Loading...
Stories
Automate GPG subkey rotation — Part 4
Marco Franssen
Rotate your GPG subkeys and write a fresh offline backup with one command, using a script that keeps your primary fingerprint and old encryption keys.
Rotate your GPG subkeys — Part 3
Marco Franssen
Rotate expiring GPG subkeys without changing your primary fingerprint: add new subkeys, retire old ones, and update Git, GitHub, and SSH.
Keep your primary GPG key offline — Part 2
Marco Franssen
Remove your primary GPG key from your laptop, keep signing Git commits with subkeys, upload keys to GitHub, and use your GPG subkey for SSH.
Create a GPG key with subkeys — Part 1
Marco Franssen
Create a GPG primary key with separate signing, encryption, and authentication subkeys, add multiple email addresses, and back them up safely.
Configure multiple Git commit email addresses by folder
Marco Franssen
Automatically choose work or personal Git commit email addresses with conditional includes in your global Git configuration and a folder-based setup.
Upgrade your SSH security with RSA and Ed25519 keys
Marco Franssen
Compare SSH key algorithms, generate RSA and Ed25519 keys with passphrases, and configure your SSH client while migrating away from older keys.
Remove files from Git history using git-filter-repo
Marco Franssen
Remove unwanted files from Git history with git-filter-repo, find previously deleted files, and push rewritten history using this practical walkthrough.
How to use SSH comfortably from the terminal
Marco Franssen
Set up SSH keys, an SSH agent, host aliases, and Bash autocompletion to connect to servers and use Git from macOS or Git Bash on Windows.
Merge multiple Gradle projects while preserving Git history
Marco Franssen
Combine separate Git repositories into a multi-module Gradle project while preserving commit history, then consolidate build and CI configuration.