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Immutable Infrastructure on Linux: Why I Don’t Modify Servers After Deployment
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The days of SSHing into a server to make manual tweaks are over — at least for me.
In the world of high-stakes security, compliance, and fast recovery, I now treat Linux servers as disposable infrastructure. If it’s broken or outdated, I don’t fix it — I replace it.
Let me show you why I adopted an immutable infrastructure mindset — and how it’s improved my Linux server security and uptime.
🧱 What Is Immutable Infrastructure?
Simply put: you don’t change running servers.
- No manual config changes
- No patching via SSH
- No surprise “hotfixes” at 2 AM
Instead, you:
- Build new golden images
- Deploy them clean
- Destroy the old ones
Everything is versioned, repeatable, and logged.
🔐 Why It’s More Secure
✅ 1. No Drift
If your servers are constantly being patched manually, you end up with snowflake servers — no two alike. That’s a nightmare to debug or secure.