12 lines
392 B
Groff
12 lines
392 B
Groff
# $NetBSD: example.8,v 1.1.1.1 2012/03/23 21:20:15 christos Exp $
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#
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# block all incoming TCP connections but send back a TCP-RST for ones to
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# the ident port
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#
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block in proto tcp from any to any flags S/SA
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block return-rst in quick proto tcp from any to any port = 113 flags S/SA
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#
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# block all inbound UDP packets and send back an ICMP error.
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#
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block return-icmp in proto udp from any to any
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