Getting on Internet with 13

Jerry Feldman gaf at
Thu Jul 1 11:46:34 UTC 2010

On 06/30/2010 11:08 PM, John Clark wrote:
>   On 6/30/2010 2:35 PM, Jerry Feldman wrote:
>> On 06/29/2010 07:50 PM, John Clark wrote:
>>>    I can't seem to get my browser/email to connect to Internet. In
>>> terminal I can ping to my hearts content but I can't
>>> connect to it with Firefox. I have no hair to pull out and I don't want
>>> to pull scalp. BTW, Ubuntu gets on just fine, out of the box, but I
>>> can't stand Debian Linux.
>> Assuming you have a router and that Ubuntu works fine through the router:
>> from a gnome terminal try:
>> netstat -nr.
>> Make sure the default route ( is pointing at the correct
>> interface (eg eth0).
>> Check your name servers (cat /etc/resolv.conf).
>> Since you can ping, you should be ok, but sometimes these steps will
>> show you what the problem is.
>> Make sure your browser is not trying to connect through a proxy server.
>> Minor misconfigurations can cause some interesting problems (such as my
>> Thunderbird issues and I should have known better).
>> Again, use telnet (as said previously) to make sure your firewall is not
>> blocking outbound ports 80 or 25.
>> [gaf at rosetta ~]$ telnet 80
>> Trying
>> Connected to (
>> Escape character is '^]'.
>> ^]
>> telnet>  quit
>> Connection closed.
> I cannot telnet out,
> 'cat /etc/resolv.conf' yields
> nameserver
> #Generated by NetworkManager
> domain home
> search home
> and  'netstat -nr' yields
> Kernel IP routing table
> Destination    Gateway        Genmask            Flags    MSS    
> Window        Irtt    Iface
>     U            0        
>      0                0    eth0
>                    UG        0    
>          0                 0    eth0
> also, the upgrades work too.
I assume should be

For 1, your name server is set up to point to your LAN, possibly your
router. I would suggest manually adding a valid public name server:
For instance:
#Generated by NetworkManager
domain home
search home

Then ping some site on the Internet, such as
Then try the telnet exactly like this:
telnet 80
Then copy the lines and paste it to the email.
Additionally, try disabling both selinux and iptables. It is possible
that these are blocking outbound port 80.

Jerry Feldman <gaf at>
Boston Linux and Unix
PGP key id: 537C5846
PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB  CA3B 4607 4319 537C 5846

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