If Add Network Interface Card Into Host How To B

• Check if the card is detected by NetworkManager with:

  nmcli device status
  

• Then bring up the device with:

  sudo nmcli device connect <interface_name>
  

• The device should then be automatically brought up and provided an address via DHCP.
• Give the device a static IP address:

  sudo nmcli connection modify <INTERFACE_NAME> ipv4.addresses <STATIC_IP/SUBNET_MASK> ipv4.method manual
  

• Provide a gateway address:

  sudo nmcli connection modify <INTERFACE_NAME> ipv4.gateway <GATEWAY_IP>
  

• Assign a DNS address:

  sudo nmcli connection modify <INTERFACE_NAME> ipv4.dns <DNS_IP>
  

• Bring the connection down:

  sudo nmcli connection down <INTERFACE_NAME>
  

• Bring the connection back up:

  sudo nmcli connection up <INTERFACE_NAME>