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Old 06-15-2005, 08:42 PM   #1
kevinm2
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DNS and bind


Any one knows of a simple to follow guide to setup a DNS and BIND behind a firewall on a Redhat 7.2?
 
Old 06-15-2005, 10:18 PM   #2
macemoneta
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If you Google for DNS and BIND, you will find many howto documents. The only difference when running a firewall is that you have to open port 53 on the firewall.

If you're using IPTABLES, for example:

Code:
#
# DNS - allow local queries on subnet 123.45.67.0
#
-A INPUT -p tcp -m tcp --dport 53                        --syn -j ACCEPT
-A INPUT -p udp -m udp --dport 53                              -j ACCEPT
-A INPUT -p udp -m udp -s 123.45.67.0/24 --sport 53 -d 0/0       -j ACCEPT
-A INPUT -p tcp -m tcp -s 123.45.67.0/24 --sport 53 -d 0/0 --syn -j ACCEPT
 
  


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