What is ifconfig eth0 down?
The “down” or “ifdown” flag with interface name (eth0) deactivates the specified network interface. For example, the “ifconfig eth0 down” or “ifdown eth0” command deactivates the eth0 interface if it is in an inactive state.
How do I turn down the Ethernet interface?
Two methods can be used to bring interfaces up or down.
- 2.1. Using “ip” Usage: # ip link set dev up # ip link set dev down. Example: # ip link set dev eth0 up # ip link set dev eth0 down.
- 2.2. Using “ifconfig” Usage: # /sbin/ifconfig up # /sbin/ifconfig down.
What replaced ifconfig in Ubuntu?
Following some improvements in the kernel and the gradual move to driving network things via netlink; ifconfig has been largely replaced by the ip command. This is the main command that would be used in place of ifconfig. It will just display the IP addresses assigned to all interfaces.
What is the difference between the eth0 and lo interfaces?
eth0 is a physical interface representing Ethernet network card. It’s used for communication with other computers on the network and on the Internet. lo is a special virtual network interface called loopback device.
What is ifconfig command in Ubuntu?
Ifconfig is used to configure the kernel-resident network interfaces. It is used at boot time to set up interfaces as necessary. After that, it is usually only needed when debugging or when system tuning is needed. If no arguments are given, ifconfig displays the status of the currently active interfaces.
How do I turn off Ubuntu interface?
There are the following different methods are available that can be used to enable and disable your network interface in Ubuntu:
- ifconfig command.
- nmcli command.
- systemctl command.
- nmtui command.
- Ip command.
- ifdown/ifup.
How do I make ifconfig changes permanent in Ubuntu?
To make your changes persistent, you need to modify configuration files like /etc/network/interfaces . For example, to disable an interface you can simply remove its config part from the file. You can check man interfaces for available options and format of network config file for Ubuntu.
What does ifconfig stand for?
ifconfig stands for “interface configuration.”. It is used to view and change the configuration of the network interfaces on your system.
What is broadcast ifconfig?
The “ ifconfig ” command is used for displaying current network configuration information, setting up an ip address, netmask or broadcast address to an network interface, creating an alias for network interface, setting up hardware address and enable or disable network interfaces.
What is ifconfig command?
Ifconfig Command – Explained in Detail. ifconfig is a command line tool used to configure a network interface in Linux.It can be used to set-up any/all the network interfaces such as Ethernet, wireless, modem and so on that are connected to your computer.