Starting httpd: httpd: apr_sockaddr_info_get() failed

While restarting my httpd service, the following error appears,

  #  service httpd restart

 Starting httpd: httpd: apr_sockaddr_info_get() failed

httpd: Could not reliably determine the server' s fully qualified domain name, using 127.0.0.1 for ServerName
(13)Permission denied: make_sock: could not bind to address [::]:23456
(13)Permission denied: make_sock: could not bind to address 0.0.0.0:23456
no listening sockets available, shutting down
Unable to open logs
                                                           [FAILED]

Here i have changed the default port as 23456, after that its not starting... once if i revert back it works.