Re: [Tclhttpd-users] virtual hosts

[Reinhard M. <ma...@tc...>]

Hi,

On Tue, 7 Nov 2006 at 15:14, Steve Blinkhorn wrote:

> What about multiple software servers, i.e. instances of tclhttpd, 
> each responding to a different virtual domain but using the same 
> port number, although on just one IP address?

That wouldn't work. TCP/IP doesn't know about host names and so 
doesn't have a way to distinguish between connections to the domains A 
and B if both servers listen on the same IP address and port name.

Or did you mean the machine has multiple IP addresses and each server 
listens on a different one? That would work, but be a waste of IP 
addresses and is the very reason why the possibility to run web 
service for multiple domains through a single IP/port pair was added 
to the HTTP protocol.

Also, multiple tclhttpd processes running on a single machine might 
consume more resources (especially memory) than using a single 
instance. OTOH, there might be valid reasons for running separate 
instances, e.g. for privilege separation or fail safety.

> And when did this feature arrive in tclhttpd?

IIRC it was one or two releases ago.

cu
	Reinhard