How is GitLab permission management on Debian

This article describes how to manage GitLab permissions on Debian systems. GitLab adopts a role-based access control (RBAC) model, allowing granular control of users and groups' access to projects and resources.

Permission management steps:

1. User and Group Creation: Create users and groups through gitlab-cli or GitLab web interface and assign them roles (visitor, reporter, developer, owner).

2. Role and permission assignment: On the project "Settings" > "Members" page, assign the corresponding role to each member to determine their access rights to the project (such as code submission, merge request, etc.).

3. SSH key configuration: It is recommended to configure an SSH key to securely access GitLab. Generate a key pair and add the public key to the GitLab account.

4. Web access configuration: Ensure that the server firewall allows HTTP and HTTPS traffic (usually ports 80 and 443, which can be configured with the ufw command).

5. Advanced permission management (optional): For more complex permission control, you can consider using Gitolite to achieve refined management of repository access.

GitLab permission model:

The GitLab permissions model is based on the role's association with the user. After creating a role and assigning permissions, just assign the role to the user. A user can have multiple roles and permissions are accumulated.

Safety Tips:

Note that there is a permission bypass vulnerability in GitLab EE (CVE-2024-9164). Low-privileged users may use this vulnerability to run pipelines on any branch, execute malicious code, or disclose information. The affected versions are 12.5 to 17.2.9, 17.3.5 to 17.4.2. Please update to the latest version to fix this vulnerability.

For more details, please refer to the official GitLab documentation.

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