Home » Author Archives: Mark Wolfe

Author Archives: Mark Wolfe

What is HMAC Authentication and why is it useful?

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To start with a little background, then I will outline the options for authentication of HTTP based server APIs with a focus on HMAC and lastly I will provide some tips for developers building and using HMAC based authentication. Recently I have been doing quite a bit of research and hacking in and around server APIs. Authentication for these type ...

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Monitoring OpenJDK from the CLI

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Currently I do quite a bit of work in and around the Java virtual machine (JVM), most of the time on Linux. When things go awry and I am trying to establish why, I reach for the Java performance analysis tools. These tools come in two forms, the wonderful GUI known as visualvm, which I use when I am working ...

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