Tag: Windows

  • Securing the wired network with 802.1X

    This post covers an innovation project I did to secure the wired network at a shared conf center with 802.1X. Every few months we had to disable the wired network in order to prevent non-employees from being able to get online. This was not scalable, was prone to human error, and scheduling confusion. I planned…

  • NTP redesign

    This post is about a bug that affected NTP (Network Time Protocol) and our redesign of the environment bypass the issue.   In this environment the core Cisco 7604 IOS routers were the NTP stratum 2 servers (x.x.x.123 because fun with port numbers). The IP was an HSRP standby IP. There were several downstream Linux…