Speaking of Malware
The Strongarm Blog

How to Secure an Open DNS Resolver

December 22, 2016 | By Mark Zealey

One of the challenges of running an open DNS resolver is that it can be used in a number of different attacks, compared to a server that is only allowed access from a known set of IPs. One of the most well known is the...

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How to Conduct Linux Firewall Performance Testing

August 8, 2016 | By Mark Zealey

As we mentioned in a previous post, at Strongarm, we love the Linux firewall. While a lot of effort has gone into making the firewall highly flexible and suitable for nearly every use case, there is very little information out there about the actual performance...

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How to Make a Linux Stateless Firewall for Performance and Resilience

July 14, 2016 | By Mark Zealey

When we were building Strongarm, we came across an interesting challenge that we hadn’t seen addressed before: how to make a Linux stateless firewall that guarantees performance and resilience. Below, I’ll explain how we went about exploring and eventually solving this problem and offer some...

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