lame-servers: error (FORMERR) resolving [something]
d.imbrogino at gmail.com
Fri Jan 11 09:05:16 UTC 2013
Port 53 is open, I can also telnet it from another box in the same network.
Now I think the problem can be on the packets size, because I'm trying
every solution but nothing works.
2013/1/9 Lyle Giese <lyle at lcrcomputer.net>
> On 01/09/13 08:39, Daniele wrote:
> 2013/1/9 Phil Mayers <p.mayers at imperial.ac.uk>
>> On 09/01/13 13:53, Daniele wrote:
>>> This is the scenario.
>>> I installed BIND9 via `apt-get` on a newly installed UBUNTU 12.04,
>>> virtualized on VirtualBox.
>>> The network works properly because if I indicate a different server from
>>> my own BIND9 (the first line of '/etc/resolv.conf' is, for example,
>>> `nameserver 220.127.116.11`) the lookups and any action on the Internet succeed.
>> No, this assumption is not valid.
> I meant that I can reach the Internet and, vice versa, the Internet can
> reach my terminal.
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> Recursive queries that named does for a client are different than your
> machine as a dns client reaching out to Google's recursive service.
> You need to have UDP & TCP port 53 open to your recursive server(the one
> running named) first of all. And if any network element within your
> network limits the size of UDP packets, you will have problems with EDNS0
> On this box running named, try this:
> dig +trace www.msn.com
> dig +trace imperial.ac.uk
> After dig gets a copy of the root servers from the local named, it will do
> the same type of queries that a recursive name server does.
> Lyle Giese
> LCR Computer Services, Inc.
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