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Open sourcing h3i: a command line tool and library for low-level HTTP/3 testing and debugging

CloudFaire

Internet protocol specifications are instructions designed for engineers to build things. Protocol designers take great care to ensure the documents they produce are clear. HTTP/3 is an application protocol that maps HTTP semantics to QUIC, such as defining how HTTP requests and responses are assigned to individual QUIC streams.

Protocol 115
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Multi-Path TCP: revolutionizing connectivity, one path at a time

CloudFaire

Enter Multi-Path TCP (MPTCP), which exploits the presence of multiple interfaces on a device, such as a mobile phone that has both Wi-Fi and cellular antennas, to achieve multi-path connectivity. It's a major extension to the TCP protocol, and historically most of the TCP changes failed to gain traction. There are caveats though.

TCP 144
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How Precision Time Protocol is being deployed at Meta

Engineering at Meta

Implementing Precision Time Protocol (PTP) at Meta allows us to synchronize the systems that drive our products and services down to nanosecond precision. The journey to PTP has been years long, as we’ve had to rethink how both the timekeeping hardware and software operate within our servers and data centers.

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Cato CTRL Threat Brief: CVE-2024-3661 – VPN Vulnerability (“TunnelVision”)

CATO Networks

The attack requires introducing a rogue DHCP server to the local network. This is not easy on well-maintained networks, that use trust zones and DHCP snooping features to prevent this attack vector. In the case presented in the article, the malicious DHCP server poisons the routing table of its neighbor on the local network.

VPN 52
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IoT has an identity problem. Here’s how to solve it

CATO Networks

In most cases, these patterns are evaluated on a single network packet, rather than a sequence of flows between a client host and a server. There exist several protocols, from different network layers that can be used for OS fingerprinting. In this post we will cover those that are most commonly used today.

IoT 52
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PTP: Timing accuracy and precision for the future of computing

Engineering at Meta

Meta is deploying a timing protocol, Precision Time Protocol (PTP) , that will offer new levels of accuracy and precision to our networks and data centers. We believe PTP will become the global standard for keeping time in computer networks. The quality of the network router switches and network interfaces.

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Network Troubleshooting in Depth: A Complete Guide

Kentik

On a network, configurations are constantly changing. Unfortunately, configuration change accidents can happen that bring down parts of the network. Interface dropping packets. Interface issues caused by misconfigurations, errors, or queue limits lead to network traffic failing to reach its destination.

Network 114