[179467] in North American Network Operators' Group
Re: macomnet weird dns record
daemon@ATHENA.MIT.EDU (Pavel Odintsov)
Tue Apr 14 10:14:19 2015
X-Original-To: nanog@nanog.org
In-Reply-To: <0A153EBC-11FB-46E1-8FB7-3A16490FFC3E@gt86car.org.uk>
Date: Tue, 14 Apr 2015 17:09:48 +0300
From: Pavel Odintsov <pavel.odintsov@gmail.com>
To: Colin Johnston <colinj@gt86car.org.uk>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Hello, Colin!
We use hexademical numbers in PTR for VPS/Servers because PTR's like
"host-87.118.199.240.domain.ru" so often banned by weird antispam
systems by mask \d+\.\d+\.\d+\d+ as home ISP subnets which produce
bunch of spam.
On Tue, Apr 14, 2015 at 5:00 PM, Colin Johnston <colinj@gt86car.org.uk> wrote:
> Hi Nikolay, I have obvious hit a cultural nerve here, if so I am sorry.
> At least there is communication on some level, Chinese colleagues would not even bother to respond to aid debug.
>
> Be that as it may, why not use either normal decimal numbers or normal characters to show what a normal person would understand instead of having to convert the shown output ?
>
> Colin
>
>
>> On 14 Apr 2015, at 14:54, Nikolay Shopik <shopik@inblock.ru> wrote:
>>
>> Are Roman numerals allowed in DNS? Because I know some people also do them.
>>
>> dig -x 217.199.208.190
>>
>>
>> On 14/04/15 16:45, Chuck Church wrote:
>>> Comic Book Guy would probably declare:
>>>
>>> "Worst Naming Convention Ever"
>>>
>>> Chuck
>>>
>>> -----Original Message-----
>>> From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of Colin Johnston
>>> Sent: Tuesday, April 14, 2015 9:27 AM
>>> To: Nikolay Shopik
>>> Cc: <nanog@nanog.org>
>>> Subject: Re: macomnet weird dns record
>>>
>>> Because looks strange especially if the traffic is 100% bad Best practice
>>> says avoid such info in records as does not aid debug since mix of dec and
>>> hex
>>>
>>> Colin
>>>
>>>> On 14 Apr 2015, at 14:09, Nikolay Shopik <shopik@inblock.ru> wrote:
>>>>
>>>> How its weird? All these chars allowed in DNS records.
>>>>
>>>> On 14/04/15 15:36, Colin Johnston wrote:
>>>>> never saw hex in host dns records before.
>>>>> host-242.strgz.87.118.199.240.0xfffffff0.macomnet.net
>>>>>
>>>>> range is blocked non the less since bad traffic from Russia network
>>> ranges.
>>>>>
>>>>> Colin
>>>>>
>>>
>
--
Sincerely yours, Pavel Odintsov
