1. Heartbleed

    Heartbleed.

    And the Lord said, "Thou shalt patch thine servers. Posthaste."

    This is the real deal, folks. The general zeitgeist in my sysadmin circles is that this is the most severe, widespread, high-potential-for-damage bug in a decade. If you're running a vulnerable version ...


  2. Implementing IPsec Transport Mode

    I've been working with IPsec for many years, mostly in tunnel mode, when building LAN-to-LAN VPN connections or for mobile worker VPNs. Recently, though, I had occastion to venture into using IPsec in transport mode, which I'd never done before. In the standard tunnel mode, entire packets are ...


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