nmcli-connection:tldr:af139

This command is used to add a new network connection using the nmcli tool in Linux.

Here's a breakdown of the command:

• connection add: This part of the command specifies that we want to add a new network connection.
• ifname ${interface_name}: Here, ${interface_name} is a placeholder for the name of the interface (e.g., eth0, ens33) through which you want to create the connection.
• type ${ethernet}: The ${ethernet} placeholder represents the type of connection you want to create, in this case, an Ethernet connection.
• ip4 ${10-0-0-7-8}: This defines the IPv4 address to be assigned to the connection. ${10-0-0-7-8} is a placeholder for the specific IP address you want to assign.
• gw4 ${10-0-0-1}: This sets the IPv4 gateway address for the connection. ${10-0-0-1} is a placeholder for the specific gateway IP address.
• ipv4.dns ${10-0-0-1}: This specifies the IPv4 DNS server to be used for the connection. ${10-0-0-1} is the placeholder for the specific DNS server IP address.
• ipv6.method ${ignore}: This sets the method for handling IPv6 protocol. ${ignore} is the placeholder for the method you want to choose, in this case, "ignore" means the system will ignore the IPv6 protocol for this connection.

Note: The IP addresses mentioned in the command are placeholders, and you would need to replace them with actual IP addresses suitable for your network configuration.