Joshua Hudson <[email protected]> wrote:
> If I ever need to know my outside-facing IP address, I connect a UDP
> socket to 1.2.3.4
Is your MUA doing that to construct MsgIDs? Your NUA? Your MTA? a local news
spool? For a robust installation of all of them you specify the name, but
some of those services better work out of the box, so the notion of a
primary FQDN is not that bad to have.
> and to a getsockname(). To get outside-hostname, I do a reverse-lookup on that.
> Since 1.0.0.0/8 will never be allocated, this is gauranteed to work
> when there is a way out.
Why should any of your IPs have a reverse resolveable name?
Gruss
Bernd
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