Best of Networking — July 2024

  1. 1
    Article
    Avatar of hnHacker News·2y

    Self Hosting 101 - A Beginner's Guide

    Self-hosting allows individuals to run and maintain their own servers for various services, offering complete control over their data, independence from third-party services, and potential cost savings. It's suitable for privacy-conscious individuals, tech enthusiasts, small businesses, and more. Although it requires technical knowledge, time, and upfront costs, it can be a rewarding and educational experience. Key steps include assessing needs, choosing hardware, setting up networking, implementing security measures, using container technologies like Docker, and joining self-hosting communities.

  2. 2
    Article
    Avatar of awegoAwesome Go·2y

    How I sent 500 million HTTP requests to 2.5 million hosts

    An individual leveraged Go's simplicity and concurrency to send 500 million HTTP/1.1 requests to 2.5 million hosts for an ethical hacking use case. By utilizing Kubernetes for horizontal scaling and optimizing both code and libraries, they achieved this massive scale efficiently. Key optimizations included pre-resolving DNS, hand-crafting HTTP requests, and using the fasthttp library.

  3. 3
    Article
    Avatar of tailscaleTailscale·2y

    The New Internet

    Avery Pennarun, CEO of Tailscale, discusses the evolution and challenges of modern computing, focusing on the unnecessary complexity introduced by scalability concerns. He highlights that Tailscale aims to simplify networking by addressing these issues. By giving every device an identity and bypassing traditional networking hurdles, Tailscale proposes a new, decentralized Internet model that reduces dependency on central cloud providers, ultimately making software development more efficient and accessible.

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    Article
    Avatar of communityCommunity Picks·2y

    🕸 Networking is easy, fun, and probably not what you think it is.

    Networking is crucial for career growth and is often misunderstood. It doesn’t just happen at formal events but through natural interactions and relationships built over time. Curiosity, openness, kindness, and generosity are key to effective networking. The author shares personal experiences highlighting how networking led to career opportunities and stresses that it’s accessible even for introverts. Additionally, the post discusses the role of privilege in networking opportunities and encourages self-awareness.

  5. 5
    Article
    Avatar of lobstersLobsters·2y

    Doggo

    Doggo is a command-line DNS client designed for humans, offering human-readable and JSON outputs. It supports multiple transport protocols including DNS over HTTPS, TLS, QUIC, TCP, UDP, and DNSCrypt. Additional features include ndots and search configurations, multiple resolver support, shell completions for zsh and fish, a web interface, and cross-platform capability. The tool also supports reverse DNS lookups, flexible query options, debugging, and response time measurement.

  6. 6
    Article
    Avatar of hnHacker News·2y

    PySkyWiFi: completely free, unbelievably stupid wi-fi on long-haul flights

    PySkyWiFi is a tool that exploits a loophole in airline airmiles accounts to access the internet on flights without paying. By using Python and implementing a simplified TCP/IP protocol, the author created a sky proxy on their laptop and a ground daemon on an internet-connected computer. This setup allows full HTTP requests to be sent via the airmiles account, albeit very slowly. The post includes detailed instructions on how the system works, as well as highlights the potential fun and productivity achieved during a long-haul flight.

  7. 7
    Article
    Avatar of communityCommunity Picks·2y

    HTTP Refresher: Things You Should Know About HTTP

    HTTP (Hyper Text Transfer Protocol) is a crucial application layer protocol for data transfer across the web. The OSI model provides a conceptual framework for understanding how HTTP operates within networking layers. HTTP follows a stateless client-server model, with distinct request and response structures. Security issues in HTTP are addressed by HTTPS, which uses TLS encryption. HTTP has evolved from its original version to HTTP/1.1, which introduced persistent connections and chunked transfer encoding, and HTTP/2.0, which offers binary framing and multiplexing for improved performance. The upcoming HTTP/3.0 will rely on QUIC over UDP instead of TCP for even better performance and security.

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    Article
    Avatar of equinixEquinix·2y

    Comparing Load Balancing Algorithms

    Load balancers are essential for efficiently routing traffic in various applications, whether on-premises or in the cloud. The post compares six widely used load balancing algorithms, both static and dynamic, and evaluates them based on factors like distribution methodology, performance, scalability, complexity, and fault tolerance. Static algorithms like round robin and weighted round robin are simpler but less flexible, while dynamic algorithms like least connections and least response time adapt to changing server conditions. The IP hash algorithm is noted for session persistence, and the resource-based algorithm maximizes resource utilization. Equinix's Load Balancer-as-a-Service is highlighted as an optimal solution for global traffic management.

  9. 9
    Article
    Avatar of systemweaknessSystem Weakness·2y

    SSH server Secure configuration in Linux

    Learn how to install and securely configure an SSH server on Linux. The guide covers essential security mechanisms such as changing the default port, binding SSH to specific IPs, disabling root login, setting up public key authentication, and using both passwords and keys for authentication. It also includes instructions on denying or allowing access based on IP and username to enhance SSH security.

  10. 10
    Article
    Avatar of thedailywtfThe Daily WTF·2y

    How to Validate an IP Address

    Andy has shared C# code meant to validate IP addresses, but it only checks for IPv4 format and misses broader considerations like IPv6. The code parses an address and checks if the length is less than 4, which could incorrectly validate erroneous IP addresses like '555.192.168.0.1'. It's better to use built-in C# functions to correctly handle IP address validation.

  11. 11
    Article
    Avatar of hnHacker News·2y

    Making a Linux-managed network switch

    This post discusses the creation of a Linux-managed network switch by leveraging the DSA and switchdev subsystems. It details the process of designing and integrating a Realtek RTL8367S switch chip with a custom-built board, including power configurations and communication interfaces. The post also covers configuring the switch in Linux, required kernel options, and device tree modifications to enable functionality. Challenges and limitations are also addressed.

  12. 12
    Article
    Avatar of awsfundamentalsAWS Fundamentals·2y

    AWS VPC Guide Part 3: Expert Topics

    This guide covers advanced AWS VPC topics, including using multiple VPCs for segregating workloads, VPC Peering for connecting VPCs within or across regions, and AWS Transit Gateway for managing complex networking scenarios. It also explains AWS Client VPN for secure access, Site-to-Site VPN for connecting on-premises networks, and AWS Direct Connect for dedicated connections ensuring reliable bandwidth and availability.

  13. 13
    Article
    Avatar of hnHacker News·2y

    pythops/impala: 🛜 TUI for managing wifi on Linux.

    Impala is a TUI application for managing Wi-Fi on Linux systems. It can be installed via pre-built binaries, crates.io, AUR, or Nix. The default keybindings include navigation commands like 'j' for down, 'k' for up, and functional keys like 'i' for device info, 'o' to toggle device power, and 's' to start scanning. Keybindings are configurable through a config file located at $HOME/.config/impala/config.toml.

  14. 14
    Article
    Avatar of planetpythonPlanet Python·2y

    Automating telecommunications networks with Python and SFTP

    In telecommunications, SFTP is key for secure file exchanges, while Python is ideal for automating these processes due to its readability and versatility. With the Zato integration platform, users can define SFTP connections via a dashboard, validate these connections, and prototype file transfer functionality. Once set up, Python scripts can utilize these connections to perform efficient and scalable network automation.

  15. 15
    Article
    Avatar of freecodecampfreeCodeCamp·2y

    Learn System Design Principles and Prepare for an Job Interview

    Mastering system design is critical for building scalable and reliable applications. Hayk Simonyan's comprehensive tutorial on freeCodeCamp.org covers crucial topics such as computer architecture, production app architecture, design requirements, networking, application layer protocols, API design, caching, proxy servers, load balancers, and databases. This course offers clear explanations, real-world examples, and practical strategies to help you understand and implement robust system designs.

  16. 16
    Article
    Avatar of hnHacker News·2y

    virtualsquare/vde-2

    Virtual Distributed Ethernet (VDE) enables the creation of a virtual network environment where devices connect as if they were on a real Ethernet. Components include virtual switches and cables, with features like VLAN support, fast spanning tree, and mobility solutions. VDE can interconnect different network devices, including Linux boxes and virtual machines, through tap interfaces and secure tunnels. Detailed instructions are provided for setting up the environment and managing network configurations.

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    Article
    Avatar of dartdevsDart Developers·2y

    Package of the Day! (connectivity_plus)

    The connectivity_plus package is a versatile tool for determining network connectivity types across macOS, Windows, Linux, and mobile platforms. For internet connectivity checks, consider using internet_connection_checker_plus or internet_connection_checker.

  18. 18
    Article
    Avatar of planetpythonPlanet Python·2y

    How to Maximize Your Experience at EuroPython 2024 🐍✨

    EuroPython 2024 will be held in Prague from July 8th to 14th, featuring tutorials, workshops, keynotes, talks, and social events. Attendees are encouraged to plan their schedule, engage in workshops, network actively, visit the Sponsors Hall, attend social events, take care of themselves, and explore Prague. The event provides an excellent opportunity for learning and networking within the Python community.

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