linux 下80端口被占用

先看报错：
[root@localhost ~]# 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()
办理办法

• netstat -ntlp|grep 80 #发现80端口被一个httpd服务占用了
  

• kill -9 1890 #杀了2次，每次都会重新启动一个进程 --杀不掉！！
  

• service httpd.service stop #于是乎停掉这个服务（杀手锏）
  

• 小样，这回起不来了吧
  

• 于是重启nginx --ok，大功告成！
  

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