Oracle Linux 10 – Common Problem 034 – Diagnosis and Fix

📖 ~1 min read

Table of contents

1. Symptom & Impact
2. Environment & Reproduction
3. Root Cause Analysis
4. Quick Triage
5. Step-by-Step Diagnosis
6. Solution – Primary Fix
7. Solution – Alternative Approaches
8. Verification & Acceptance Criteria
9. Rollback Plan
10. Prevention & Hardening
11. Related Errors & Cross-Refs
12. References & Further Reading

Symptom & Impact

Static IP configuration disappears when host restarts.

Environment & Reproduction

nmcli shows connection present but device falls back to DHCP.

Root Cause Analysis

Run nmcli connection show and inspect keyfile under /etc/NetworkManager/system-connections.

Quick Triage

Profile not saved or autoconnect disabled.

Step-by-Step Diagnosis

Set ipv4 method/manual and autoconnect yes via nmcli, then reload connection.

Solution – Primary Fix

Reboot and validate with ip addr and nmcli device status.

Solution – Alternative Approaches

Version-control keyfiles in infrastructure repo.

Verification & Acceptance Criteria

Reactivate previous profile using nmcli connection up .

Rollback Plan

Apply settings through rhel-system-roles.network.

Prevention & Hardening

nmcli con mod; nmcli con up; systemctl restart NetworkManager

Related Errors & Cross-Refs

Attach NM logs from journalctl -u NetworkManager -b.

Related tutorial: View the step-by-step tutorial for oracle-linux-10.

View all oracle-linux-10 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

firewalld zone binding follows active connection profile.