I installed Apache 2.2.11 on the Windows XP portion of my desktop workstation for development purposes, but I got a lot of ambiguous errors when starting from the Apache Service Monitor or the Windows start menu.
Finally, when I started Apache from the command line I got a more informative error:
(OS 10048) Only one usage of each socket address (protocal/network address/port) is normally permitted. : make_sock: could not bind to address 127.0.0.1:80 no listening sockets available, shutting down
It turns out, I had Skype running, which by default binds to ports 5520, 80, and 443. There are several solutions:
- Quit Skype and don’t run Skype and Apache at the same time. Not ideal, but it works.
- Change which port Apache uses. In your Apache2/conf/httpd file, change the line “Listen 80” to something like “Listen 8888”. Apache should start, but you’ll need to access it via http://localhost:8888 instead of merely http://localhost
- Change which ports Skype uses for incoming connections. Go to Tools–Options–Advanced–Connection and un-check the box next to “Use port 80 and 443 as alternatives for incoming connections.”
As far as I can tell, the last option has no ill-effect on Skype, although it might if your firewall or router is blocking port 5520.
I ended up installing Apache 2.0 in addition to Apache 2.2, as I was having trouble with mod_perl with the latter. I ran into the same issue there as well, and once I quit Skype I was able to start Apache.
Strangely enough, I now seem to have both Skype and Apache running and both listening on port 80, so perhaps I’ve misdiagnosed the problem completely.
You fool! After all the messing around with installing Active Perl and trying to compile mod-perl2 after finding nmake, you discovered XAMPP for Windows.
Much easier.
I get the same error, but I can’t find what else is running on port 80. I tried the “netstat” in Start>Run but the window only shows for 1/10th of a second. I can see stuff there, but I can’t read it. I looked for Skype and I don’t see it. I turned off my firewall to no avail.
I have been banging my head against the wall all weekend. All I want to do is learn php, experiment and see the results. I’ve found lots of solutions that have helped other people, but not me. I know it’s something easy to fix, just not easy to find.
Try Start->Run->”cmd” to open a DOS-like command prompt and type “netstat” there. The window should stay open so that you can review the results.
Type “exit” to close the command prompt.