Re: Me versus UPC (ziggo)

Hi Guys,

I reduced the MTU and it seems to work!!!  I started at 576 (a truly random
number) and will try increasing it this evening (out of curiosity).

1) Can you confirm that it makes sense? Is the fragmentation issue a
router/connection issue that would be unique (in this case) to ziggo?

So I will change the MTU on each of my machines (2 desktops, 4 laptops).

2) What is the trade-off with a smaller MTU.

thank you so much.
The thought of dealing with customer service in a foreign language, with a
use case as obscure as this, meant I was gonna cancel my account first and
ask questions later.


@Techbot <https://twitter.com/techbot>
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The Eclectic Meme Conspiracy <http://www.eclecticmeme.com>
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On Wed, Oct 21, 2015 at 12:30 AM, Paul Mc Auley <[email protected]> wrote:

> It was sort of called out earlier by David K above, but you might want to
> try dropping the MTU on your laptop and trying to connect again.
> If it's a combination of encapsulation and poor fragmentation handling
> that could cause something like this.
> I'd expect something on the order of 1400-1450 to get around most such
> cases.
>
> Paul
>
> On 20 October 2015 at 22:47, Jean-François Bucas <[email protected]>
> wrote:
>
>> do you have an extract of the log where the login succeeded?
>>
>> Perhaps you can try to start another SSH daemon no a different port (eg:
>> 443) and see how it goes?
>>
>> 2015-10-20 21:55 GMT+01:00 Rob Stocker <[email protected]>:
>>
>>> 46.19.37.66 is my server MrJigs
>>>
>>> My laptop is never on the same network as 46'.
>>>
>>>  46' is a VPS on tilaa.nl
>>>
>>> Normally I would not use any form of port forwarding at any of my
>>> connection points. (Ireland, previous flat,work etc)
>>>
>>> I logged in to '46 from work today and it was instantly business as
>>> usual, this issue is unique to my connection in new home.
>>>
>>> I cannot SSH into my work server either (not owned or run by me, so
>>> completely different location and config),  I'm still thinking it's related
>>> to router or connection.
>>>
>>> ** I can use SSH via Phpstorm to upload a file provided it is really
>>> small , 600 bytes.**
>>>
>>> The screen shot below is of /var/logs/auth.log on 46'. it repeats for 3
>>> days . There are 110,000 lines for 3 days 18th,19th and 20th
>>>
>>> [image: Inline image 1]
>>>
>>> @Techbot <https://twitter.com/techbot>
>>> ----------------------------------------------
>>> The Eclectic Meme Conspiracy <http://www.eclecticmeme.com>
>>> ----------------------------------------------
>>>
>>> On Tue, Oct 20, 2015 at 6:02 PM, Maciej (Matchek) Bliziński <
>>> [email protected]> wrote:
>>>
>>>> Is your server and your laptop in the same internal network? If so, you
>>>> need to set up hairpin nat. Microtik wiki has an explanation.
>>>>
>>>> A ter, 20/10/2015, 16:52, David Kernan <[email protected]> escreveu:
>>>>
>>>>> So seeing a connection closed result would mean you're being sent a
>>>>> TCP RST packet somewhere, which is closing the connection.
>>>>> Is there anything useful in /var/log/auth.log log file?
>>>>>
>>>>> On Tue, Oct 20, 2015 at 4:49 PM, Jean-François Bucas <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> anything in your 46.19.37.66:/etc/hosts.deny file?
>>>>>> do you have any relevant lines in 46.19.37.66:/var/log/auth.log ?
>>>>>>
>>>>>> 2015-10-20 16:38 GMT+01:00 Rob Stocker <[email protected]>:
>>>>>> >
>>>>>> >> Any firewall on your server in NL,  ie: fail2ban, denyhost, ... ?
>>>>>> >
>>>>>> >
>>>>>> > Nope.
>>>>>>
>>>>>> --
>>>>>> Irish Linux Users Group
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>>>>>> .
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Best regards,
>>>>>
>>>>> David
>>>>>
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>>>>> Irish Linux Users Group
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>>>>> <https://groups.google.com/a/linux.ie/d/msgid/ilug/CABnDWJDg-ydGkJ5UgiZA%2BSzMZ%2BBaNixwT-_dbv5LYGKz%3DsmCXQ%40mail.gmail.com?utm_medium=email&utm_source=footer>
>>>>> .
>>>>>
>>>>
>>>
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>> <https://groups.google.com/a/linux.ie/d/msgid/ilug/CAK_fzWr0pS2mxT9cUhxis_RkfP-V6wpAmnW4UoUaL7HgFzrKNw%40mail.gmail.com?utm_medium=email&utm_source=footer>
>> .
>>
>
>

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