最後更新: 2024-07-18

介紹

它是 shell script 來

Install & Config

opkg install watchcat

Config

/usr/bin/watchcat.sh

config watchcat
  option mode 'ping_reboot'
  option period '5m'
  option interface 'wan'
  option pinghosts '8.8.8.8'
  option pingperiod '30s'
  option forcedelay '3m'

Enable Service

/etc/init.d/watchcat start

/etc/init.d/watchcat enable

Checking

ps | grep watchcat

/bin/sh /usr/bin/watchcat.sh ping_reboot 300 180 8.8.8.8 30 standard

Settings

interface

The interface to ping via, and also, in Restart Interface mode the one to restart.
If unset, it will use the default route's interface. (ip route)

Notes:

NIC 可能不是 eth0 / ens4 之類

e.g.

ping -I wan 8.8.8.8

ip link

3: wan@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000
    link/ether 5c:a6:e6:xx:xx:xx brd ff:ff:ff:ff:ff:ff

period

the way this parameter is used depends on the mode watchcat is in:

ping_reboot

the longest interval of time without a successful ping before the rule is activated

pingperiod

how often to ping

forcedelay

the amount of time to try a graceful reboot before a sysreq reboot is activated as a fail safe.