service httpd start httpd (을)를 시작 중: httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 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 (98)Address already in use: make_sock: could not bind to ..