[Bug 993794] Re: Precise resolvconf+dnsmasq setup breaks logging in some wireless networks

[Sergio Callegari]

Hi,
unfortunately, I have read your message too late and I cannot perform the test. I can however provide some additional info.

Our dhcp server provides the addresses of 3 nameservers. The first
server is internal to our network and is the only one that can resolv
the name of the web server that offers the authentication window. It is
also probably the slower. The other two servers are external and cannot
resolve the name of the internal authentication server.

I have a feeling that when these 3 nameservers go into resolv.conf, the
resolver library tries them in order. Hence, the internal server is
queried first and provides the name. Conversely, when these nameservers
go into the dnsmasq conf and names start getting resolved with dnsmasq,
the order is not followed anymore and the first server to answer says
that the name cannot be resolved.

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https://bugs.launchpad.net/bugs/993794

Title:
  Precise resolvconf+dnsmasq setup breaks logging in some wireless
  networks

Status in “resolvconf” package in Ubuntu:
  New

Bug description:
  Hi,

  our academic wifi, is protected with authentication practiced with a
  web page. The wifi network looks to be open to anyone, but to operate
  it after having connected the wifi you need to open a web page. This
  will automatically redirect you to an authentication page and after
  you are authenticated you can work on the wifi.

  The problem is that with precise you can never get to the
  authentication page, since its url cannot be resolved.

  The thing used to work fine with previous ubuntus and works fine with
  Windows.

  Thanks in advance for looking into it.

  Sergio

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