Both at work and at home I am heavily using screenshot tools to document findings and highlight meeting content. This short post documents how to assign shortcuts in both windows and Linux for e.g. rapid-fire screenshot taking. Both solutions can also be used for other shortcuts.
More …This short post is about the taming of the pyqtgraph widget HistogramLUTItem and preventing a linked ImageItem to update manually set levels in the histogram.
I recently needed to limit the number of instances of particular classes to 1 - the singleton design pattern seemed an obvious choice, but in Python the implementation of the Singleton proved to be harder to implement correctly when involving pyqtSignals.
More …I recently finished up a challenge from pwn.college where I needed to pass the address of a python bytestring (user space) to a Linux kernel module. For a mysterious reason the contained bytes started at a 32 bit offset - this post explores the reason for this offset in byte strings and to such end also discusses other common data types such as int, lists, strings and arrays.
More …After obtaining my CCNA some months back it was great to put it to use and set-up a small network. The network consisted of two switches, two VLANs and a connecting trunk link.
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