OpenSSH Critical Flaw Found
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http://thehackernews.com/2016/01/openssh-vulnerability-cryptokeys.html
The serious bug was actually the result of a code that enables an experimental "roaming" feature in the OpenSSH versions 5.4 to 7.1 in order to let users resume connections.
On OS X, Linux and BSD variants, disabling roaming feature can be done by adding a line of code to your SSH configuration.
On FreeBSD run the given command to add the new line to your configuration:
echo 'UseRoaming no' | sudo tee -a /etc/ssh/ssh_config
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https://forum.pfsense.org/index.php?topic=105315.0
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