$ nsot-server start -a 0.0.0.0
Performing upgrade before service startup...
Performing collectstatic before service startup...
0 static files copied to '/home/fabric/fabric/lib/python2.7/site-packages/nsot/staticfiles', 149 unmodified.
Running service: 'http', num workers: 4, worker timeout: 30
Error: 'None' is not a valid port number.```
The default port should be used if not provided. This is a bug.