Port 81

Don Schultz

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When setting up a BI web server the BI documentation recommends using port 81. Why is port 81 any better than any other port?
 

bp2008

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Port 80 is slightly more likely to be blocked by internet providers, and much more likely to be scanned by botnets. Also it is more likely to already be in use by a program on the same PC (and only one program at a time can listen for connections on a port). Otherwise, it isn't better. Pretty much any port from 1-65535 can be used.

There are some ports, though, that popular browsers won't connect to, so you should not pick one of them.

Which ports are considered unsafe on Chrome
Mozilla Port Blocking
 

Machine

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I would recommend using a random port greater than 1024.
 
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