[kwlug-disc] Ubuntu 12.04 LTS localhost* and internet fail - where to start?
jvj at golden.net
Wed Apr 9 10:51:22 EDT 2014
Thanks for the tip: was looking for something like this.
Troubleshooting round four:
Pings with named ping destinations fail on both the Linux and Windows boxes.
e.g. c:\>ping https://www.google.ca c:\>ping http://www.google.ca
One of the destinations recommended in the link above, ping 126.96.36.199
works on the Windows box.
The Linux box however is still failing.
On the Linux box, the error message returned for ping 188.8.131.52 is
different from ping http://www.google.ca.
For the google.ca, I see "unknown host".
For 184.108.40.206 I see: from 192.168.0.1 icmp_ .... Destination Net Unreachable.
Looks like the router is blocking the Linux box.
Rebooted router. NADDA.
Troubleshooting round five:
Bypassed the Dlink router. Connected Linux box direct to DSL modem.
Setup Ubuntu > Settings > Network as req'd to dial on the DSL modem as
opposed to wired connection.
FF on Linux box works.
The issue with the Dlink router not the Linux box per se.
Disconnected the Linux box, reconnected router and Windows box.
How do I set up Ubuntu with more than Network connection configuration?
1) (default) wired connection through router (w/o 'dialer' settings)
2) DSL modem with 'dialer' settings
On 2014-04-09 09:53, L.D. Paniak wrote:
> Can you ping a site on the internet from clients? eg 220.127.116.11
> 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.
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> Checked by AVG -www.avg.com
> Version: 2014.0.4355 / Virus Database: 3882/7318 - Release Date: 04/08/14
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