Re: [Ekiga-list] unable to register my accounts

[yannick <sevmek free fr>]

Damien Sandras a écrit :
> Le mercredi 30 septembre 2009 à 00:49 +0200, Ennio-Sr a écrit :
>> * Damien Sandras <dsandras seconix com> [280909, 08:29]:
>>> Le dimanche 27 septembre 2009 à 22:42 +0200, Ennio-Sr a écrit :
>>>> Now I shall investigate a few other things, such as audio quality (worse
>>>> than in the past) and video (recognizes webcam but shows no image.
>>> Pulseaudio ? ;-)
>>>
>> Yes I have pulseaudio; in the meantime I succeded to set webcam working
>> (all I needed was a libpt-1.11.2-plugins-v4l2) and it works better than
>> in skype :-). Thanks for the great work you've done!
>>
>> I have just one curiosity: yesterday (on reboot) my PC was not
>> connecting to internet; finally I discovered it was a question of having
>> dropped an 's' in dns-nameservers .....However, being cut off from the
>> world I tried both Ekiga and Skype and while the former would not
>> connect (as any other web address) skype went on: how was that possible?
>> May be skype doesn't need literal address conversion because there is an
>> internal reference to its numerical address?
> 
> That's the only sane explanation I can imagine. Skype is working by IP
> and not by DNS names.

As skype is highly obfuscated we can Imagine a lot of things..

There is some technos to bypass DNS: a P2P software usualy keep a list
of peers using there IP addresses. When it reach one of them, the list
is refreshed with an exchange of living peers. It also possible to
implement your own DNS service in a P2P system: e.g. see this
implementation for the SIP protocol http://www.p2pns.org/

Best regards,
Yannick