For the umpteenth time I’ve decided to pick back up running XAMPP and CakePHP. I’m still somewhat of a PHP newbie but I figured what the hell, Once more into the breach.

I’ve kept a load of XAMPP on my USB stick for just such an occasion. So I fire it up, start Apache and it fails. Over and over. I figure that I’ve broken it somehow. In the past I’ve had this problem with drive letters changing so I figure that’s the problem. I diligently pour through my configs and everything appears to be well.

Ok, I decide. Let’s update to the latest version of XAMMP. A quick download later and I’ve got it copied to the same USB stick. Let’s do this, I mutter.

Same problem.

After some troubleshooting I finally get an error from Apache.


\xampp\apache\bin>apache.exe -k restart -k f:\xampp\apache\conf\httpd.conf
(OS 10048)Only one usage of each socket address (protocol/network address/port)
is normally permitted. : make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down

Interesting…no sockets available? I quickly snapped off a message to Damon for a little Apache know-how. He concurs that it looks like something is using port 80, my default Apache port.

With a little DOS command-line magic (again courtesy of Damon):

netstat -ano | find ":80"

Lo and behold…Skype. By default Skype turns on an option to use ports 80 and 443 for communication in case the other 8,308,234 ports aren’t available. (I know, there are only 65535 ports available in TCP but just go with it.)

Skype Options

Who knew?

Due to the advancement in the technology communications throughout the world has become very fast and easy. People are now communicating with each other not only via telephone but also through internet. The new technology used in this respect is internet telephone. Many companies are using services like voip services to communicate around the globe. They have to install internet voip protocol to implement this over the network. There is much software which supports internet phone system. You can get this free from internet. The example of this is skype download able software.

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