service httpd restart faield.

状態

$ /etc/httpd/conf.d/ | xargs grep 443
/etc/httpd/conf.d/ssl.conf.obsolete:Listen 443
/etc/httpd/conf.d/ssl.conf.obsolete:<VirtualHost _default_:443>
/etc/httpd/conf.d/ssl.conf.obsolete:#ServerName www.example.com:443
/etc/httpd/conf.d/ssl.conf:Listen 443
/etc/httpd/conf.d/ssl.conf:<VirtualHost _default_:443>
/etc/httpd/conf.d/ssl.conf:#ServerName www.example.com:443find /etc/httpd/conf.d/ | xargs grep 443ssds
/etc/httpd/conf.d/ssl.conf.obsolete:Listen 443
/etc/httpd/conf.d/ssl.conf.obsolete:<VirtualHost _default_:443>
/etc/httpd/conf.d/ssl.conf.obsolete:#ServerName www.example.com:443
/etc/httpd/conf.d/ssl.conf:Listen 443
/etc/httpd/conf.d/ssl.conf:<VirtualHost _default_:443>
/etc/httpd/conf.d/ssl.conf:#ServerName www.example.com:443

解決策

rm /etc/httpd/conf.d/ssl.conf.obsolete
mv /etc/httpd/conf.d/ssl.conf /etc/httpd/conf.d/ssl.conf.obsolete