nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)

今天在测试Nginx功能的时候，出现问题如下：

nginx: [emerg] bind() to 0.0.0.0:443 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:8083 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:7091 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:7092 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:8081 failed (98: Address already in use)
nginx: [emerg] bind() to 0.0.0.0:1935 failed (98: Address already in use)

原因是：

在测试过程中，关闭过rtmp的端口号，./kill -9 pid(rtmp:1935)

结果在启动 Nginx时，./nginx -c /usr/local/nginx/conf/nginx.conf

出现上述错误

结果过程如下：

首先用lsof -i:80看下80端口被什么程序占用。lsof返回结果如下：

[root@localhost sbin]# lsof -i:80
COMMAND   PID USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
nginx   63170 root    9u  IPv4 14243472      0t0  TCP *:http (LISTEN)

关闭进程：kill -9  63170

重新启动Nginx：[root@localhost sbin]# ./nginx -c /usr/local/nginx/conf/nginx.conf

问题解决