Why not tcping it ?

 

Pouriya Jamshidi’s GitHub profile https://github.com/pouriyajamshidi showcases a variety of open-source projects, primarily focused on networking, security, and system diagnostics. As a hobbyist programmer based in Belgium, Jamshidi has developed 27 repositories, with several standout tools that cater to developers, network administrators, and security enthusiasts. His work emphasizes practical utilities written in languages like Go, Rust, Nim, and Python, reflecting a strong interest in creating efficient, cross-platform solutions for real-world problems. The projects range from network monitoring tools to security-focused applications, demonstrating both technical skill and a commitment to community-driven development.

Public DNS Reference Sheet

 Right click and save this cool public dns reference sheet from - study-notes.org

Why Is My 1 Gbps Internet Speed Only Showing 100 Mbps?

 Upgrading from a 100 Mbps internet connection to a 1 Gbps (Gigabit) service should deliver significantly faster network performance. However, many IT professionals and home users discover that after upgrading their internet package, switches, routers, access points, or computers, their speed tests still show results close to 100 Mbps. This is a common networking issue that can be difficult to identify without proper troubleshooting and performance testing.

Sentimental Sundays

 

Acoustic Modem

The acoustic modem, an ingenious relic of early computing, represents a fascinating chapter in the history of data communication. Developed in the mid-20th century, it was designed to transmit digital information over telephone lines by converting electrical signals into sound waves. The device typically featured a pair of rubber cups that cradled a standard telephone handset—one cup for the speaker to send data and another for the microphone to receive it. By modulating binary data into audible tones, often using frequency-shift keying (FSK), the acoustic modem allowed computers to "talk" to each other through the existing telephone infrastructure, a groundbreaking concept at a time when dedicated data networks were virtually nonexistent.

Linux IPTABLES cheetsheet