[DEBUG] Linux resolve error ‘chmod: changing permissions of ‘resolv.conf’: Operation not permitted’

Error Reporting Command

# chmod 644 resolv.conf

Error Code

chmod: changing permissions of 'resolv.conf': Operation not permitted

Analysis

This file is locked by chattr command

Solution

Step One: Cancel the lock

# chattr -i /etc/resolv.conf

Step Two: Change the file’s privilege

# chmod 644 resolv.conf

Step Three: Relock this file

# chattr +i /etc/resolv.conf