looks like i have got the issue. Any requests comes from the ip located in
geo.conf will be forwarded to a domain whose ip resolve into 110.93.X.X.
Now when a request comes from the ip 110.93.X.X , nginx somehow unable to
proxy_pass this prefix(110.93.X.X) it to the ip 110.93.X.X and shows the
bad gateway error.


On Fri, Jun 20, 2014 at 9:57 AM, shahzaib shahzaib <shahzaib.cb@gmail.com>
wrote:

> Issue will only resolve once i remove 110.93.192.0/18 US; from geo.conf.
>
>
> On Fri, Jun 20, 2014 at 9:55 AM, shahzaib shahzaib <shahzaib.cb@gmail.com>
> wrote:
>
>> I removed /24 on per your suggestion and also used different code for
>> override but the issue persists. Modified geo.conf :-
>>
>> 39.49.59.0/24 PK;
>> 110.93.192.0/18 US;
>>
>> 117.20.16.0/20 TW;
>> 119.63.128.0/20 TW;
>> 202.163.104.6/32 ARY;
>> 203.124.63.0/24 CM;
>> 221.132.112.0/21 TW;
>>
>> 110.93.192.0/24 TW; is not added now.
>>
>>
>> On Fri, Jun 20, 2014 at 1:12 AM, Steve Wilson <lists-nginx@swsystem.co.uk
>> > wrote:
>>
>>> These 2 overlap
>>>
>>> 110.93.192.0/24 TW;
>>> 110.93.192.0/18 TW;
>>>
>>> The /24 is within the /18. In this instance you want to remove the /24.
>>>
>>> It might be worth investigating if you've got any others that overlap. I
>>> think you can probably override with a different country code but using the
>>> same makes no sense.
>>>
>>> Steve.
>>>
>>>
>>> On 19/06/14 21:06, shahzaib shahzaib wrote:
>>>
>>> For testing purpose, i have added only few prefixes :-
>>>
>>> geo {
>>> default 0;
>>> include geo.conf;
>>> }
>>>
>>> geo.conf
>>>
>>> 39.49.59.0/24 PK;
>>> 110.93.192.0/24 TW;
>>> 110.93.192.0/18 TW;
>>> 117.20.16.0/20 TW;
>>> 119.63.128.0/20 TW;
>>> 202.163.104.6/32 ARY;
>>> 203.124.63.0/24 CM;
>>> 221.132.112.0/21 TW;
>>>
>>>
>>> Now, whenever some ip from the list send request, nginx reply with
>>> gateway timeout :-
>>>
>>> curl -I
>>> http://files.com/files/videos/2014/06/10/14023918368e3411-240.mp4
>>> HTTP/1.1 504 Gateway Time-out
>>> Server: nginx
>>> Date: Thu, 19 Jun 2014 19:59:50 GMT
>>> Content-Type: text/html
>>> Content-Length: 176
>>> Connection: keep-alive
>>>
>>> In order to resolve this error, i have to manually remove a network
>>> from the file which is 110.93.192.0/18 TW;
>>>
>>> What so suspicious with this prefix 110.93.192.0/18 TW ? Why it is
>>> causing to crash every other requests ?
>>>
>>>
>>>
>>> On Fri, Jun 20, 2014 at 12:07 AM, Jonathan Matthews <
>>> contact@jpluscplusm.com> wrote:
>>>
>>>> On 19 June 2014 19:59, shahzaib shahzaib <shahzaib.cb@gmail.com> wrote:
>>>> > We've added 2000+ ip prefixes in a file "geo.conf" included in nginx
>>>> vhost
>>>> > by using ngx-http_geo_module and received the following warning :-
>>>> >
>>>> > 2014/06/19 23:52:46 [warn] 1633#0: duplicate network "103.24.96.0/22
>>>> ",
>>>> > value: "tw", old value: "tw" in /usr/local/nginx/conf/geo.conf:40
>>>>
>>>> What makes you think that this error message is incorrect?
>>>> If it's correct and you have a duplicate entry, resolving the problem
>>>> should be pretty simple ...
>>>>
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>>>> http://mailman.nginx.org/mailman/listinfo/nginx
>>>>
>>>
>>>
>>>
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>>
>>
>
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