[179471] in North American Network Operators' Group
Re: macomnet weird dns record
daemon@ATHENA.MIT.EDU (Colin Johnston)
Tue Apr 14 10:34:21 2015
X-Original-To: nanog@nanog.org
From: Colin Johnston <colinj@gt86car.org.uk>
In-Reply-To: <CALgsdbfiE_DvF-y4WJ1nqXCtnbZJ0w33z4a6x41xb-tS3XeO3w@mail.gmail.com>
Date: Tue, 14 Apr 2015 15:34:15 +0100
To: Pavel Odintsov <pavel.odintsov@gmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
so fix the spam hosts, don=E2=80=99t mask the problem and make more =
complicated for folks trying their best to solve
Colin
> On 14 Apr 2015, at 15:09, Pavel Odintsov <pavel.odintsov@gmail.com> =
wrote:
>=20
> Hello, Colin!
>=20
> 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.
>=20
>=20
>=20
> 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.
>>=20
>> 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 ?
>>=20
>> Colin
>>=20
>>=20
>>> On 14 Apr 2015, at 14:54, Nikolay Shopik <shopik@inblock.ru> wrote:
>>>=20
>>> Are Roman numerals allowed in DNS? Because I know some people also =
do them.
>>>=20
>>> dig -x 217.199.208.190
>>>=20
>>>=20
>>> On 14/04/15 16:45, Chuck Church wrote:
>>>> Comic Book Guy would probably declare:
>>>>=20
>>>> "Worst Naming Convention Ever"
>>>>=20
>>>> Chuck
>>>>=20
>>>> -----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
>>>>=20
>>>> 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
>>>>=20
>>>> Colin
>>>>=20
>>>>> On 14 Apr 2015, at 14:09, Nikolay Shopik <shopik@inblock.ru> =
wrote:
>>>>>=20
>>>>> How its weird? All these chars allowed in DNS records.
>>>>>=20
>>>>> 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
>>>>>>=20
>>>>>> range is blocked non the less since bad traffic from Russia =
network
>>>> ranges.
>>>>>>=20
>>>>>> Colin
>>>>>>=20
>>>>=20
>>=20
>=20
>=20
>=20
> --=20
> Sincerely yours, Pavel Odintsov
