装过rpm包，在装源码包，结果源码包没法启动，关闭rpm包也失败，不知道怎么回事
[root@localhost apache2]# /usr/local/apache2/bin/apachectl start
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
[root@localhost apache2]# service httpd stop
Stopping httpd: [FAILED]
阿帕奇没法启动，也关不了，怎么办
