> I'm soon to be moving web/mail/ftp to a new server, and while the DNS > changes for my various domains are propagating around the internet I was
> wanting to transparently redirect those services from my old machine to
> the new one
You could do web stuff with Apache's ProxyPass and ProxyPassReverse
directives.
You could do mail with scam-backscatter.
You could do FTP with sshfs mounts.
But wouldn't it be easier just to run the TTLs right down on your DNS & do
the switch in one go?