Approaches of interprocess communication

[Donn Cave]

Quoth Steve Holden <steve at holdenweb.com>:
| Ben Finney wrote:
...
| > If a programmer decides on behalf of the user that "localhost" should
| > be treated specially, that programmer is making an error.
|
| Inter-process TCP/IP communication between two processes on the same 
| host invariably uses the loopback interface (network 127.0.0.0). 
| According to standards, all addresses in that network space refer to the 
| local host, though 127.0.0.1 is conventionally used.
|
| The transmit driver for the loopback interface receives a datagram from 
| the local network layer and immediately announces its reception back to 
| the local network layer.

Are you saying, in that first paragraph, that if for example I telnet to
my local host's external IP address, to a service that bound explicitly to
the external interface -- I'll actually be going through the loopback
interface anyway, invariably regardless of host network implementation?

	Donn Cave, donn at drizzle.com