Fedora 14 - Firefox won't go online

[Agust]

Hi,

I'm fairly new to the world of open source. Have used Ubuntu - now trying Fedora - setting it up as a home media server.

Fresh Fedora 14 install on 1gb ram old hardware.

Can't get online in Firefox.

Checking connection information I can see the correct subnet mask, default route, primary and second dns etc. all make sense and match my windows 7 that is connected to the same router.

The ip address under Fedora connection information is 192.168.1.100 and when I ping that from my windows 7 I get a reply.

I've tried this thread http://forums.fedoraforum.org/showthread.php?t=200805
Tried changing the about:config ipv6 settings in Firefox and tried
su -c " /sbin/chkconfig NetworkManager off
- problem persists...

Logging into my router I can see the ip address 192.168.1.100 in the DHCP client list and the hardware address matches the one in Fedora connection information.

So - from my observation: I can ping the computer from the outside which means the network card is up and running. Connection info shows the correct information which confirms that the OS is communicating with my home router. But Firefox won't go online for some reason.

Any hints?

[bob]

moved to EOL

[xjonquilx]

Have you tried a different browser to see if it's a browser related issue? That would be my next step.

[Agust]

I can't install any thing from comand line - something like:
http://www.if-not-true-then-false.co...ora-using-yum/
does not work because the repo won't download (no connection).

I don't have the knowledge to install through a usb... because of the lack of connection from command line it seems to be an OS issue?

Based on the fact that the machine answers ping - it seems the network card is up and running?!?

Perhaps I need to update the driver for the network card?

[marko]

Try disabling all IPv6 support in the ethernet interface, there's instructions in various threads on how.

[xjonquilx]

Here's a link: http://www.php2s.com/linux/how-to-di...an-redhat.html

[Agust]

Thanks for the input,

I tried
--
On them disabling IPv6 is done by editting /etc/sysconfig/network and adding:

NETWORKING_IPV6=no
IPV6INIT=no
-- from here:
http://www.php2s.com/linux/how-to-di...an-redhat.html

Restarted - launched Firefox - no connection.

Can still ping the computer from the outside... I baffled :-)

[marko]

1) Confirm that you have a valid route with :

route -n

(post that result here, the critical thing is you should see a "UG" Flags entry, that's the gateway)

2) confirm your /etc/resolv.conf is good, there should be the address to the DNS server/gateway/router there
post that to the thread here too if you want (if you're not sure what is good)

I see in post #1 you disabled NetworkManager, you know that if you do that you then have to enable "network" service right? Did you do that? Also using chkconfig isn't enough, you either have to reboot or manual run "service NetworkManager stop" and
"service network start" to implement those changes
The full list of steps to go from NM to network:

chkconfig NetworkManager off
chkconfig network on
(do any configuration to your network interface here, could be done via system-config-network or by hand)
service NetworkManager stop
service network start

Or you can skip the last two lines and just reboot (since the chkconfig was done, Fedora will start network automatically as it boots)

[Agust]

Result of route-n:
--
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0
0.0.0.0 192.168.1.2 0.0.0.0 UG 0 0 0 eth0
--

resolve.conf
--
search f3
nameserver 194.144.200.64
nameserver 213.176.128.51
--
The ip address of my router is 192.168.1.2 - should that be in resolve.conf?

Regarding NetworkManager - network service is enabled.

Thanks for commenting...

---------- Post added at 03:15 PM ---------- Previous post was at 03:13 PM ----------

Does search f3 mean that the machine is trying to connect to a domain called f3? I did name my computer mediaserver.f3 at install - but did not do anything else domain wise that I know of.

[marko]

192.168.1.2 doesn't have to be in your resolv.conf if you've set up your network to use other dns hosts and not your router/dialer/gateway. For example my resolv.conf is set to point to the opendns hosts,

nameserver 208.67.222.222
nameserver 208.67.220.220

because I found my ISP (verizon) was doing odd things to my dns results for web searches. You can configure either networkmanager or network to plug in your own DNS addresses and ignore the ones the ISP tries to feed you.

The "search f3" just means that if you do a dns lookup by short name on your computer:

dig hostofinterest
or
host hostofinterest

it would look for the host in the dns by long name: hostofinterest.f3

Basically it would append "f3" as the domain. Do you want that? If you get rid of "search f3" from the resolv.conf, Fedora defaults to
using the local domain, it might be "localdomain" or something like that. Just don't make your local domain name literally be "local",
I did that once and it's bad (local is a reserved name that has a special meaning)

UPDATE: ok, I just saw your last sentence, I think you do want "f3" as the domain in your local private network, that is, "host mediaserver" would get the IP on your network of "mediaserver.f3"

[Agust]

Yes - I just want the name of the computer to be mediaserver.f3 - or actually I don't care what it is called - I just need it to be online :-)

From what you wrote - I should remove f3 because there should not and need not be any f3 domain - I just want the default local domain - just a router and a set of computers - nothing fancy (if that makes sense)

Agust

---------- Post added at 05:43 PM ---------- Previous post was at 05:41 PM ----------

One more thing - at the top of the resolve file there was:
#generated by network manager

---------- Post added at 05:46 PM ---------- Previous post was at 05:43 PM ----------

Update: After editing resolve and removing the "search f3" line - and restarting - the ethernet connection dissapeared :-)

Reinstalling and using Fedora 15 or 16 is beginning to be tempting... a pity that I can't figure this out.

Is there a possibility that my network card simply (part of the mainboard) is flawed? Just a couple of weeks a go, with another OS on the same steel - it worked great...

[marko]

Originally Posted by Agust

Is there a possibility that my network card simply (part of the mainboard) is flawed? Just a couple of weeks a go, with another OS on the same steel - it worked great...

you can use "lspci" to see the hardware, that is, if lspci has a statement about the "Ethernet Controller" then the hardware is at least powered up and seen. You can then try 'ethtool' to see that the interface has
correct looking settings

ethtool eth0

Look for "Link detected: yes" and make sure the "speed" and "duplex" values look good (duplex should be "full")

Maybe you can try

ethtool -t eth0 online

to test the interface (option online restricts it to tests that can be done when connected and "offline" to do them all )