linux开启nginx 443端口无效,http – Nginx正在侦听端口80或443但没有响应

我的服务器工作得很好,直到几个小时前,当它以某种方式停止接听电话时,

我认为独角兽工作正常(卷曲localhost：3000作品 – 其中3000是独角兽的港口)

我跑了：

sudo netstat -anltp

Active Internet connections (servers and established)

Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name

tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 5664/mysqld

tcp 0 0 my.public.ip.address:80 0.0.0.0:* LISTEN 6825/nginx

tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 2737/sshd

tcp 0 0 0.0.0.0:3000 0.0.0.0:* LISTEN 6389/unicorn.rb -E

tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN 2934/master

tcp 0 0 my.public.ip.address:443 0.0.0.0:* LISTEN 6825/nginx

tcp 0 0 my.public.ip.address:22 a.different.ip.number:49372 ESTABLISHED 3433/sshd: user

tcp 0 232 my.public.ip.address:22 a.different.ip.number:49909 ESTABLISHED 6887/sshd: user

tcp6 0 0 :::22 :::* LISTEN 2737/sshd

tcp6 0 0 :::25 :::* LISTEN 2934/master