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On Sat, 14 Jan 2012 13:35:16 -0600 |
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Carlos Sura <carlos.sura1@××××××××××.com> wrote: |
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|
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> On 8 January 2012 16:02, Alan McKinnon <alan.mckinnon@×××××.com> |
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> wrote: |
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> |
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> > On Sat, 7 Jan 2012 09:45:44 -0600 |
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> > Carlos Sura <carlos.sura1@××××××××××.com> wrote: |
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> > |
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> > > Hello mates, |
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> > > |
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> > > I have a problem, my provider does not want to set rDNS to my IP's |
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> > > since I have 5 IP's rotating for my server, I don't know why. So |
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> > > he told me I can do this manually. |
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> > > |
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> > > So I've added this as a master zone: |
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> > > $ttl 38400 |
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> > > 80.236.109.in-addr.arpa. IN SOA dominio.dominio.com. |
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> > > abuse.dominio.com. (notice that last digits are miss) |
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> > > 1325905990 |
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> > > 10800 |
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> > > 3600 |
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> > > 604800 |
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> > > 38400 ) |
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> > > 80.236.109.in-addr.arpa. IN NS dominio.dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR ns1.dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR ns2.dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR dominio.com. |
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> > > xx.xx.xxx.xxx.in-addr.arpa. IN PTR mail.dominio.com. |
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> > > |
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> > > |
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> > > But it does not reflect any change in any machine, just in the |
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> > > local machine I get the answer, when I try in any other machine, |
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> > > it still showing me the rDNS of my provider. |
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> > |
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> > |
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> > The reason is quite simple and most sane ISPs will do it that way. |
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> > |
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> > rDNS is NOT your A records in reverse, and you have no right of |
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> > access to the zone. |
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> > |
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> > in-addr.arpa serves an entirely different purpose, it documents the |
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> > layout of the ISPs address space. Your 5 IPs have not been |
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> > delegated to you and you do not own them per whois, they still |
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> > belong to your ISP and are merely recorded in the ISP record as |
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> > assigned for your use. |
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> > |
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> > Therefore the ISP will use their own documentation standards to |
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> > determine what is in the rDNS zone. |
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> > |
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> > Additionally, delegating out a /29 is a gigantic pain in the arse |
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> > and leads to an unmaintainable mess in very short order (so says |
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> > the poor sucker that's had to fix it...). At work we never |
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> > sub-delegate out rDNS to customers; but we do do it for downstream |
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> > re-sellers as they are ISPs in the in own right. |
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> > |
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> > So your ISP is quite correct in what they are saying. However, I |
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> > would like to see a clarification of what your support contact |
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> > means when he says "do it manually" - that doesn't make any sense |
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> > |
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> > -- |
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> > Alan McKinnon |
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> > |
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> > |
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> |
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> Hello Alan McKinnon, |
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> |
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> Thank you for your answer, I get you now you explained everything I |
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> needed to know. About my ISP, they changed it for me, since I was |
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> sending a lot of ticket support to them, because they have a poor |
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> support, I understand they don't manage and help me with a lot of |
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> things, basically I don't need them, the only thing I was asking for |
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> is to set the rDNS for me, hopefully they did, cause I told them, |
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> that I really don't understand what they mean by "do it by myself" |
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> and I was reading all BIND ebook to understad how delegation works. |
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> |
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> Regards |
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> |
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|
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Hi Carlos, |
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|
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I'm glad to hear you came right. |
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|
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Yes, having your ISP update their rDNS with your machine's name is the |
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best solution all round. |
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|
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|
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-- |
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Alan McKinnnon |
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alan.mckinnon@×××××.com |