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I've been using nginx without any problem on windows for the last few months. Today when I tried to start it up, I got this error:

nginx: [emerg] bind() to failed (10013: An attempt was made to access a socket in a way forbidden by its access permissions)

Why did this start happening all of a sudden? I didn't change any configs or anything.

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closed as off topic by Michael Hampton, mdpc, Tom O'Connor, Khaled, Iain Feb 13 '13 at 9:39

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Is this on a real server or is it on a workstation? –  Iain Feb 13 '13 at 8:22
windows workstation –  Dean Rather Feb 13 '13 at 9:26
In truth this is then probably a better for for Super User. –  Iain Feb 13 '13 at 9:45

3 Answers 3

Check Skype.

Skype automatically updated itself, and turned the "use port 80" option back on.

It's in settions->advanced.

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Unbelievable, but thanks. Tools > Options > Advanced > Connection –  Tom Sep 12 '14 at 12:45

Check which ports are being used on your system.

There are some programs which bind port 80. For example TeamViewer, Skype, etc.

For an easy test type http://localhost in your browser and check which service appears.

Or ou can use a programm like CurrPorts by NirSoft.

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You can try run in CMD:

netstat -a | find "LISTENING"

also there was a piece of software called TCPView, which is very cool, and shows all runing process/occupied ports.

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