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From Matthias Seidel <matthias.sei...@hamburg.de>
Subject Re: openoffice.org slowness
Date Sun, 07 Jan 2018 11:06:14 GMT
Hi Andrea,

I can confirm this behavior. When I ping openoffice.org, the IP changes
every second try:

$ ping openoffice.org
PING openoffice.org (88.198.26.2) 56(84) bytes of data.
^C
--- openoffice.org ping statistics ---
10 packets transmitted, 0 received, 100% packet loss, time 9219ms

$ ping openoffice.org
PING openoffice.org (140.211.11.105) 56(84) bytes of data.
64 bytes from themis.apache.org (140.211.11.105): icmp_seq=1 ttl=42
time=178 ms
64 bytes from themis.apache.org (140.211.11.105): icmp_seq=2 ttl=42
time=178 ms
64 bytes from themis.apache.org (140.211.11.105): icmp_seq=3 ttl=42
time=180 ms
64 bytes from themis.apache.org (140.211.11.105): icmp_seq=4 ttl=42
time=177 ms
^C
--- openoffice.org ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 177.699/178.769/180.838/1.331 ms

88.198.26.2 is unreachable, 140.211.11.105 works as expected.

Regards, Matthias


Am 07.01.2018 um 01:02 schrieb Andrea Pescetti:
> On 05/01/2018 Dave Fisher wrote:
>> See the IP Addresses and if they are on the same continent as you
>> when you have trouble. See if the trace route has high latency.
>
> Thanks, this will indeed help a lot in troubleshooting and I have
> interesting results:
>
> $ wget it.openoffice.org
> http://it.openoffice.org/
> Resolving it.openoffice.org (it.openoffice.org)... 88.198.26.2,
> 140.211.11.105, 2a01:4f8:130:2192::2
> Connecting to it.openoffice.org (it.openoffice.org)|88.198.26.2|:80...
> failed: Connection timed out.
> Connecting to it.openoffice.org
> (it.openoffice.org)|140.211.11.105|:80... connected.
> [ and then the download occurs normally ]
>
> So basically the first choice for me is 88.198.26.2 and that one times
> out.
>
> For some reason,
> $ traceroute www.openoffice.org
> always picks up 140.211.11.105 so it works fast.
>
> But if I run
> $ traceroute it.openoffice.org
> it gets lost somewhere in the Hetzner network in Germany:
>
> $ traceroute it.openoffice.org
> traceroute to it.openoffice.org (88.198.26.2), 30 hops max, 60 byte
> packets
>  1  [irrelevant local network, omitted] ...
>  7  ae3-1.fra20.core-backbone.com (80.81.192.187)  36.559 ms  58.253
> ms  57.011 ms
>  8  ae1-2014.nbg40.core-backbone.com (81.95.15.206)  49.496 ms  48.844
> ms  45.724 ms
>  9  core-backbone-100g-nbg.hetzner.de (81.95.15.6)  43.109 ms  44.708
> ms  45.224 ms
> 10  core12.nbg1.hetzner.com (213.239.229.165)  48.203 ms
> core11.nbg1.hetzner.com (213.239.229.161)  48.010 ms  43.750 ms
> 11  core21.fsn1.hetzner.com (213.239.245.222)  49.932 ms
> core21.fsn1.hetzner.com (213.239.224.14)  57.115 ms  55.405 ms
> 12  ex9k1.dc4.fsn1.hetzner.com (213.239.229.146)  52.779 ms  51.393 ms
> 57.072 ms
> 13  * * *
> 14  * * *
> 15  * * *
> 16  * * *
> 17  * * *
> ...
> 30  * * *
>
> I think this shows that indeed we need someone to check that DNS record.
>
> Regards,
>   Andrea.
>
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