Using Bash to Sort IPs by Subnet Uniqueness

This is a helpful Bash script to parse IP addresses by the uniqueness of their subnets. This can be quite helpful in various scenarios.

Binary, IPv4, and Subnets

The IPv4 protocol which we broadly (but not totally) use today rests on an addressing system that was designed in the 1970s and formally published in 1980.

The Etymology of 'Deadline'

The word 'deadline' has a popular etymology story around 19th century prison culture. The explanation of the meaning behind the word 'deadline' often goes something like this — as many etymologists and US dictionaries frequently cite it:

Using Csharp to Enumerate Processes

In previous posts, I covered how to observe process information in Windbg by starting a debugging session and dumping the Proccess Environment Block.

Walking the EPROCESS Structure with Windbg

In a previous blog post, I covered how when a process is loaded, it is assigned a Process Environment Block (PEB) and Thread Environment Block. But this is only part of the story, and part of a larger picture.

Tradeoffs of PInvoke and Marshaling

Today I learned that PInvoke and marshaling have more tradeoffs than I naively considered. In terms of performance engineering, PInvoke and marshaling can be disadvantageous.