macomnet weird dns record

Tue Apr 14 14:35:33 UTC 2015

But I'm not a spam source. I banned for netmask which similar to ISP subnet.

On Tue, Apr 14, 2015 at 5:34 PM, Colin Johnston <colinj at gt86car.org.uk> wrote:
> so fix the spam hosts, don’t 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 at gmail.com> wrote:
>>
>> 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 at 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 at 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 at nanog.org] On Behalf Of Colin Johnston
>>>>> Sent: Tuesday, April 14, 2015 9:27 AM
>>>>> To: Nikolay Shopik
>>>>> Cc: <nanog at 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 at 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
>

-- 
Sincerely yours, Pavel Odintsov