[kwlug-disc] Ubuntu 12.04 LTS localhost* and internet fail - where to start?

[L.D. Paniak]

Can you ping a site on the internet from clients? eg 4.2.2.2
If not, you have no connectivity to the internet. Check
cables/routing/gateway config.

If so, can you ping a site by name: google.ca
If not, check DNS. 


On 04/09/2014 09:46 AM, John Johnson wrote:
> Ubuntu 12.04 LTS localhost* and internet fail (w/FF)- where to start?
>
> My Linux box is, all of a sudden, failing to connect to the internet.
> I was on a site earlier when the site (and others) started returning
> the FF "server not found" (404) message.
>
> Actually, I have made, I think, a good start (see below).
> I am asking where do I go now?
>
> Troubleshooting round one:
> Boot. Reboot. Ubuntu restart. etc.
> re-wired Linux box to Router connections.
>
> Troubleshooting round two:
> Linux box > terminal > ping 192.168.0.1 (Dlink router) are OK
> Linux box > terminal > ping 192.168.0.115 (Windows box) OK
> Linux box > terminal > ping 192.168.0.101 (loop back to Linux box) OK
> Linux box > terminal > ping localhost (loop back to Linux box via
> LAMP) OK *
> Windows box > cmd window > ping 192.168.0.1 (Dlink router) are OK
> Windows box > cmd window > ping 192.168.0.101 (Linux box) are OK
> Windows box > cmd window > ping 192.168.0.115 (loop back Windows box)
> are OK
> Windows box > cmd window > ping localhost (loop back to Windows box
> via XAMPP) are OK
>
> *ping localhost was failing on the Linux box when I started
> troubleshooting. Working now.
> FF internet access still fails.
>
>
> Troubleshooting round three:
> Suspecting that the issue may be isolated to FF:
> FF restarted in safe-mode. i.e. with add-ons disabled: still fails
> Attempted bypass of FF through Ubuntu Software Centre and install of
> Chromium browser: fail.
>
> Analysis: The issue does not look to be isolated to FF.
>
> Thanks
> JohnJ
>
>
>
>
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