Linux Sudo Error User "Is Not In The Sudoers File"

This Post show Hot-to Solve the Step Involving the Sudo Disabled because Is Not In The Sudoers File.

The Link Containing the Troubleshooting on Is Not In The Sudoers File is Contained Here Below.

 

Take the Time of Looking and Understanding to Get a Clear Insight...

The Link 2 Solution is Contained Here Below:

 

The Solution for How-to Install Firefox Plugin for OpenJDK Java is Here Below:

How-to Install OpenJDK Plugin

The Link Contain Detailed Guide on Installing the Firefox Plugin for OpenJDK is here.

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