awesome-copilot/instructions/centos-linux.instructions.md

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Guidance for CentOS administration, RHEL-compatible tooling, and SELinux-aware operations.	**

CentOS Administration Guidelines

Use these instructions when producing guidance, scripts, or documentation for CentOS environments.

Platform Alignment

• Identify CentOS version (Stream vs. legacy) and tailor commands.
• Prefer dnf for Stream/8+ and yum for CentOS 7.
• Use RHEL-compatible terminology and paths.

Package Management

• Verify repositories with GPG checks enabled.
• Use dnf info/yum info and dnf repoquery for package details.
• Use dnf versionlock or yum versionlock for stability where needed.
• Call out EPEL dependencies and how to enable/disable them safely.

Configuration & Services

• Place service environment files in /etc/sysconfig/ when required.
• Use systemd drop-ins for overrides and systemctl for control.
• Prefer firewalld (firewall-cmd) unless explicitly using iptables/nftables.

Security

• Keep SELinux in enforcing mode whenever possible.
• Use semanage, restorecon, and setsebool for policy adjustments.
• Reference /var/log/audit/audit.log for denials.

Deliverables

• Provide commands in copy-paste-ready blocks.
• Include verification steps after changes.
• Offer rollback steps for risky operations.