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20 lines
674 B
Plaintext
20 lines
674 B
Plaintext
#
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# Shorewall version 4 - NTPbrd Macro
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#
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# /usr/share/shorewall/macro.NTPbrd
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#
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# This macro handles NTP traffic (ntpd) including replies to Broadcast
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# NTP traffic.
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#
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# It is recommended only to use this where the source host is trusted -
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# otherwise it opens up a large hole in your firewall because
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# Netfilter doesn't track connections for broadcast traffic.
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#
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###############################################################################
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?FORMAT 2
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###############################################################################
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#ACTION SOURCE DEST PROTO DEST SOURCE ORIGIN RATE USER/
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# PORT(S) PORT(S) DEST LIMIT GROUP
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PARAM - - udp 123
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PARAM - - udp 1024: 123
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