使用 Monit 監控資源

安裝

apt install monit

設定

cp /etc/monit/monitrc /etc/monit/monitrc.bak

vi  /etc/monit/monitrc 

set httpd port 2812
    use address 0.0.0.0  # 只允全部訪問
    allow localhost      # 允許 localhost 訪問
    allow yourip         # 允許 指定IP 訪問
    allow admin:monit

# NGINX
check process nginx with pidfile /var/run/nginx.pid
  start program = "/bin/systemctl start nginx"
  stop program  = "/bin/systemctl stop nginx"
    if failed port 443 then restart
    if 5 restarts within 5 cycles then timeout

# PHP 7.4-FPM
check process php7.4-fpm with pidfile /run/php/php7.4-fpm.pid
    start program = "/etc/init.d/php7.4-fpm start"
    stop program = "/etc/init.d/php7.4-fpm stop"
    if failed unixsocket /var/run/php/php7.4-fpm.sock then restart
    if 5 restarts within 5 cycles then timeout

# MySQL
check process mysql with pidfile /var/lib/mysql/zfun-server.pid
    start program = "/etc/init.d/mysql start"
    stop program = "/etc/init.d/mysql stop"
    if failed host localhost port 3306 protocol mysql then restart
    if 5 restarts within 5 cycles then timeout

http://yourip:2812 就能進入監控

由於此功能的權限很大，可以做到關閉及啟用的功能，使用時務必要把防火牆等限制建置好