Know Your Environment #netsec

In one of my recent posts (5 Things Every Network Needs) I mentioned application/endpoint visibility.  Let’s look into this idea a bit further. When you are looking to implement security mechanisms in your network, you need to know what you’re securing.  Not just “what” you’re securing, but how it works, what it’s for, and where … Continue Reading

East to West Data Center Security? #netsec

I always recommend layered security. And East-to-West Data Center Security is no different!  However, security for the sake of security isn’t ever a good thing. So let’s take a look at East-to-West DC security. I’d also wholeheartily agree with intrusion prevention (IPS) and possibly application layer security on east-to-west data center traffic.  Hackers are breaching East-to-West … Continue Reading

5 Things Every Network Needs

Run a service provider network, enterprise, commercial, health, financial, or retail network?  Run any sort of network? Well then, here are 5 things your network NEEDS today! Redundancy Security Capacity Management Logging (SIEM) Application/Customer/Endpoint Visibility  Redundancy Have you ever owned a computer that didn’t blue screen or give you the spinning beach ball of death? … Continue Reading

Fitbit Flex Won’t Charge?

I’ve had one version of the Fitbit or another since 2012.  I’ve lost or broken probably 4 or 5 of them.  All of them were my fault.  Except the latest…. For some reason the Fitbit Flex’s design makes the charging contacts get smudged and dirty VERY easily and prevent charging.  This has happened 5 times in … Continue Reading

DDoS Protection with NetFlow

DDoS Protection: The Problem with NetFlow

“Netflow collection.” This is what I kept hearing from DDoS providers when I asked how they monitored networks.  But there are a couple problems with utilizing NetFlow. Problem 1: Sampling Rates… I’ve very rarely seen a sampling rate of 1 on routers.  Cisco’s CRS shelves and ASR9ks as well as Juniper’s TX Matrix Plus and MX960s are certainly capable … Continue Reading

Down for a couple days…

I upgraded this server from OS X Mountain Lion Server to OS X Mavericks Server two nights ago….. The server is remotely managed by Macstadium and they HOOKED me up when it didn’t return from the upgrade.  They rebuilt the upgrade from USB and  put it back where it needed to be!  Kudos to Phil @ … Continue Reading

Network Diagrams…. You NEED them!

There is so much truth in the saying “a picture is worth a thousand words”. Pictures matter, especially in the technical field! I majored in Computer Science in college.  These days, “Computer Science” should be called “Computer Programming”.  They taught the OSI model from layer 1 to layer 7, but the majority of the time was spent on application … Continue Reading

How to Add a Route in Mac OS X Mavericks

Ever have need to access a network that your default gateway (router) doesn’t know about?  Just add the route via the CLI/Terminal on a Mac OS X running Mavericks! The command is sudo route -n add (network) (gateway)

What is a Network? #NYTechDay

I spent a few hours at a trade/tech show yesterday in NYC.  My company sponsored a portion of the show and wanted to show off their shiny new network architect in their booth, so I sat down and prepared myself for the deluge of questions. I’m not sure what I was expecting.  Maybe a little … Continue Reading