile /var/run/munin/munin-node.pid start program = "/etc/init.d/munin-node start" stop program = "/etc/init.d/munin-node stop" if failed host 127.0.0.1 port 4949 then restart if 3 restarts within 5 cycles then timeout check process openvpn with pidfile /var/run/openvpn/openvpn.pid start program = "/etc/init.d/openvpn start" stop program = "/etc/init.d/openvpn stop" if failed host 192.168.1.60 port 1194 then restart if 3 restarts within 5 cycles then timeout check process keepalived with pidfile /var/run/keepalived.pid start program = "/etc/init.d/keepalived start" #with timeout 60 seconds stop program = "/etc/init.d/keepalived stop" check process sshd with pidfile /var/run/sshd.pid start program = "/etc/init.d/sshd start" stop program = "/etc/init.d/sshd stop" if failed port 22 protocol ssh then restart if 5 restarts within 5 cycles then timeout check process dovecot with pidfile /var/run/dovecot/master.pid start program = "/etc/init.d/dovecot start" stop program = "/etc/init.d/dovecot stop" if 3 restarts within 3 cycles then timeout check process ntpd with pidfile /var/run/ntpd.pid start program = "/etc/init.d/ntpd start" stop program = "/etc/init.d/ntpd stop" if failed host 127.0.0.1 port 123 type udp then alert if 5 restarts within 5 cycles then timeout check process crond with pidfile /var/run/crond.pid start program = "/etc/init.d/crond start" stop program = "/etc/init.d/crond stop" check process postfix with pidfile /var/spool/postfix/pid/master.pid start program = "/etc/init.d/postfix start" stop program = "/etc/init.d/postfix stop" if failed port 25 protocol smtp then restart if 5 restarts within 5 cycles then timeout check process mmm_agentd with pidfile /var/run/mysql-mmm/mmm_agentd.pid start program = "/etc/init.d/mysql-mmm-agent start" stop program = "/etc/init.d/mysql-mmm-agent stop" if 5 restarts within 5 cycles then timeout check process mysql with pidfile /var/lib/mysql/lb02.kamaok.org.ua.pid start program = "/etc/init.d/mysql start" stop program = "/etc/init.d/mysql stop" if 5 restarts within 5 cycles then timeout #Подключения оповещения при недоступности определенных портов на различных удаленных серверах check host lb01.kamaok.org.ua with address 192.168.1.61 if failed icmp type echo count 5 with timeout 10 seconds then alert if failed port 22 protocol ssh then alert if failed port 4949 then alert if failed port 80 then alert if failed port 11211 then alert if failed port 25 then alert if failed port 143 then alert if failed port 11211 then alert check host app01.kamaok.org.ua with address 192.168.1.63 if failed icmp type echo count 5 with timeout 10 seconds then alert if failed port 22 protocol ssh then alert if failed port 4949 then alert if failed port 9989 then alert if failed port 80 protocol HTTP then alert if failed port 11211 then alert if failed port 25 then alert if failed port 8080 then alert check host app02.kamaok.org.ua with address 192.168.1.64 if failed icmp type echo count 5 with timeout 10 seconds then alert if failed port 22 protocol ssh then alert if failed port 4949 then alert if failed port 9989 then alert if failed port 80 protocol HTTP then alert if failed port 11211 then alert if failed port 25 then alert if failed port 8080 then alert alert root@localhost |
2.Проверка синтаксиса, запуск Monit-сервера, добавление в автозагрузку, просмотр логов Monit.
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# monit –t |
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# /etc/init.d/monit start |
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# chkconfig --level 2345 monit on |
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# tail -f /var/log/monit.log |
3.Доступ к Web-интерфейсу Monit
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http://<IP-address Monit-server>:2812 |
с логином и паролем согласно настройкам в /etc/monit.conf (monit password) Источник: http://mmonit.com/wiki/Monit/ConfigurationExamples#ssh http://habrahabr.ru/company/centosadmin/blog/266971/
Опубликовано в рубрике 
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