LINUX 9 IPTABLES and DNS Post: 65058

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Top Forums UNIX for Advanced & Expert Users LINUX 9 IPTABLES and DNS Post 65058 by frankkahle on Thursday 3rd of March 2005 08:23:28 AM

03-03-2005

Registered User

LINUX 9 IPTABLES and DNS

I have installed a linux 9 router/firewall and have issues with outside DNS queries making it in. here are my IPTABLE rules, can anyone make some suggestions?

ETH1 is my outside facing Interface, ETH0 is my inside facing interface.

Accept If input interface is not eth1
Accept If protocol is TCP and TCP flags ACK (of ACK) are set
Accept If protocol is UDP and input interface is eth1 and destination port is 1024:65535 and source port is 53
Accept If state of connection is ESTABLISHED
Accept If state of connection is RELATED
Accept If protocol is TCP and destination is 216.58.39.241 and input interface is eth1 and destination port is 110
Accept If protocol is TCP and destination is 216.58.39.241 and input interface is eth1 and destination port is 25
Accept If protocol is TCP and input interface is eth1 and source and destination ports are 6346
Accept If protocol is ICMP and ICMP type is source-quench
Accept If protocol is ICMP and ICMP type is time-exceeded
Accept If protocol is ICMP and ICMP type is parameter-problem
Accept If protocol is TCP and destination port is ssh
Accept If protocol is TCP and destination port is auth

frankkahle

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LEARN ABOUT CENTOS

net::dns::mailbox

Net::DNS::Mailbox(3)					User Contributed Perl Documentation				      Net::DNS::Mailbox(3)

NAME

       Net::DNS::Mailbox - DNS mailbox representation

SYNOPSIS

	   use Net::DNS::Mailbox;

	   $mailbox = new Net::DNS::Mailbox('user@example.com');
	   $address = $mailbox->address;

DESCRIPTION

       The Net::DNS::Mailbox module implements a subclass of DNS domain name objects representing the DNS coded form of RFC822 mailbox address.

METHODS

   new
	   $mailbox = new Net::DNS::Mailbox('John.Doe@example.com');
	   $mailbox = new Net::DNS::Mailbox('John Doe <j.doe@example.com>');

       Creates a mailbox object which represents the DNS domain encoded form of the mail address specified by the character string argument.

       The argument string consists of printable characters from the 7-bit ASCII repertoire.

   address
	   $address = $mailbox->address;

       Returns a character string containing the RFC822 mailbox address corresponding to the encoded domain name representation described in
       RFC1035 section 8.

DOMAIN NAME COMPRESSION AND CANONICALISATION

       The Net::DNS::Mailbox1035 and Net::DNS::Mailbox2535 subclass packages implement RFC1035 domain name compression and RFC2535
       canonicalisation.

COPYRIGHT

       Copyright (c)2009,2012 Dick Franks.

       All rights reserved.

       This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       perl, Net::DNS, Net::DNS::DomainName, RFC822, RFC1035, RFC5322

perl v5.16.3							    2012-12-28						      Net::DNS::Mailbox(3)