---
title: "Discussion on \"Demystifying Certificate Updates: A Visual Guide for Debian, Ubuntu, Fedora, and RHEL Systems\" | Hashnode"
description: "Discussion on \"Demystifying Certificate Updates: A Visual Guide for Debian, Ubuntu, Fedora, and RHEL Systems\". Ever wondered how update-ca-certificates on Debian/Ubuntu, and update-ca-trust on Fedora/RHEL-based Linux systems works?\nIf you take the time to read through the respective man pages, you will find that they already do a quite decent job at explainin..."
url: "https://hashnode.com/posts/linux-certificate-updates/68f2620296f6560c85cc76f3"
---

[Feed](https://hashnode.com/feed) /

Discussion

# [Demystifying Certificate Updates: A Visual Guide for Debian, Ubuntu, Fedora, and RHEL Systems](https://blog.stefanrickli.dev/linux-certificate-updates?utm_source=hashnode&utm_medium=feed)

Ever wondered how update-ca-certificates on Debian/Ubuntu, and update-ca-trust on Fedora/RHEL-based Linux systems works? If you take the time to read through the respective man pages, you will find that they already do a quite decent job at explainin...

Oct 17, 2025 · 1 min read · blog.stefanrickli.dev  
Read the article

-   [#linux](https://hashnode.com/tag/linux)
-   [#ubuntu](https://hashnode.com/tag/ubuntu)
-   [#debian](https://hashnode.com/tag/debian)
-   [#rhel](https://hashnode.com/tag/rhel)
-   [#fedora](https://hashnode.com/tag/fedora)
-   [#certificates](https://hashnode.com/tag/certificates)
-   [#certificate-authority](https://hashnode.com/tag/certificate-authority)

## Written by

[Stefan Rickli](https://hashnode.com/@stefanrickli)

@stefanrickli

  
[View profile](https://hashnode.com/@stefanrickli)

Embedded Electrical Engineer @ ETH Zürich

## Responses

Markdown supported · ⌘↵ to post

No responses yet.