When Forwarding IP packets toward their destinations, Ubuntu determines which interface to use to forward the packet to the destination based on the information in its routing table.
The way we copy text from and paste text into the Windows Command Prompt is a little different. Because if you right click on the CMD you will not see a menu where you have the option to copy text.
A host record is the type of DNS record that resolves a particular name to a particular IP address. There are two different host record types – type A and type AAAA.
To manage processes you need to know the PID of the process you want to manage. For example, let’s say you want to terminate a process that is unresponsive. We can terminate a process using the kill command, but we need to know the process ID.
By default, the docker command should run with root privileges. To run Docker as a non-root user in Ubuntu, you have to add the user to the docker group. Otherwise, you will receive an error.