Let’s set up a scenario. You have a single router that terminates your T1 to the Internet for your company. You serve your own website and email, but you’d like to be as secure as possible and use ACLs on the router to lock stuff down. Your router has two interfaces — S0/0 for...

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Have you even looked at the first few lines of your Cisco switch or router config and wondered what those “service” lines were? Yeah, me, too, so I did a little research through the web and through some audit tools to figure a few out. Here’s some to pay attention to the next time...

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