Linux
What is Secrets management?
Handling API keys, passwords, and tokens so they're stored encrypted, never committed to code, and rotatable when leaked.
How it works
The most common leak is a secret hardcoded in a repo or a .env file that gets shared. Keep secrets out of source, store them in a protected file or a secrets manager, and rotate anything that might have been exposed.
Example
In practiceYou keep API keys in a 600-permission file outside the repo and load them as environment variables, never in the code itself.
Where should secrets live?
In environment variables or a dedicated secrets store, never in source control. Restrict file permissions and rotate on any suspected exposure.
Go deeper: Build a Hardened Linux Workstation
The complete, step-by-step guide — every command, config, and the reasoning behind it.
Get the guide