On 24/12/2019 00:03, The Natural Philosopher wrote:
On 23/12/2019 19:34, John Rumm wrote:
On 23/12/2019 19:13, The Natural Philosopher wrote:
On 23/12/2019 00:27, Roger Hayter wrote:
The Natural Philosopher wrote:
On 22/12/2019 13:57, John Rumm wrote:
On 21/12/2019 21:39, Tim Streater wrote:
In article , The Natural Philosopher
wrote:
On 21/12/2019 19:11, John Rumm wrote:
On 21/12/2019 16:21, The Natural Philosopher wrote:
On 21/12/2019 15:45, John Rumm wrote:
I think most would be comfortable with the concept of a "SMTP
server", a "POP3 server" and an "IMAP server" as being fair
description a software process running on a server that
implements
the server end of those protocols.
They might be, but the established terminology is of an SMTP
relay,
because it *serves* nothing.
If it sits there with an open rendezvous port, waiting for a
client
to connect, then its a server.
No, it isnt.
A router does that.
No, routers route packets.
For some reason I can't see TNP's reply which you quoted. However
I am
somewhat surprised by it since I had thought he had a better grip on
networking related stuff and hence would know that a router is
layer 3
device with no concept of end to end transport steam concepts like
ports
and sockets.
Every router I have had has a management interface. It listens to
telnelt ssh or http.
Does that make it a server?
Yes.Â*Â* In a rather trivial, but undeniable, sense.
I wonder why we call it a 'router' then. Not a 'server'
Because that is its primary function. It likely has a network switch
built in as well, but they don't call it that. Same for the built in WAP.
In addition to its layer 3 routing capabilities, it will have many
actual servers built in that typically operate at OSI layers 4/5 and
above, to facilitate management and other activities. The obvious ones
being things like a DHCP server, plus HTTP, and Telnet/SSH servers to
allow configuration. WPS server for automatic wifi configuration.
Same is true for pretty much any other box you plug into a network
these days.
And a mail relay aÂ* mail relay, not a mail server.
All mail relays are servers, not all servers are mail relays.
Oh dear. Relaying mail is its 'primary function'. Not servingÂ* mail.
You seem to be trying to contort into a semantic oozlum bird, and I
think you are close to succeeding.
--
Cheers,
John.
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