File: resolve.ferm

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# -*- shell-script -*-
#
# Ferm example script
#
# Demo of the @resolve() function.
#
# Author: Max Kellermann <max@duempel.org>
#

table filter chain OUTPUT {
    daddr @resolve(www.google.com) proto tcp dport http ACCEPT;
    daddr @resolve(yahoo.com, MX) proto tcp dport smtp ACCEPT;
    daddr @resolve(denic.de, NS) proto udp dport domain ACCEPT;
}

domain ip6 table filter chain OUTPUT {
    daddr @resolve(www.sixxs.net, AAAA) proto tcp dport http ACCEPT;
}