Subject: DNS questions
To: None <tech-net@netbsd.org>
From: andrea <andrea.franceschini@linet.it>
List: tech-net
Date: 04/12/1999 15:31:06
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I'm going to configure a DNS services on my NetBSD system.
I have still some doubts about Back-Conversion.
i have to back-convert a pool of addresses (194.xxx.xx.64 - =
194.xxx.xx.127)
What i done is this:
Created an entry in named.boot
primary yyy.xxx.194.in-addr.arpa =
yyy.xxx.194.dns
And a file in namedb directory named yyy.xxx.194.dns
with the following Records:
65 IN PTR test.mynet.com.
66 IN PTR test1.mynet.com.
etc etc =20
Now ,this works pretty fine to me,but it seems to be incorrect.
SysAdm of my Provider told me that the correct configuration was =
something like this:
primary 64.yyy.xxx.194.in-addr.arpa =
64.yyy.xxx.194.dns
with 64.yyy.xxx.194.dns equal to the one above.
It works .. of course... but something let me unconvinced.
What of the above is 'more correct' and why?
It's because of subnetting?
i belived that handling of reverse-address mapping was the same of =
normal addresses,but in 'in-addr.arpa' case named beahave different.
THanks
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>I'm going to configure a DNS services =
on my NetBSD=20
system.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>I have still some doubts about=20
Back-Conversion.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>i have to back-convert a pool of =
addresses=20
(194.xxx.xx.64 - 194.xxx.xx.127)</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>What i done is this:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Created an entry in =
named.boot</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>primary =20
yyy.xxx.194.in-addr.arpa =
=20
=
=20
yyy.xxx.194.dns</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>And a file in namedb directory=20
named yyy.xxx.194.dns</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>with the following =
Records:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>65 =
=
=20
IN =
PTR test.mynet.com.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>66 =
=
=20
IN PTR test1.mynet.com.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>etc=20
etc =20
</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Now ,this works pretty fine to =
me,but it seems=20
to be incorrect.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>SysAdm of my Provider told me that the =
correct=20
configuration was something like this:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>primary =20
64.yyy.xxx.194.in-addr.arpa =20
=
=20
64.yyy.xxx.194.dns</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>with 64.yyy.xxx.194.dns equal to the =
one=20
above.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>It works .. of course... but something =
let me=20
unconvinced.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>What of the above is 'more correct' and =
why?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>It's because of =
subnetting?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>i belived that handling of =
reverse-address mapping=20
was the same of normal addresses,but in 'in-addr.arpa' case named =
beahave=20
different.</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>THanks</FONT></DIV></BODY></HTML>
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