internet problem: Firefox can load google, but not any others!
 

Using Ubuntu 6.06, after starting my dsl connection (of course) my browser can surf Google website, but not any other!!!!!!!!
(the weirdest problem of ever)

I mean: I can search Google, I can see Google Images, Google Groups and so on, but if I use other websites Firefox tell me "waiting response from ......."

I tried with a lot of websites.... Yahoo and others big ones too.
They works ok, it the browser having problems.....

Anyone know the solution?

thanks a lot for your help!

ping works with any addresses, but the browser not :confused:

some suggestions?

In Firefox: Edit > Preferences > Connection Settings, is there a proxy set?

no....
it's not only a firefox problem

I just installed Opera and there is the same beaviour, too!
Only google and sub sites are reachable!
but ping works with all internet addresses.... there is no firewall.....
:eek: :confused:

Are you behind a router? You may want to check router settings, or pop in a live cd and see if its an install issue or a network issue

Does ping work on IP address or url like www.linuxquestions.org? How about putting "http://64.179.4.146" in Firefox/Opera?

I don't have any router
I have an ethernet modem

ping linuxquestions.org works

putting "http://64.179.4.146" in Firefox, I get in the taskbar of firefox the message "waiting for linuxquestions.org"
so it cannot be a dns problem, because the browser understand "http://64.179.4.146" is "linuxquestions.org"

If I put "www.yahoo.es" I get "waiting for es.yshoo.com" so there is an initial connection between the browser and the site, because the browser knows "yahoo.es" redirect to es.yahoo.com, but aftger I cannot load any website

Google site and sub sites (google images, google groups, etc.) all works :confused:

Sorry, I'm a newbie, too, so I might be asking at a low level:

At System > Administration > Networking > DNS, is there any DNS server set, and which (I might try that one)?

- Hopefully, some ueberguru will come and solve this! ^^ ;)

there are no DNS server set.........

The most common show-stoppers should have been mentioned, already.

Are there any other details, i.e., on your internet service provider, the way you're connecting to the internet, etc., you might think of being relevant?

Here is what I would do,

from cmd line, try "telnet www.linuxquestions.org 80", if this works, I would think that the http requests from your browsers are re-directed to somewhere else (an anonymous proxy?). I would then use a sniffer (tcpdump or ethereal) to trace where the packets go. If telnet can not connect to the destination, I would check the rules in your iptables by "iptables -D".

Hope it helps.

If you're using Gnome System-> Administration-> Network Settings. eth0 should be active and modem should be not configured. Select Ethernet and then the Properties button. This would normally be set to DCHP. Perhaps you need to disable IPv6. By default Ubuntu will try both IPv6 and IPv4 for each transaction. It uses IPv4 after IPv6 times out. I don't know where you are but IPv6 probably isn't available yet. For some reason having IPv6 enabled makes DNS transaction take a long time.

- it's a fresh install in my pc home, so it's difficult (impossible) someone set a proxy..... :), I connect directly with the ISP
- the modem is not configured
- the ethernet card is configured with DHCP
- I have done a flush of iptables, using "iptables -F", so there are no rules in my firewall.... (I have done this thinking was the firewall blocking my connections, but it isn't.....)

now, I will try telnet command.....

:study: I think the IPv6 suggestion is the most suspect..... How can I disable at all IPv6 with Ubuntu? so it uses always and only IPv4 ?

"telnet www.linuxquestions.org 80" works.....

How can I check if IPv6 is enabled o disabled?
I googled internet searching how to disable it, but after the suggestions, nothing canged... so the first step is to check if it's really disabled or not.....

To turn off IPv6 create a text file /etc/modprobe.d/bad_list with the following lines:

#added to disable IPV6
alias net-pf-10 off

This file will be oowned by root, group root.