set up wifi hotspot (share internet connection)

[Nils Kassube]

Liviu Andronic wrote:
> On Sat, Apr 27, 2013 at 10:04 PM, Nils Kassube <kassube at gmx.net> 
wrote:
> > That's very good, the Atheros wifi chips can be used for AP mode.
> > Then you should install the package "hostapd" and you can let your
> > machine work as an access point with WPA2 encryption. IIRC you can
> > setup the AP with the hostapd configuration [1].
> 
> Hmm, I found a GUI that allows to set up hostapd, called
> wifi-hostapd-ap, ( https://code.google.com/p/wifi-hostapd-ap/ ), but
> when I run it tells me:
> "DNSMAQS already in use
> 
> Warning! It seems that DNSMASQ already in use on your system, as the
> local DNS. For correct operation of the program, you must disable the
> local DNS. Before proceeding, please close all connections to the
> Internet. Continue?"
> 
> When I press cancel, it then tells me:
> "To use the program must have full access to DNSMASQ."
> 
> I tried to disable Networking in NM and then run the utility again,
> but I get the same message. Any ideas on how I could disable the local
> DNS?

Now that you mention it, I remember that dnsmasq is running by default 
on recent *Ubuntu systems. I wasn't aware that it is needed with 
hostapd, but it makes sense indeed. On a (virtual) 13.04 machine I can 
see that dnsmasq is started. But unfortunately I have no idea which 
programm starts it, so I can't tell you how to disable it. Hopefully 
there is someone more knowledgeable here who can help you further.


Nils