httpdが起動できず、エラーになる。
(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
対処法
/usr/sbin/lsof -i | grep http
で使用ポートを特定
httpd 26333 root 8u IPv6 0t0 TCP *:http (LISTEN)
26333 が原因なので、
sudo kill -9 26333
sudo /etc/init.d/httpd restart
でOK