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Introduction to SELinux

SELinux is the most popular Linux Security Module used to isolate and protect system components from one another. Learn about different access control systems and Linux security as I introduce the foundations of a popular type system.

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TOTP codes for 2FA are now single-use

During two-factor authentication and when entering sudo mode for sensitive actions on GitHub.com, TOTP codes could be successfully used multiple times within their validity window. To improve security, this reuse…

An illustration of two octocats repairing a robot.

Code search now requires login

Searching code globally across GitHub.com already requires users to login, but starting today, we are extending that to include repository-scoped search as well. To access the full capabilities of GitHub’s…

Addressing GitHub’s recent availability issues

GitHub recently experienced several availability incidents, both long running and shorter duration. We have since mitigated these incidents and all systems are now operating normally. Read on for more details about what caused these incidents and what we’re doing to mitigate in the future.

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Docs

Docs

Everything you need to master GitHub, all in one place.

GitHub

GitHub

Build what’s next on GitHub, the place for anyone from anywhere to build anything.

Customer stories

Customer stories

Meet the companies and engineering teams that build with GitHub.

The GitHub Podcast

The GitHub Podcast

Catch up on the GitHub podcast, a show dedicated to the topics, trends, stories and culture in and around the open source developer community on GitHub.