[Gmod-gbrowse] require valid-user

[Sofia Robb]

Hello,

I would like to require that a specific track is only viewable from a
specific IP range or from a valid user. The IP range works great. When I am
not in the IP range, i would like the apache login box to pop up and ask
for the user and pasword. I set up my .httpd.conf and passwords file, but i
am not getting the box asking me to log in when i have a link that contains
a region with this track to be displayed, and the snp track is not being
displayed.

[snps]
restrict = Order deny,allow
deny from all
Allow from 172.16.[9-63]
require valid-user

How do I properly set up "require valid-user" ?

Thanks,
Sofia