You wrote: > > On Thu, Nov 16, 2023 at 03:48:49PM +0000, Steve Blinkhorn wrote: > > In a situation where a NetBSD machine (9.2 amd64 if it matters) has > > multiple network adapters each with multiple IP addresses > > corresponding to diverse domain names, to what are port numbers > > uniquely attached? > > > > They're attached to IP addresses, either specific IP addresses or > unspecified IP address (0.0.0.0 or ::). If the server application > binds to the unspecified IP address the port is not bindable to specific > IP addresses by other servers. >
So can two different IP addresses on the same adapter each use the same port number each for its own distinct purposes? I would assume they can since I run different web servers that use ports 80 and 443 in this way. (Obviously I have a debugging problem that's irking me, but I think is not strictly a NetBSD issue - I'm just trying to eliminate wilder possible sources). Thanks for the swift response, BTW. -- Steve Blinkhorn <st...@prd.co.uk>
