Question

I just switch to Apache webserver and I receive an error

(OS 10048)Only one usage of each socket address (protocol/network
address/port) is normally permitted. : make_sock: could not bind to
address 0.0.0.0:443 no listening sockets available, shutting down
Unable to open logs

That is what I have got after running httpd from commandline. I reset my apache documentRoot as well as server’s listening port to one that is free to use already, I have no idea about this error with port 443, is it something about SSL ?

UPDATE
I am using XP

Answer 1

Copying and pasting your exact error into google gave a couple of answers:

• https://wiki.apache.org/httpd/CouldNotBindToAddress

Port 443 seems to already be in use. Possibly by your old server. One of the three covered errors in the official apache wiki above is:

Address is already in use

Something else is already using the port in question.

Run one of the following commands to check if a running process is
holding the port needed by apache open.

On Linux/Unix run
$>  netstat -plant
$> # or
$> sudo lsof -i:80

On Windows run
$>  netstat -ano

On Mac OS X / FreeBSD run
$> netstat -Wan |grep 80
$> # or, to get the pid
$> sudo lsof -i:80

Once you see these results, you can choose to kill the program in
question, or change the port that Apache uses.

If Apache (httpd, apache2, etc) is the application listening on these
ports, but you can’t stop it using your normal procedure, someone may
have deleted the servers PidFile. The PidFile records the process ID
of the parent process and is how most scripts test to see if Apache is
running. You can manually stop the server by determining the PID of
the parent process and sending it a SIGTERM.