[plug] dns reverse lookup

[Nikhil Jogia]

Peter Sutter wrote:
> 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
> _______________________________________________
> PLUG discussion list: plug at plug.org.au
> http://www.plug.org.au/mailman/listinfo/plug
> Committee e-mail: committee at plug.linux.org.au
>   
The only problem with SMTP is that some mail servers (AOL comes to mind) 
will block mail sent from known dynamic IPs. Also, an SMTP server 
identifying itself with a different hostname that what the RDNS says may 
set off spam filters.

You need to be on one of their "Business Plans" to get a static IP and 
custom RDNS. FWIW,Amnet gives you a static IP and custom RDNS for free.