Faster zone transfer/less traffic

[Danny Mayer]

At 02:53 AM 9/8/01, Terrence Koeman wrote:

>Hello list,
>
>I think someone here can help me.
>
>I have a particular zone that is about 20Mb on disk, the zone has a refresh
>interval of 1 hour. The zone usually changes within the refresh interval.
>
>This zone needs to be transferred between the master in the USA and a slave
>in The Netherlands, and the connection between them is not ideal. At the
>moment the transfer takes about 40 minutes, so the slave is pulling the zone
>almost all the time. In many cases the transfer times out and is restarted
>from the beginning.
>
>How can I improve this with BIND (master and slave both running BIND)?
>
>I saw something about IXFR, but I can hardly find any documentation about
>it. I'm guessing that IXFR only transfers the changes in the zone instead of
>the whole zone. Is this true? And if yes, what versions of BIND support it
>and how is it turned on?
>
>Another thing, I tried compressing the zone and it compresses down to less
>than a Mb. Does BIND have support for compressed zone transfers?


Is this the BIND 8.2.4-NT2 running on Windows 2000? I believe the Unix versions
do, but you need gzip installed on NT to handle the NT side, if I remember the
code correctly.  I think that option is disabled on NT by default and you would
have to rebuild it with ZXFR enabled.

         Danny

         Danny