[ANNOUNCE] conntrack-tools 0.9.15 released

[Pablo Neira Ayuso]

Hi!

The Netfilter project presents another development release of the
conntrack-tools. This release includes:

* IPv6-icmp fix for state synchronization.
* Support for TCP window tracking (it requires a Linux >= 2.6.35).
* Improvements and fixes for the NAT filtering support for the command
line tool `conntrack'.
* Patrick McHardy's conntrack zone support (See iptables' CT target).

Among many others outstanding bugfixes. Specifically I'd like to thank
Mohit Mehta from Vyatta for their prolific bug reporting and QA testing.

Please, see changelog attached for more details.

Q: How stable are the conntrack-tools?
A: The daemon that allows to synchronize states between firewalls has
been tested in a cluster environment composed of two stateful firewalls
running Debian 5.0 (Lenny) with a Linux kernel 2.6.32, keepalived
1.1.15, using conntrackd in FT-FW mode. The test consisted of
downloading the Linux kernel source code in a tarball file via HTTP and
randomly (in periods of 10 seconds) unplugging cablelinks to force the
fail-over between the nodes. The results has shown no hangs/closure in
any TCP connection.

Q: What are the conntrack-tools?
A: The conntrack-tools are:

- The userspace daemon so-called conntrackd that covers the specific
aspects of stateful Linux firewalls to enable high availability
solutions. It can be used as statistics collector of the firewall use as
well. The daemon is highly configurable and easily extensible.

- The command line interface (CLI) conntrack that provides an interface
to add, delete and update flow entries, list current active flows in
plain text/XML, current IPv4 NAT'ed flows, reset counters, and flush the
complete connection tracking table among many other.

Q: Where can I download it from?
A: http://www.netfilter.org/projects/conntrack-tools/downloads.html

Q: Where can I get more information about them?
A: http://conntrack-tools.netfilter.org

Q: Where can I have a look at the user manual?
A: http://conntrack-tools.netfilter.org/manual.html

On behalf of the Netfilter Core Team,
Pablo.

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