if we can determine the gating relationship(AND/OR/NOR/XOR/NOT) between these
entities we might want to create a Karnaugh Map
http://en.wikipedia.org/wiki/Karnaugh_map#Karnaugh_map
Martin Gainty
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> Date: Sat, 8 May 2010 16:02:52 +0200
> From: a...@ice-sa.com
> To: users@tomcat.apache.org
> Subject: Re: Re : Re : Re : Tomcat 5.5.29 does not accept connections from
> outside
>
> Caldarale, Charles R wrote:
> ...
> >
> > So with these versions, the Java blocking connector is listening on both
> > IPv4 and IPv6, while the NIO and APR connectors are using only IPv4. This
> > doesn't seem to make things much clearer...
>
> I am starting to regret my follow-up questions.
> Life seemed so simple before.
>
> Attempting to get a grip, I gather that in order to determine which type
> of listening socket Tomcat will open for its different types of
> Connector's, there seems to be
>
> - a platform/OS element
> - a JVM version element
> - an element linked to the JVM startup options (-D xxx)
> - an element linked to whether Tomcat is using APR or not
> - an element linked to the Tomcat version (?)
> - an element linked to whether a specific bind IP address is specified
> in the Connector (with a particularity for the shutdown connector)
> - an element linked to name-to-IP-address resolution (e.g. whether
> localhost, in the hosts file, is specified as an IPv4-only, or
> IPv6-only, or both).
>
> And separately, the way a client will try to connect, depends on the
> client circumstances.
>
> Does anyone have kind of a "synthetic" view of this at the moment, or
> should I go back through the whole thread to collect the info ?
>
> As a start, I guess that if the platform/OS does not support IPv6, then
> it's simple no matter what else the settings are : IPv4 only.
> The same would be true for the JVM, but is there some version before
> which the JVM does not support IPv6 ?
> (And I seem to remember also some comment about whether it was possible
> or not to enable/disable the JVM's IPv4 or IPv6 support).
>
> Also, does anyone care, or is this something where we'll just try to
> track the issue each time someone asks ?
>
>
>
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