macomnet weird dns record

Colin Johnston colinj at gt86car.org.uk
Tue Apr 14 14:34:15 UTC 2015


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




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