G'day,
Many thanks to Heracles, Amos, James and Peter.
I think, time will tell, I have got it working.
Firstly I disabled by Firewall, hoping the modem's one is good enough.
Turns out there is a problem with my modem. There are numerous threads
about regarding it not connecting, something to with DNS serving. So I
updated the firmware (from B02 to B13) and know everything is working as
it should without have to change any settings from the norm, and the
connection has stayed up.
So, all is well with my Linux again :-)
Thanks again,
Muz.
[EMAIL PROTECTED] wrote:
On Friday 14 September 2007 07:54:04 [EMAIL PROTECTED] wrote:
Don't know if this helps, but I have managed to disable the ADSL
connection to my windows machine by installing a firewall. Enable it
and I can't connect to the web, even though firefox is an allowed
program. When I disable it, everything is working again.
More head scratching...
Typically your modem is a router giving DHCP information to the network
machines.
In this case a firewall does NOTHING positive for you: The modem forwards
NOTHING to your machine, so no firewall is indicated.
Ubuntu has no built in firewall, others need to have it turned off.
You need to have DHCP enabled or else you must know all the network details:
modem IP, DNS servers, your own IP etc.
Likewise a firewall on your windows machine is valueless.
Typically your firewall must allow ESTABLISHED,RELATED back but eg guarddog
for ubuntu does not. Who knows what your firewall is doing. Don't use it.
(The modem/router allows nothing from out to in and allows all inside stuff
back [and it gets very complicated])
Now you can start:
can you ping your modem? can you ping when you can't connect to internet?
James
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