Beginner questions about proxy configuration and white space

[ynasser]

I don't think it's a problem with reloading the configuration file,
because I have been reloading it every time after I update and save it.

What is happening is that when I run 'sudo nginx', it doesn't start and
outputs this error:

nginx: [emerg] bind() to some_ip:some_port failed (49: Can't assign
requested address)

I can access some_ip:some_port just fine from a browser and ssh-ing into
it is not a problem.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,214982,215044#msg-215044