Linux 启动 Apache 时报错：(98)Address already in use: make_sock: could not bind to add

[root@localhost sh]# service httpd start
Starting httpd: httpd: Could not reliably determine the server‘s fully qualified domain name, using localhost.localdomain for ServerName
(98)Address already in use: make_sock: could not bind to address [::]:80
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
[FAILED]

[root@localhost sh]# netstat -tulnp | grep ":80"
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      1327/nginx

[root@localhost sh]# ps -ef | grep nginx
root      1327     1  0 11:35 ?        00:00:00 nginx: master process /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf
www       1329  1327  0 11:35 ?        00:00:00 nginx: worker process
root      3902  1789  0 14:41 pts/0    00:00:00 grep --color=auto nginx

[root@localhost sh]# kill -9 1327
[root@localhost sh]# kill -9 1329

[root@localhost sh]# service httpd start
Starting httpd: httpd: Could not reliably determine the server‘s fully qualified domain name, using localhost.localdomain for ServerName
[  OK  ]