Ubuntu – httpd (no pid file) not running while restarting apache

apache-2.2httpdUbuntuweb-server

I am working on ubuntu. I got the error messages while try to restart apache. 

root@XXX:/etc/init.d# sudo /etc/init.d/apache2 restart
 * Restarting web server apache2                                                                                                              apache2: Could not reliably determine the server's fully qualified domain name,                                                               using xxx.xxx.xx.xxx for ServerName
httpd (no pid file) not running
apache2: Could not reliably determine the server's fully qualified domain name,                                                               using xxx.xxx.xx.xxx for ServerName
(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

I got the following message when tried netstat -pant

tcp        0   0 0.0.0.0:80              0.0.0.0:*               LISTEN      0          32748       9950/httpd

tcp      429      0 xxx.xxx.xx.xxx:80       xxx.xxx.xx.xxx:xxxxx    CLOSE_WAIT  0          0

Best Answer

Use lsof -i :80 {check if the parameter is correct). It's listing all the application that are listening on port 80.

Also try to run apache2 {directly the executable} to check what is happening.

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