# Monit 簡介及建置教程
# Monit 簡介 官網
Monit 是一個常用來管理監控 Linux 系統的小工具，經過簡單的設定就可以在系統異常時採取行動，包括警報、重啟、執行腳本等等。Monit 能夠進行自動維護，修復，並在錯誤情況下運行有意義的因果操作。M/Monit 則是與其配套的網頁監控服務。
# 部屬
# 安裝
| apt-get update && apt-get install -y monit |
# 指令
設定檔檢測:
monit -t
重新加載:
monit reload
開啟:
service monit start
關閉:
service monit stop
重啟:
service monit restart
# 配置
官網文件: https://mmonit.com/monit/documentation/monit.html
# 配置文件位置
/etc/monit/monitrc
# 檢測周期
| set daemon 60 |
| with start delay 60 |
# 警報 mail smtp
| set mailserver smtp.gmail.com port 587 |
| username "username" password "password" |
| using tls |
# 警報 mail 格式
| set mail-format { |
| from: Monit Alert <monit@$HOST> |
| subject: 通知 專題伺服器 -- $EVENT $SERVICE |
| message: |
| $SERVICE => $EVENT |
| 日期： $DATE |
| 動作： $ACTION |
| 主機： $HOST |
| 說明： $DESCRIPTION |
| } |
# 連接 M/Monit
| set mmonit http://monit:monit@127.0.0.1:80/collector |
| with timeout 30 seconds |
| and register without credentials |
# 系統效能監控
| check system $HOST |
| if loadavg (1min) per core > 2 for 5 cycles then alert |
| if loadavg (5min) per core > 1.5 for 10 cycles then alert |
| if cpu usage > 75% for 5 cycles then alert |
| if memory usage > 80% for 1 cycles then alert |
# 系統效能監控
| check file bashrc with path /etc/bash.bashrc |
| if changed checksum then alert |
# 單一檔案 hash 監控
| check file passwd with path /etc/passwd |
| if changed checksum then alert |
# 目錄修改時間監控
| check directory ssh_folder with path /root/.ssh |
| if changed timestamp then alert |
# 檔案系統讀寫速度監控
| check filesystem root_directory PATH / |
| if write rate > 50 MB/s for 10 cycles then alert |
| if read rate > 50 MB/s for 10 cycles then alert |
# 網路介面卡上下行速度監控
| check network enp3s0 with interface enp3s0 |
| if download > 20 MB/s for 10 cycles then alert |
| if upload > 20 MB/s for 10 cycles then alert |
