记一次Nginx启动时提示nginx: [emerg] still could not bind()

今儿一大早，天气好好，心情很好，寻思着更几篇文章，好家伙，网站先是打不开， 启动Nginx： /usr/local/nginx/sbin/nginx 时，提示以下内容：

[root@host ~]# /usr/local/nginx/sbin/nginx 
nginx: [emerg] bind() to 0.0.0.0:80 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 0.0.0.0:80 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 0.0.0.0:80 failed (98: Address already in use)
nginx: [emerg] still could not bind()

解决办法：

根据Nginx配置文件查看配置的端口（本文中使用的是80端口），然后根据端口查看端口占用情况

[root@v157040 ~]# netstat -ntlp|grep 80
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      1916/nginx: master  

使用kill命令杀死占用进程，之后重新启动Nginx

kill 1916

然后再次进入网站，提示我 “数据库连接出错”

重启数据库就OKK啦！！！