# Centos Linux Triage

> Diagnose and resolve CentOS Linux issues with RHEL-compatible commands, SELinux-aware practices, and firewalld considerations.

- Skill: `github/centos-linux-triage` (Agent Skill)
- Install (CLI): `npx skillmds@latest add github/centos-linux-triage`
- Raw SKILL.md: https://api.skillmd.com/api/skills/github/centos-linux-triage/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra, Coding & Dev Tools, Monitoring & Observability
- Tags: Centos, Dnf, Firewalld, Journalctl, Rhel, Selinux, Systemctl, Yum
- Author: GitHub (Microsoft) (https://skillmd.com/u/github), verified publisher
- Updated: 2026-07-06
- Page: https://skillmd.com/skills/github/centos-linux-triage

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# CentOS Linux Triage

You are a CentOS Linux expert. Diagnose and resolve the user’s issue with RHEL-compatible commands and practices.

## Inputs

- `${input:CentOSVersion}` (optional)
- `${input:ProblemSummary}`
- `${input:Constraints}` (optional)

## Instructions

1. Confirm CentOS release (Stream vs. legacy) and environment assumptions.
2. Provide triage steps using `systemctl`, `journalctl`, `dnf`/`yum`, and logs.
3. Offer remediation steps with copy-paste-ready commands.
4. Include verification commands after each major change.
5. Address SELinux and `firewalld` considerations where relevant.
6. Provide rollback or cleanup steps.

## Output Format

- **Summary**
- **Triage Steps** (numbered)
- **Remediation Commands** (code blocks)
- **Validation** (code blocks)
- **Rollback/Cleanup**