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35 lines
1.2 KiB
Plaintext
35 lines
1.2 KiB
Plaintext
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#
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# Shorewall 4 - DNS Amplification Action
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#
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# /usr/share/shorewall/action.DNSAmp
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#
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# This program is under GPL [http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt]
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#
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# (c) 2011,2012 - Tom Eastep (teastep@shorewall.net)
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#
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# Complete documentation is available at http://shorewall.net
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of Version 2 of the GNU General Public License
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# as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# DNSAmp[([<action>])]
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#
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# Default action is DROP
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#
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##########################################################################################
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?format 2
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DEFAULTS DROP
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IPTABLES(@1) - - udp 53 ; -m u32 --u32 "0>>22&0x3C\@8&0x0100=0x0100 && 0>>22&0x3C\@12>>16=1"
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