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

今天在做LNMP的时候，启动nginx服务，无法开启，导致网页打不开。把服务从起一下发现提示错误如下：

Starting 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()

问题描述：地址已被使用。可能nginx服务卡死了，导致端口占用，出现此错误。

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

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
nginx 3274 root 6u IPv4 10664 0t0 TCP *:http (LISTEN)
nginx 3547 nginx 6u IPv4 10664 0t0 TCP *:http (LISTEN)

发现是nginx程序，所以我们把nginx服务k掉，重新启动服务。。命令如下:

kill -9 3274

kill -9 3547

service nginx start

Starting nginx: [ OK ]

OK了，服务成功启动！~~

时间： 2025-01-10 21:16:54

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