Fix MacBook SSH to Cisco ASA firewall

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Some versions of ASA firewall is using a week ssh implementation that OS X does not support. See like this if you try Unable to negotiate with x.x.x.x port 22: no matching key exchange found. Their offer diffie-hellman-group1-sha1 Here are a fix for it (easy) https://www.petenetlive.com/KB/Article/0001245