Maintenance Task: Kernel or Package Updates

Description

Apply security and performance updates to system packages and kernel.

Frequency

Weekly or bi-weekly (depending on policy).

Checklist

• Security updates applied?
• Reboot needed for kernel update?
• Services restarted after library updates?

Update Steps

1. Check for available updates:

   dnf check-update
   

2. Apply updates:

   sudo dnf upgrade --refresh -y
   

3. Check if reboot required:

   needs-restarting -r
   

Preventive Actions

• Use dnf-automatic for unattended updates
• Monitor CVE announcements
• Use staging/testing VMs before prod updates

Tools & Commands

• dnf, yum, needs-restarting, dnf-automatic, reboot