We build the RISC-V software tools from their Git repositories and create & verify assembly instructions against the open source ISA specification for an RV32IM core.
The Serial Gigabit Media Independent Interface (SGMII) is a popular Gigabit Ethernet PHY interface, and it holds various advantages over both GMII and RGMII. This article reviews some of the core SGMII concepts with the help of a scope and lab bench examples.
A review of Ethernet Management Bus basics, architecture, and design with the aid of oscilloscope screen shots for FPGA-based open source networking project
Example Python code is provided to perform basic remote operations with a Rohde and Schwarz RTO1044 Oscilloscope including waveform capture, display, and FFT.
Iptables enables the blocking & logging of network traffic entering, exiting, or being forwarded across a Linux CPU. This article discusses its configuration and application to protecting surveillance cameras.
Article discusses a Python3 redirector for Squid for the purpose of filtering content. Example provides a starting point for developing a full content filter / ad blocker
Article discusses using Python with sockets to create and deploy a honey pot for the purpose of detecting malicious activity on a network. A sample Python 3 script is provided.
Use Java to determine whether another host is present and responsive on a network. Two approaches are provided: low level and layer 4, connection oriented. The lower level approach will result in a ping if used with the right permissions.
Federal Government Cybersecurity resources for Vulnerability Databases, Internet Crimes, Cyber Attacks by Foreign Governments, Legal Wire Tapping, and more.
Two simple C/C++ programs are provided that generate and display an 8-bit RAW pixel test pattern. The display program makes use of the OpenCV 4 library.