Would this be a good DNS ruleset? Assuming I put my DNS servers in the 
DNS_Servers address list. Well, and assuming I enable them... 

add action=accept chain=forward disabled=no dst-address-list=DNS_Servers 
dst-port=53 protocol=tcp 
add action=reject chain=forward disabled=yes dst-port=53 protocol=udp 
reject-with=icmp-network-unreachable src-address-list=!DNS_Servers 
add action=reject chain=input disabled=yes dst-port=53 protocol=udp 
reject-with=icmp-network-unreachable src-address-list=!DNS_Servers 
add action=tarpit chain=forward disabled=yes dst-port=53 protocol=tcp 
src-address-list=!DNS_Servers 
add action=tarpit chain=input disabled=yes dst-port=53 protocol=tcp 
src-address-list=!DNS_Servers 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 




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