Hacker News with Generative AI: IP Addresses

Fun with IP Address Parsing (dave.tf)
In my quest to write a fast IPv4+6 parser, I wrote a slow-but-I-think-correct parser, to use as a base of comparison. In doing so, I discovered more cursed IP address representations that I was previously unaware of. Let’s explore together!
Programming, Networking, Performance, IP Addresses
18 points by marbu 13 hours ago | 3 comments
Six day and IP address certificate options in 2025 (letsencrypt.org)
This year we will continue to pursue our commitment to improving the security of the Web PKI by introducing the option to get certificates with six-day lifetimes (“short-lived certificates”). We will also add support for IP addresses in addition to domain names. Our longer-lived certificates, which currently have a lifetime of 90 days, will continue to be available alongside our six-day offering.
Security, Web PKI, Certificates, Domain Names, IP Addresses
197 points by SGran 100 days ago | 158 comments
IP addresses through 2024 (potaroo.net)
Time for another annual roundup from the world of IP addresses. Let’s see what has changed in the past 12 months in addressing the Internet and look at how IP address allocation information can inform us of the changing nature of the network itself.
IP Addresses, Internet, Networking
162 points by DanAtC 104 days ago | 84 comments
Ephemeral IDs: a new tool for fraud detection (cloudflare.com)
In the early days of the Internet, a single IP address was a reliable indicator of a single user. However, today’s Internet is more complex. Shared IP addresses are now common, with users connecting via mobile IP address pools, VPNs, or behind CGNAT (Carrier Grade Network Address Translation). This makes relying on IP addresses alone a weak method to combat modern threats like automated attacks and fraudulent activity.
Fraud Detection, Security, Internet Security, IP Addresses
17 points by leiferik 215 days ago | 7 comments
The UK government has blocked IPs (police.uk)
Government, Security, UK, IP Addresses
66 points by hi 260 days ago | 95 comments
IP.network: Check IP Address (ip.network)
IP Addresses, Tools
53 points by Airyisland 263 days ago | 53 comments
Europol nukes nearly 600 IP addresses in Cobalt Strike crackdown (theregister.com)
Cybersecurity, Law Enforcement, Malware, IP Addresses
5 points by mdp2021 296 days ago | 1 comments