Allow named-xfer's through firewalls

Derek Balling dredd at megacity.org
Sat May 5 15:43:02 UTC 2001


At 11:31 AM -0400 5/5/01, James A Griffin wrote:
>What is the 16th rule in the "input" chain?  Protocol 17 is UDP, but
>transfers use TCP.  Are you sure that you have your firewall rules set
>properly?

Rule 16 is the catch-all "if I haven't explicitly allowed it by now, 
reject it".

My DNS-related rules are:

         ipchains -A input -i eth0 -p TCP -s 0.0.0.0/0 -d $LOCALIP 53 -j ACCEPT
         ipchains -A input -i eth0 -p UDP -s 0.0.0.0/0 -d $LOCALIP 53 -j ACCEPT

Which I would think pretty well covers it.

I know its SOMETHING with the firewalls because if I enable the rule:

         ipchains -A input -i eth0 -s 207.7.10.2 -d $LOCALIP -j ACCEPT

it works.

D


-- 
+---------------------+-----------------------------------------+
| dredd at megacity.org  | "Conan! What is best in life?"          |
|  Derek J. Balling   | "To crush your enemies, see them        |
|                     |    driven before you, and to hear the   |
|                     |    lamentation of their women!"         |
+---------------------+-----------------------------------------+


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