Hack and / - Some Hacks from DEF CON

What happens when a sysadmin goes to a hacker conference? He gets a fresh perspective on computer security.
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Kyle Rankin is SVP of Security and Infrastructure at Zero, the author of many books including Linux Hardening in Hostile Networks, DevOps Troubleshooting and The Official Ubuntu Server Book, and a columnist for Linux Journal. Follow him @kylerankin