ubuntu装宝塔nginx日志一直有报错

ubuntu14.04   nginx1.12，nginx错误日志中一直有下面这类大量的报错，但是nginx使用时正常的，请问这些报错是什么原因呢？  

2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:888 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:888 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:888 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:888 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:888 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: bind() to 0.0.0.0:443 failed (98: Address already in use)
2017/11/19 20:17:53 [emerg] 1180#0: still could not bind()

有其他服务占用了80 443端口导致
你可以输入以下两条命令看看是什么服务占用了端口

1. lsof -i :80
   
2. lsof -i :443

复制代码

没有，不过现在日志也没有报错，不是随时报错，每天都会有一些错误记录，但是使用一切正常，奇怪的很。

COMMAND   PID USER   FD   TYPE  DEVICE SIZE/OFF NODE NAME
nginx   31317 root   17u  IPv4  922442      0t0  TCP *:http (LISTEN)
nginx   31318  www   17u  IPv4  922442      0t0  TCP *:http (LISTEN)
nginx   31319  www   17u  IPv4  922442      0t0  TCP *:http (LISTEN)