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Networking & Internet

The most popular blog posts about networking & internet on Hacker News. 282 posts.

2022
3

What does it mean to listen on a port?

This story explores some concepts in computer networking, inspired by Michael Nielsen’s idea of discovery fiction . Code samples can also be found in this repo . Excerpts use openbsd-flavoured netcat on Debian Linux; behviour and IPv6 support may vary by version.

6

Tailscale SSH

Use this guide to setup Tailscale SSH. Learn how it transforms SSH connectivity by using your Tailscale identity for authentication. Enjoy simplified setup, added security with WireGuard®, and customizable access with ACLs. Ideal for managing secure connections across your tailnet.

9

DNS Esoterica – Why you can't dig Switzerland

As part of my new job, I'm learning a lot more about the mysteries of the Domain Name System than any mortal should know I thought possible. The humble unix dig command allows you to query all sort of DNS information. For example, to see name server records for the BBC website, you can run: dig bbc.co.uk NS Which will…

16

Resolving an unusual WiFi issue

Late last year, I started experiencing some unusual intermittent connection issues on my Desktop. In general, I had a stable connection with average latency; however, at (seemingly) random times throughout the week, I would start experiencing sudden 2000ms+ latency spikes every couple of seconds.

26

Native Matrix VoIP with Element Call

Hopefully in-person meet-ups will prove much easier in 2022 - but, there’s still a need for video calls, so let’s face it, they’re here to stay. This makes it really exciting to present Element Call: the world’s first decentralised voice and video conferencing app powered entirely