Reverse look-up - in-addr.arpa delegation - rfc 2317
Constantin Moldovan
cmoldovan at gt.ca
Mon Aug 14 15:18:47 UTC 2000
Hello,
I've read the RFC 2317 three times but I still have problems if I want to
do a reverse delegation for only one IP Address.
I have to set the reverse DNS for
209.17.183.233 to gt.antarcti.ca
and to set the reverse DNS for
209.17.159.205 to antarcti.ca
Our Name Servers:
NS1.BROADBAND.NET 207.107.209.130
NS2.BROADBAND.NET 209.17.128.34
do not provide management for the domain antarctica.ca
so I do not have any information in my DNS db files about antarcti.ca
nor for the 2 IP Addresses 209.17.183.233 and 209.17.159.205.
But the IP Block belongs to us:
->:/# whois -h rs.arin.net 209.17.159
GT Group Telecom Services Corp. (NET-GROUPTELECOM-BLK-1) GROUPTELECOM-BLK-1
209.17.128.0 -
209.17.191.255
Total Connect Communications Inc. (NETBLK-GT-209-17-159-0) GT-209-17-159-0
209.17.159.0 -
209.17.159.127
Antarcti.ca Systems Inc. (NETBLK-GT-209-17-159-192) GT-209-17-159-192
209.17.159.192 -
209.17.159.207
Mercator Systems Ltd. (NETBLK-GT-209-17-159-208) GT-209-17-159-208
209.17.159.208 -
209.17.159.223
->:/# whois -h rs.arin.net 209.17.183
GT Group Telecom Services Corp. (NET-GROUPTELECOM-BLK-1) GROUPTELECOM-BLK-1
209.17.128.0 -
209.17.191.255
Impact Business Solutions Inc. (NETBLK-GT-209-17-183-0) GT-209-17-183-0
209.17.183.0 -
209.17.183.127
BuildDirect.com (NETBLK-GT-209-17-183-128) GT-209-17-183-128
209.17.183.128 -
209.17.183.191
Schema Software Inc. (NETBLK-GT-209-17-183-192) GT-209-17-183-192
209.17.183.192 -
209.17.183.207
PerCurrence Inc. (NETBLK-GT-209-17-183-208) GT-209-17-183-208
209.17.183.208 -
209.17.183.223
->:/# whois -h rs.arin.net NET-GROUPTELECOM-BLK-1
GT Group Telecom Services Corp. (NET-GROUPTELECOM-BLK-1)
Netname: GROUPTELECOM-BLK-1
Netblock: 209.17.128.0 - 209.17.191.255
Domain System inverse mapping provided by:
NS1.BROADBAND.NET 207.107.209.130
NS2.BROADBAND.NET 209.17.128.34
->:/# nslookup
Default Server: aphrodite.gt.ca
Address: 209.17.128.34
> set type=any
> antarcti.ca
Server: aphrodite.gt.ca
Address: 209.17.128.34
Non-authoritative answer:
antarcti.ca nameserver = ns1.cs.ubc.ca
antarcti.ca nameserver = fs1.ugrad.cs.ubc.ca
antarcti.ca internet address = 209.17.159.205
Authoritative answers can be found from:
antarcti.ca nameserver = ns1.cs.ubc.ca
antarcti.ca nameserver = fs1.ugrad.cs.ubc.ca
ns1.cs.ubc.ca internet address = 142.103.6.6
fs1.ugrad.cs.ubc.ca internet address = 198.162.35.1
My problem with RFC 2371 is that I have only 2 IP Addresses.
What I think I should do;
1. add to named.boot:
primary 183.17.209.in-addr.arpa db.209.17.183
primary 159.17.209.in-addr.arpa db.209.17.159
2. edit db.209.17.183 file:
$ORIGIN 17.209.in-addr.arpa.
183 IN SOA gt.ca. root.gt.ca. (
2000081401 5400 900 28800 5400 )
IN NS ns1.gt.ca.
IN NS ns2.gt.ca.
6.6.103.142.in-addr.arpa. IN NS ns1.cs.ubc.ca.
1.35.162.198.in-addr.arpa. IN NS fs1.ugrad.cs.ubc.ca.
gt.antarctica.ca. IN A 209.17.183.233
$ORIGIN 183.17.209.in-addr.arpa.
233 IN CNAME 233.183.17.209.in-addr.arpa.
and edit db.209.17.159 file:
$ORIGIN 17.209.in-addr.arpa.
159 IN SOA gt.ca. root.gt.ca. (
2000081401 5400 900 28800 5400 )
IN NS ns1.gt.ca.
IN NS ns2.gt.ca.
6.6.103.142.in-addr.arpa. IN NS ns1.cs.ubc.ca.
1.35.162.198.in-addr.arpa. IN NS fs1.ugrad.cs.ubc.ca.
antarctica.ca IN A 209.17.159.205
$ORIGIN 159.17.209.in-addr.arpa.
205 IN CNAME 205.159.17.209.in-addr.arpa.
Is this correct ?
I think I'm still missing something.
Any help will be appreciated.
Thanks,
Constantin
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