[plug] dns reverse lookup

[Peter Sutter]

Can somebody please enlighten me about which other linux programs will not 
work unless a successful reverse dns lookup can be made. I found so far 4, 
ftp, ssh and smtp and rsync.

I rely heavily on these programs to support my customers, but in its wisdom, 
iinet decided not to provide reverse lookups for dynamic ip addresses. This 
makes my systems unreachable for those iinet customers that have a dynamic ip 
addresses.

Thanks

Peter