Best of 2023

The blog posts Hacker News loved most in 2023. 6,299 posts.

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1298

How does Linux NAT a ping?

A few months ago, I found myself wondering how a command like ping 1.1.1.1 works from within a private network. In most private networks, multiple hosts connect to the Internet through a router. For IPv4, the router performs network address translation (NAT) by rewriting the original host’s source address to the…

1308

UK Threatens End-to-End Encryption

In an open letter, seven secure messaging apps—including Signal and WhatsApp—point out that the UK’s Online Safety Bill could destroy end-to-end encryption: As currently drafted, the Bill could break end-to-end encryption,opening the door to routine, general and indiscriminate surveillance of personal messages of…

1311

Career Advice (2013)

To my great surprise, young people now somewhat frequently contact me in order to solicit career advice.They are usually in college or highschool, and want to know what the best next steps are for a career in security or software development.This is, honestly, a really complicated question, mostl...