Networking problem

JD jd1008 at
Sat May 14 18:08:20 UTC 2011

On 05/14/11 11:49, Dale Dellutri wrote:
> On Sat, May 14, 2011 at 8:36 AM, JD<jd1008 at>  wrote:
>> On my F14, I am running a firewall that accepts specific connection on
>> specific ports from some machines on the LAN.
>> However, for one machine I made a general rule to accept all connections:
>> -A INPUT -s -j ACCEPT
>> After restarting the firewall,
>> I still am unable to ping that machine and it is unable to ping me.
>> That machine is not running a firewall.
>> I can ping the router and another machine I have on the LAN.
>> The machine at can do the same.
>> What else do I need to do to be able to talk to machine
>> and it to my fedora machine?
> 1. You might try looking at the counts to see where the pings are being
> rejected.  On the target machine, as root:
>    # iptables -nvL
> Note the counts, then use the source machine to try to ping the target
> and again:
>    # iptables -nvL
> Which counts have changed?  The lines with the changed counts are
> the ones activated by the pings.  (Of course, you need to do this on a quiet
> lan so that the target machine is not being flooded by traffic from other
> systems.)
> 2. iptables problems can be difficult to debug without seeing all the rules,
> since the order of the rules is so important.  I know you are worried about
> security, but you'll need to show them to someone you trust if you can't
> solve tis yourself.
Thank you Dale.
I can tell you that the counts do not change!!

I will seek the help of a friend.

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