nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address already in use)错误

一通操作下来，重启nginx的时候报错，再重启系统后，nginx直接不启动了，使用start时同样报错。

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()

看这意思大概时端口被占用了。

查看端口

netstat -anp |grep 80

显示有两个进程使用了80端口，且都是nginx。

结束进程

kill 5139

直接结束进程，再次启动nginx：

nginx -s start