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Everything about nothing
Personal blog · sgros.blogspot.comsystemsprogramming
Everything about nothing is a personal blog at sgros.blogspot.com about systems and programming. Since 2017, 5 different Hacker News readers have linked it 5 times, most often “TCP Client Self-Connect (2013)”. The last post was in 2021, but the archive is still widely read.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
HN readers link this blog for posts on networking internals: setting up a full network VPN over SSH with tap tunnels, and TCP sockets connecting to themselves when bound to an ephemeral port.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Random notes of what's on my mind. Additional materials you'll find on my homepage.
Most-linked posts?
- TCP Client Self-Connect (2013)2 people · 2 mentions · first linked 2017-05-18
What Hacker News says?
> Re Full network: How? These articles explain the concept, but it takes nothing but SSH & Linux (albeit it can work on macOS too with additional software): https://wiki.archlinux.org/index.php/VPN_over_SSH https://debian-administration.org/article/539/Setting_up_a_L... http://sgros.blogspot.com/2011/11/ssh-tap-tunnels-using-rout... I've seen it done before where it was fully transparent to both networks. This requi…
Comment linking /2011/11/ssh-tap-tunnels-using-routing-instead.html
on “Do you need a VPN?”Submitted TCP Client Self-Connect (2013) as a story · 68 points
HN discussionHere's a fun one: TCP sockets can connect to themselves if you bind to an ephemeral port: https://sgros.blogspot.com/2013/08/tcp-client-self-connect.h...
Comment linking /2013/08/tcp-client-self-connect.html
on “What they don't teach you about sockets”Submitted TCP client self-connect as a story · 4 points
HN discussionSubmitted Calculating TCP RTO as a story · 1 points
HN discussion