Document the TCP sysctl variables insecure_rst and insecure_syn.
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@ -34,7 +34,7 @@
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.\" From: @(#)tcp.4 8.1 (Berkeley) 6/5/93
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.\" $FreeBSD$
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.\"
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.Dd June 28, 2016
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.Dd October 21, 2016
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.Dt TCP 4
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.Os
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.Sh NAME
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@ -586,6 +586,12 @@ downshift.
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List of available TCP function blocks (TCP stacks).
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.It Va functions_default
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The default TCP function block (TCP stack).
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.It Va insecure_rst
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Use criterias defined in RFC793 instead of RFC5961 for accepting RST segments.
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Default is false.
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.It Va insecure_syn
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Use criterias defined in RFC793 instead of RFC5961 for accepting SYN segments.
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Default is false.
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.El
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.Sh ERRORS
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A socket operation may fail with one of the following errors returned:
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