bind8 and bind9 installed on the same server: possible?

[Jeremy C. Reed]

On Tue, 1 Feb 2011, hugo hugoo wrote:

> I plan to upgrade my nameservers from bind8 to bind9.
> I guess I will encounter some compatibility problems notably in the layout
> of the zone files
>  
> - can anybody give me the point of attention for this upgrade? Your
> experience will be appreciated.

The BIND 9 source includes "BIND 8 to BIND 9 Migration Notes".

Please see doc/misc/migration

> - is it possible to install bind9 without removing bind8 in order to could
> easily and quickly swith from bind8 to bind9 and vice versa?

If installing from source, you can build BIND 9 using ./configure 
--prefix=/usr/local/bind9 (change path has you like to not overwrite 
existing).


  Jeremy C. Reed
  ISC