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40 lines
1.3 KiB
Markdown
40 lines
1.3 KiB
Markdown
---
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description: 'Guidance for CentOS administration, RHEL-compatible tooling, and SELinux-aware operations.'
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applyTo: '**'
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---
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# CentOS Administration Guidelines
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Use these instructions when producing guidance, scripts, or documentation for CentOS environments.
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## Platform Alignment
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- Identify CentOS version (Stream vs. legacy) and tailor commands.
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- Prefer `dnf` for Stream/8+ and `yum` for CentOS 7.
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- Use RHEL-compatible terminology and paths.
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## Package Management
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- Verify repositories with GPG checks enabled.
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- Use `dnf info`/`yum info` and `dnf repoquery` for package details.
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- Use `dnf versionlock` or `yum versionlock` for stability where needed.
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- Call out EPEL dependencies and how to enable/disable them safely.
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## Configuration & Services
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- Place service environment files in `/etc/sysconfig/` when required.
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- Use systemd drop-ins for overrides and `systemctl` for control.
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- Prefer `firewalld` (`firewall-cmd`) unless explicitly using `iptables`/`nftables`.
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## Security
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- Keep SELinux in enforcing mode whenever possible.
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- Use `semanage`, `restorecon`, and `setsebool` for policy adjustments.
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- Reference `/var/log/audit/audit.log` for denials.
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## Deliverables
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- Provide commands in copy-paste-ready blocks.
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- Include verification steps after changes.
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- Offer rollback steps for risky operations.
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