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New release note: TCP syncache.

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Bruce A. Mah 2001-11-26 20:06:25 +00:00
parent 57813e7f3f
commit ef2b805fcf
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9
release/doc/en_US.ISO8859-1/relnotes/article.sgml
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@ -708,6 +708,15 @@
<varname>net.inet.tcp.strict_rfc1948</varname> and
<varname>net.inet.tcp.isn_reseed_interval</varname> sysctl
variables. &merged;</para>
<para>The TCP implementation in &os; now implements a cache of
outstanding, received SYN segments. Incoming SYN segments now
cause entries to be placed in the cache until the TCP three-way
handshake is complete, at which point, memory is allocated for
the connection as usual. This so-called
<quote>syncache</quote> makes a host much more resistant to
TCP-based Denial of Service attacks. Work on this feature was
sponsored by DARPA and NAI Labs.</para>
</sect3>
<sect3>

9
release/doc/en_US.ISO8859-1/relnotes/common/new.sgml
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@ -708,6 +708,15 @@
<varname>net.inet.tcp.strict_rfc1948</varname> and
<varname>net.inet.tcp.isn_reseed_interval</varname> sysctl
variables. &merged;</para>
<para>The TCP implementation in &os; now implements a cache of
outstanding, received SYN segments. Incoming SYN segments now
cause entries to be placed in the cache until the TCP three-way
handshake is complete, at which point, memory is allocated for
the connection as usual. This so-called
<quote>syncache</quote> makes a host much more resistant to
TCP-based Denial of Service attacks. Work on this feature was
sponsored by DARPA and NAI Labs.</para>
</sect3>
<sect3>