specifying ftp mirror for port installs

[Lowell Gilbert]

Peter <petermatulis at yahoo.ca> writes:

> Hi, how can I specify what ftp mirror my system will use when
> downloading distfiles during a port installation?  I'm using 6.0.

Have you tried the variables described in the manual? (ports(7))
In particular, I think MASTER_SITE_OVERRIDE is what you want.  
Depending on exactly what you want...