<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Cidr on wid's blog</title><link>https://wid-blog.github.io/en/tags/cidr/</link><description>Recent content in Cidr on wid's blog</description><generator>Hugo</generator><language>en</language><lastBuildDate>Mon, 15 Sep 2025 00:00:00 +0000</lastBuildDate><atom:link href="https://wid-blog.github.io/en/tags/cidr/index.xml" rel="self" type="application/rss+xml"/><item><title>VPC and the Isolation Model</title><link>https://wid-blog.github.io/en/posts/tech/infra/vpc-isolation-fundamentals/</link><pubDate>Mon, 15 Sep 2025 00:00:00 +0000</pubDate><guid>https://wid-blog.github.io/en/posts/tech/infra/vpc-isolation-fundamentals/</guid><description>How VPC simulates a private network boundary by combining IP CIDR, Subnet, and Tenancy. Includes vendor naming map across AWS / GCP / Azure / Alibaba.</description></item></channel></rss>