SRX High CPU: httpd

Matt/ September 5, 2017

Over the past few years of my Juniper SRX adventures, I’ve run into a few cases where the Routing Engine (RE) CPU is pegged at 100%. From what I’ve seen so far, this is typically one of three causes: high traffic (spike in IPS inspection), logging using event mode, or a stuck web management session. In a few occasional cases,

Read More

Ten years of Cisco Certification

Matt/ August 29, 2017

It’s August of 2017 – which means it’s been a long ten years since I originally obtained by CCNA certification in 2007. I figured it might be a good time to take a minute and look at what that has meant for me, and how the last ten years of my career have gone. When I got my CCNA certification,

Read More

Odd Behavior of Protected Switchports

Matt/ August 22, 2017

I ran into an interesting issue recently, which was caused by use of the switchport protected command…. So I use a pair of Cisco 2960-8TC-L switches at home, for both my home network and lab. A few months back I ran a bunch of ethernet cabling within my house, which all terminated in a patch panel in the basement. I was able

Read More

SRX Basics: Redunancy Groups and Failover

Matt/ July 18, 2017

In last weeks post, we took a look at how to set up a chassis cluster on a Juniper SRX Firewall. So now that we have a basic cluster setup – Let’s explore some of the additional options and configuration items. Redundant Ethernet Interfaces So first thing is first – Once you have a cluster configured, you’ll probably want to

Read More

SRX Basics: Clustering

Matt/ July 11, 2017

So you just unboxed a brand new pair of Juniper SRX firewalls – now what? Well, the first thing you’re likely going to want to do is get the two devices hooked up and clustered together. That should be pretty simple, right? Yeah, mostly – though there are a few variations between device models, and there are a few fine-print

Read More

How to Write a Better IT Resume

Matt/ June 21, 2017

I’ve really been meaning to write this out for a while – but since I’ve been doing a lot of interviewing recently, I figured it’s about time. I’ll be completely honest here, the first few iterations of my resume absolutely sucked. I had a family member help me put one together, and I slowly modified it from there – but

Read More