linux-troubleshooting

Linux Troubleshooting Workflow Overview Specialized workflow for diagnosing and resolving Linux system issues including performance problems, service failures, network issues, and resource constraints. When to Use This Workflow Use this workflow when: Diagnosing system performance issues Troubleshooting service failures Investigating network problems Resolving disk space issues Debugging application errors Workflow Phases Phase 1: Initial Assessment Skills to Invoke bash-linux - Linux commands devops-troubleshooter - Troubleshooting Actions Check system uptime Review recent changes Identify symptoms Gather error messages Document findings Commands uptime hostnamectl cat /etc/os-release dmesg | tail -50 Copy-Paste Prompts Use @bash-linux to gather system information Phase 2: Resource Analysis Skills to Invoke bash-linux - Resource commands performance-engineer - Performance analysis Actions Check CPU usage Analyze memory Review disk space Monitor I/O Check network Commands top -bn1 | head -20 free -h df -h iostat -x 1 5 Copy-Paste Prompts Use @performance-engineer to analyze system resources Phase 3: Process Investigation Skills to Invoke bash-linux - Process commands server-management - Process management Actions List running processes Identify resource hogs Check process status Review process trees Analyze strace output Commands ps aux --sort = -%cpu | head -10 pstree -p lsof -p PID strace -p PID Copy-Paste Prompts Use @server-management to investigate processes Phase 4: Log Analysis Skills to Invoke bash-linux - Log commands error-detective - Error detection Actions Check system logs Review application logs Search for errors Analyze log patterns Correlate events Commands journalctl -xe tail -f /var/log/syslog grep -i error /var/log/* Copy-Paste Prompts Use @error-detective to analyze log files Phase 5: Network Diagnostics Skills to Invoke bash-linux - Network commands network-engineer - Network troubleshooting Actions Check network interfaces Test connectivity Analyze connections Review firewall rules Check DNS resolution Commands ip addr show ss -tulpn curl -v http://target dig domain Copy-Paste Prompts Use @network-engineer to diagnose network issues Phase 6: Service Troubleshooting Skills to Invoke server-management - Service management systematic-debugging - Debugging Actions Check service status Review service logs Test service restart Verify dependencies Check configuration Commands systemctl status service journalctl -u service -f systemctl restart service Copy-Paste Prompts Use @systematic-debugging to troubleshoot service issues Phase 7: Resolution Skills to Invoke incident-responder - Incident response bash-pro - Fix implementation Actions Implement fix Verify resolution Monitor stability Document solution Create prevention plan Copy-Paste Prompts Use @incident-responder to implement resolution Troubleshooting Checklist System information gathered Resources analyzed Logs reviewed Network tested Services verified Issue resolved Documentation created Quality Gates Root cause identified Fix verified Monitoring in place Documentation complete Related Workflow Bundles os-scripting - OS scripting bash-scripting - Bash scripting cloud-devops - DevOps