Re: different icons if internet is available

[Dan Williams <dcbw redhat com>]

On Sat, 2007-05-19 at 11:59 +0000, yelo_3 wrote:
> Maybe http connect would be the most complete choice between the 3 you gave
> But I'm still wondering how this is implemented in windows..
> 
> if you can be http connected with gnome.org you are quite sure you can at least http connect to the most internet sites (unless your firewall/proxy is configured to let you connect only to this, so it might be a solution to not only check gnome.org, but other sites too - maybe your distribution site), except filtered hosts.
> Again, I suppose that if gnome.org and your-distribution.org are reachable this means that your admin has not blocked the access to most web pages... What do you think?
> 
> No solution for p2p or IM in my mind, suggestions accepted.
> 
> Anyway my ISP is blocking MAIL and hily limiting p2p flows, but this does not mean that I'm not connected to the internet, does it?
> For sure your ISP is censoring some web pages even if you don't know, but you are on internet too!
> 
> The definition of "being on internet" is definitely not easy... 
> But it is possible to make suppositions. This is my opinion

Captive portals for Wifi also make this really, really hard.  I'm not
necessarily opposed to it, but I feel like it's something that shouldn't
be in NM itself, but in a plugin of some sort so people can use it if
they want to.

The problem with this sort of check is that it makes various people
really angry.  It makes admins angry, because it's essentially (to them)
useless traffic, and what happens when you have 100 machines with NM on
them with this enabled?  It makes some users angry because NM is
generating useless (to them) traffic because they already know.  It's
also a really hard problem to determine if you actually _are_ on the
internet due to captive portals, firewalls, NATs, etc.  So in the end,
it shouldn't be on by default.

Dan

> What is yours?
> 
> Thank you.
> 
> ----- Messaggio originale -----
> Da: Nikolaus Filus <nfilus gmx net>
> A: network manager <networkmanager-list gnome org>
> Inviato: Sabato 19 maggio 2007, 13:31:33
> Oggetto: Re: different icons if internet is available
> Hi,
> 
> yelo_3 wrote:
> > I've implemented the most code, except the function that decides if internet is available or not.
> > In fact I'm thinking of this problem.
> > http://bugzilla.gnome.org/show_bug.cgi?id=439310
> > an isolated network access cannot of course reach the most internet locations
> > 
> > we could discuss on this... for instance in might be:
> > internet on if ubuntu.com and gnome.org are reachable
> > otherwise internet off.
> > 
> > Of course it is not a complete solution, it is only a try.
> 
> what do you mean by "gnome.org is reachable" - is it, if you can
> 1) dns lookup www.gnome.org
> 2) ICMP echo www.gnome.org
> 3) http connect www.gnome.org
> 
> so what if
> 1) there is a firewall or
> 2) a transparent proxy
> in between and you get a positive answer for one of the above tests or only some
> filtered hosts? The user would see "internet is on", but his IM, p2p, mail or
> anything else doesn't work as suspected.
> 
> 
> Yes, I'm also annoyed, that beeing connected through NM and cisco VPN my
> gaim/pidgin thinks it can connect to its servers and shows error popups all the
> time.
> But at the same time, I don't see a general-purpose solution for the problem.
> 
> 
> 
> Just my 2 �
> 
> 
> Nikolaus
> 
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