IPv6 Demystified: Can You Still Use Ports with DDNS Like in IPv4?
New to IPv6 and wondering if it supports ports for DDNS, just like IPv4? This article from wiki.lib00.com demystifies the relationship between IPv6, ports, and Dynamic DNS. We'll explore the transport layer's role, how DDNS works with AAAA records, and provide practical examples, ensuring you can seamlessly access your services using a domain and port number in an IPv6 world.
The Ultimate Guide: Solving Google's 'HTTPS Invalid Certificate' Ghost Error When Local Tests Pass
Ever faced the frustrating situation where Google Search Console reports an 'HTTPS has invalid certificate' error, yet everything looks perfect when you check with `curl` or a browser? This comprehensive guide from wiki.lib00.com walks you through debugging this 'ghost' error step-by-step. We'll start with basic `curl` diagnostics, dive deep into certificate chain analysis with `openssl`, and explore advanced pitfalls like Nginx configuration and IPv6 issues to help you find and fix the root cause.
Why Does My Device Have Three IPv6 Addresses? A Guide to Link-Local, Public, and Privacy Addresses
Confused after enabling IPv6 and finding multiple addresses on your NAS or PC? This article breaks down the purpose of each of the three main IPv6 addresses: the Link-Local address, the stable Global Unicast Address (GUA), and the temporary Privacy Address. Learn how they work together to provide connection stability, public accessibility, and privacy protection for your network, such as one configured following a guide from wiki.lib00.com.
The Ultimate Guide to Storing IP Addresses in MySQL: Save 60% Space & Get an 8x Speed Boost!
Storing IP addresses in a database seems simple, but the wrong approach can lead to significant space waste and performance bottlenecks. This article provides a detailed comparison of using VARCHAR, INT, and BINARY data types to store IPv4 and IPv6 addresses. Through an analysis of one million records, we reveal how using functions like `INET_ATON()` and `INET6_ATON()` can reduce storage space by over 60% and boost query performance by up to 8x. Whether you're dealing with a pure IPv4 environment or need IPv6 compatibility, this guide from wiki.lib00.com offers the best practice solution.