[Wylug-help] Wifi DNS Problems

[Jim Jackson]

Not sure if you sorted this, but....

As well as handing out an IP address, subnet mask and default router, a 
networks dhcp servers will serve up the name servers to use on that 
network. There is usually some magic that populates /etc/resolv.conf with 
the correct name servers the the dhcpclient software gets the info. 
Sometimes this magic is messed up.

It looks like the /etc/resolv.conf file is "hard coded" for working on your 
home network - using name servers valid for your ISP, that won't respond
to outside queries.

I googled "ubuntu resolv.conf not getting updated by dhcp" I got some hits 
that might help. 

cheers
Jim


On Tue, 4 Nov 2014, Dave Fisher wrote:

> For some weeks now, I seem to have lost dns lookup capabilities over
> other people's wifi networks on my Acer 720 (running Ubuntu LTS).
> 
> The weird thing is that I have no problem whatsoever on my home wifi
> network, which presumably follows similar rules.
> 
> I can authenticate and connect to any network, but am completely
> unable to route through to the internet.
> 
> I've never really understood Network Manager and forgotten most of
> what I used to know about setting routing etc via ifconfig, so can
> someone suggest some sort of diagnostic procedure that I could use to
> identify the actual problem?
> 
> Thanks
> 
> D
> 
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