Internal and external DNS configuration - how to
Andreas Schaefer
AndiSHFR at gmx.net
Thu Aug 5 11:16:07 UTC 2004
Hello listmembers.
Currently i try to use our internal nameserver (net 10.0.0.0/8) as a
master for our private/internal names and for our public names. i
have read a lot about split-brain configurations but there are some
things that i may have overread or did not read at all.
I want a nameserver on the internal network for all internal
names like "mypc.int.domain.com" and external names like
"www.domain.com" - ok. The public dns is setup as a slave dns
to the internal master dns.
Q: How does our public nameserver get the zone file for "domain.com"
but not for "int.domain.com". As far as i know the slave will
request zone transfers in case of change. But the internal
master dns cannot be reached from the outside world?
Is there a way to push the zone to the public (slave) dns
from the internal (master) dns?
P +--------------------------------------+
U | public dns as slave for "domain.com" |
B | can give authoritative answers |
L +------+-------------------------------+
I | 195.52.37.128/28
C | /\
+----+------------+ | Traffic flows
| FIREWALL / NAT | | from inside to outside
+----+------------+ |
P | |
R |
I | 10.0.0.0/8
V +-----------------------------------------------------------+
A | priv. dns as master for "domain.com" and "int.domain.com" |
T +-----------------------------------------------------------+
E
Maybe i missunderstodd or overread something here.
best regards
Andreas Schaefer
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