Configure Networking from the Command Line

Question 1

What command displays the network interface associated with a MAC address?

Answer 1

ip link

Question 2

What command displays only the active connections?

Answer 2

nmcli con show –active

Question 3

What command displays all configuration settings for the active connection?

Answer 3

nmcli con show “Connection name”

Question 4

What command show the device status?

Answer 4

nmcli dev status

Question 5

What command displays the settings for an interface?

Answer 5

nmcli dev show enX

Question 6

What command creates a static connection with the same setting as the active connection?

Answer 6

nmcli con add con-name static-addr ifname eth0 type ethernet ipv4/method manual ipv4.dns 172.25.250.220 ipv4.addresses 172.25.250.1/24 ipv4.gateway 172.25.250.254

Question 7

How do you activate the new connection?

Answer 7

nmcli con up <new></new>

Question 8

How do you disable the original connection to not start at boot?

Answer 8

nmcli con mod “Original Connection” connection.autoconnect no