Selective forwarding for reverse zones?
Treptow, Craig
Treptow.Craig at principal.com
Tue Apr 11 14:35:44 UTC 2000
Hi. Both servers in this example are 8.2.2-p5. I've checked out the archives
of this list, the DNS&BIND book, as well as
http://www.acmebw.com/papers/bind82.pdf. If it is addressed somewhere, or I
missed it, please let me know.
On the server for foobar.com, forward and reverse lookups work fine, as in:
# nslookup craig
Server: netmon4.foobar.com
Address: 192.168.40.201
Name: craig.foobar.com
Address: 192.168.40.26
# nslookup 192.168.40.26
Server: netmon4.foobar.com
Address: 192.168.40.201
Name: craig.foobar.com
Address: 192.168.40.26
#
On the server for principal.com (nameserver1), I can do selective forwarding
for forward resolutions, as in:
# nslookup craig.foobar.com
Server: nameserver1.principal.com
Address: 192.168.34.5
Non-authoritative answer:
Name: craig.foobar.com
Address: 192.168.40.26
#
Where this is in the "nameserver1" machine's /etc/named.conf:
zone "foobar.com" IN {
type forward;
forward only;
forwarders { 192.168.40.201; };
};
zone "40.168.192.in-addr.arpa" IN {
type forward;
forward only;
forwarders { 192.168.40.201; };
};
And this is a small section of the db.foobar.com:
treptow IN CNAME craig.foobar.com.
craig IN A 192.168.40.26
And this is a small section of the db.192.168 on the foobar.com server:
26.40 IN PTR craig.foobar.com.
The "nameserver1" machine also has this in it's db.192.168:
$ORIGIN 40.168.192.in-addr.arpa.
12 1200 IN PTR dom2.root.principal.com. ;Cl=4
100 1200 IN PTR root.root.principal.com. ;Cl=4
170 1200 IN PTR pfgw2k.pfgusa.root.principal.com. ;Cl=4
105 1200 IN PTR dom2.root.principal.com. ;Cl=4
106 1200 IN PTR wtsw2k.root.principal.com. ;Cl=4
190 1200 IN PTR root.w2kpilot.local. ;Cl=4
152 1200 IN PTR term1.root.principal.com. ;Cl=4
166 1200 IN PTR CLUSTER1.root.principal.com. ;Cl=4
I'd like to be able to lookup 192.168.40.26 on the "nameserver1" machine and
get back craig.foobar.com.
Any insight is appreciated.
Thanks!
Craig
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