我正在尝试使用 monit 来监控我的 squid 服务器。我使用 apt-get 在 raspbian stretch 上安装了 squid 服务器。squid 服务安装在 /etc/init.d/squid 下，我检查了 /var/run/squid.pid 下的 PID 文件是否存在。
当我运行 sudo monit start 时仍然得到：
There is no service named "squid"
我以 root 身份编译 monit 并将其添加到 systemd 中，如下所示： https://mmonit.com/wiki/Monit/Systemd
这是我在 /etc/monitrc 中创建的 monit 文件
set daemon 60
set logfile syslog facility log_daemon
set idfile /tmp/monit.id
set statefile /tmp/monit.state
set mailserver localhost
set alert [email protected]
set httpd port 2812 and
#use address localhost # only accept connection from localhost
allow localhost # allow localhost to connect to the server and
allow admin:monit # require user 'admin' with password 'monit'
check process squid with pidfile /var/run/squid.pid
group proxy
start program = "/etc/init.d/squid start"
stop program = "/etc/init.d/squid stop"
if failed host localhost port 3128
send "GET /monit-check HTTP/1.0\r\n\r\n"
expect "HTTP/[0-9\.]{3} 400 .*\r\n"
for 5 cycles then restart
输出自service squid status：
● squid.service - LSB: Squid HTTP Proxy version 3.x
Loaded: loaded (/etc/init.d/squid; generated; vendor preset: enabled)
Active: active (running) since Tue 2018-01-16 12:23:25 UTC; 2h 1min ago
Docs: man:systemd-sysv-generator(8)
Process: 24781 ExecStop=/etc/init.d/squid stop (code=exited, status=0/SUCCESS)
Process: 24928 ExecStart=/etc/init.d/squid start (code=exited, status=0/SUCCESS)
Main PID: 24970 (squid)
CPU: 3.718s
CGroup: /system.slice/squid.service
├─24968 /usr/sbin/squid -YC -f /etc/squid/squid.conf
├─24970 (squid-1) -YC -f /etc/squid/squid.conf
├─24971 (logfile-daemon) /var/log/squid/access.log
├─24984 (pinger)
└─25378 (basic_ncsa_auth) /etc/squid/squid_passwd
Jan 16 12:23:24 raspberrypi systemd[1]: Starting LSB: Squid HTTP Proxy version 3.x...
Jan 16 12:23:25 raspberrypi squid[24968]: Squid Parent: will start 1 kids
Jan 16 12:23:25 raspberrypi squid[24968]: Squid Parent: (squid-1) process 24970 started
Jan 16 12:23:25 raspberrypi squid[24928]: Starting Squid HTTP Proxy: squid.
Jan 16 12:23:25 raspberrypi systemd[1]: squid.service: PID file /var/run/squid.pid not readable (yet?) after start: No sJan 16 12:23:25 raspberrypi systemd[1]: squid.service: Supervising process 24970 which is not our child. We'll most likeJan 16 12:23:25 raspberrypi systemd[1]: Started LSB: Squid HTTP Proxy version 3.x.