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domain	ianmuchina.com
summary	1. The first content focuses on enhancing Debian system security by enabling automatic security updates. It explains the importance of keeping software up-to-date for vulnerability patching and maintaining system integrity. The steps involve configuring apt (Debian package manager) or using a third-party tool like unattended-upgrades to automatically install security patches without manual intervention. 2. The second content discusses how big tech companies utilize certificates for securing their extensive server infrastructure. These organizations rely on digital certificates issued by trusted Certificate Authorities (CAs) to establish secure communication channels and authenticate servers. By using Public Key Infrastructure (PKI), these companies ensure encrypted data transmission, protect against man-in-the-middle attacks, and maintain data integrity across thousands of interconnected servers.
title	Ian's blog
description	Hey, I’m Ian. Welcome to my blog, mostly tech related
keywords	blog, tech, updates, security, docker, certificates, vocals, songs, welcome, posts, notes, performance, hugo, render, hooks, width, height
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downstreams
nslookup	A 172.66.47.55, A 172.66.44.201
created	2025-11-08
updated	2025-11-08
summarized	None