From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1Rm9Ow-0000Bw-Ha for garchives@archives.gentoo.org; Sat, 14 Jan 2012 19:36:30 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id E4B33E088D; Sat, 14 Jan 2012 19:36:16 +0000 (UTC) Received: from mail-tul01m020-f181.google.com (mail-tul01m020-f181.google.com [209.85.214.181]) by pigeon.gentoo.org (Postfix) with ESMTP id 4B281E07CE for ; Sat, 14 Jan 2012 19:35:17 +0000 (UTC) Received: by obbup10 with SMTP id up10so3738851obb.40 for ; Sat, 14 Jan 2012 11:35:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=ITLn7rkStYjtkFwgkfewepUMSxjzRJKxbXtWsWO5XyY=; b=grIctk6s/fvTg9ZtggC6I6TiZManszFXC62oH9/YJ8MjS7m5yT3zy1/zmu+jJBwNMS /YQ+lyL1G/KqJdHtG2q6833qeXyCmMviXBRvv2nd5TU7yg3WI9TySVats0UYEYh9iqgU 8k9IoAR32RL5a/I9ln2xa1vLik3AzJhiKpGX4= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.182.117.8 with SMTP id ka8mr5211221obb.73.1326569716677; Sat, 14 Jan 2012 11:35:16 -0800 (PST) Received: by 10.182.241.73 with HTTP; Sat, 14 Jan 2012 11:35:16 -0800 (PST) In-Reply-To: <20120109000206.4ebab630@khamul.example.con> References: <20120109000206.4ebab630@khamul.example.con> Date: Sat, 14 Jan 2012 13:35:16 -0600 Message-ID: Subject: Re: [gentoo-user] Managing rDNS with BIND From: Carlos Sura To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary=f46d04478603bb7b8304b6821421 X-Archives-Salt: 0abd13b4-eddb-49ea-8084-2a0f92905002 X-Archives-Hash: bffba5738212c5bcebce8c7387a6c60e --f46d04478603bb7b8304b6821421 Content-Type: text/plain; charset=ISO-8859-1 On 8 January 2012 16:02, Alan McKinnon wrote: > On Sat, 7 Jan 2012 09:45:44 -0600 > Carlos Sura wrote: > > > Hello mates, > > > > I have a problem, my provider does not want to set rDNS to my IP's > > since I have 5 IP's rotating for my server, I don't know why. So he > > told me I can do this manually. > > > > So I've added this as a master zone: > > $ttl 38400 > > 80.236.109.in-addr.arpa. IN SOA dominio.dominio.com. > > abuse.dominio.com. (notice that last digits are miss) > > 1325905990 > > 10800 > > 3600 > > 604800 > > 38400 ) > > 80.236.109.in-addr.arpa. IN NS dominio.dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR ns1.dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR ns2.dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. > > > > > > But it does not reflect any change in any machine, just in the local > > machine I get the answer, when I try in any other machine, it still > > showing me the rDNS of my provider. > > > The reason is quite simple and most sane ISPs will do it that way. > > rDNS is NOT your A records in reverse, and you have no right of access > to the zone. > > in-addr.arpa serves an entirely different purpose, it documents the > layout of the ISPs address space. Your 5 IPs have not been delegated to > you and you do not own them per whois, they still belong to your ISP and > are merely recorded in the ISP record as assigned for your use. > > Therefore the ISP will use their own documentation standards to > determine what is in the rDNS zone. > > Additionally, delegating out a /29 is a gigantic pain in the arse and > leads to an unmaintainable mess in very short order (so says the poor > sucker that's had to fix it...). At work we never sub-delegate out rDNS > to customers; but we do do it for downstream re-sellers as they are > ISPs in the in own right. > > So your ISP is quite correct in what they are saying. However, I would > like to see a clarification of what your support contact means when he > says "do it manually" - that doesn't make any sense > > -- > Alan McKinnon > > Hello Alan McKinnon, Thank you for your answer, I get you now you explained everything I needed to know. About my ISP, they changed it for me, since I was sending a lot of ticket support to them, because they have a poor support, I understand they don't manage and help me with a lot of things, basically I don't need them, the only thing I was asking for is to set the rDNS for me, hopefully they did, cause I told them, that I really don't understand what they mean by "do it by myself" and I was reading all BIND ebook to understad how delegation works. Regards -- Carlos Sura.- www.carlossura.com --f46d04478603bb7b8304b6821421 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

On 8 January 2012 16:02, Alan McKinnon <= span dir=3D"ltr"><alan.mckinn= on@gmail.com> wrote:
On Sat, 7 Jan 2012 09:45:44 -0600
Carlos Sura <carlos.sura1= @googlemail.com> wrote:

> Hello mates,
>
> I have a problem, my provider does not want to set rDNS to my IP's=
> since I have 5 IP's rotating for my server, I don't know why. = So he
> told me I can do this manually.
>
> So I've added this as a master zone:
> $ttl 38400
> 80.236.109.in-addr.arpa. IN SOA dominio.dominio.com.
> abuse.dominio.c= om. (notice that last digits are miss)
> 1325905990
> 10800
> 3600
> 604800
> 38400 )
> 80.236.109.in-addr.arpa. IN NS dominio.dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR ns1.dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR ns2.dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com.
> xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com.
>
>
> But it does not reflect any change in any machine, just in the local > machine I get the answer, when I try in any other machine, it still > showing me the rDNS of my provider.


The reason is quite simple and most sane ISPs will do it that way.

rDNS is NOT your A records in reverse, and you have no right of access
to the zone.

in-addr.arpa serves an entirely different purpose, it documents the
layout of the ISPs address space. Your 5 IPs have not been delegated to
you and you do not own them per whois, they still belong to your ISP and are merely recorded in the ISP record as assigned for your use.

Therefore the ISP will use their own documentation standards to
determine what is in the rDNS zone.

Additionally, delegating out a /29 is a gigantic pain in the arse and
leads to an unmaintainable mess in very short order (so says the poor
sucker that's had to fix it...). At work we never sub-delegate out rDNS=
to customers; but we do do it for downstream re-sellers as they are
ISPs in the in own right.

So your ISP is quite correct in what they are saying. However, I would
like to see a clarification of what your support contact means when he
says "do it manually" - that doesn't make any sense

--
Alan McKinnon



Hello Alan McKinnon,

Thank you for your answer, I get you now you explained everything I n= eeded to know. About my ISP, they changed it for me, since I was sending a = lot of ticket support to them, because they have a poor support, I understa= nd they don't manage and help me with a lot of things, basically I don&= #39;t need them, the only thing I was asking for is to set the rDNS for me,= hopefully they did, cause I told them, that I really don't understand = what they mean by "do it by myself" and I was reading all BIND eb= ook to understad how delegation works.

Regards

--
Car= los Sura.-

--f46d04478603bb7b8304b6821421--