Last Updated On: March 2, 2018 Welcome to ifconfig vs ip usage guide on Linux. For example to find available version of firefox run the following command. Completely removing net-tools with all configuration files: Following command should be used with care as it deletes all the configuration files and data: sudo apt-get purge net-tools or you can use following command also: sudo apt-get purge --auto-remove net-tools Above command will remove all the configuration files and data associated with net-tools package. With the ifconfig command, that would look like: ifconfig eth0 192. Installing net-tools: After system update use the following command to install net-tools: sudo apt-get install net-tools Above command will confirm before installing the package on your Ubuntu 12. Promiscuous mode allows a network to receive all packets on the network.
If a single interface argument is given, it displays the status of the given interface only; if a single -a argu? The interface eth0 can be replaced with any other interface name. However, in some instances e. From the synopsis above, we can simply use ifconfig command format as: ifconfig interface ip address Here are some ifconfig command examples for you: Example 01 - Using ifconfig command with no option. See Ifconfig is a command line tool used to configure the kernel-resident network interfaces. Address FamiliesIf the first argument after the interface name is recognized as the name of a supported address family, that address family is used for decoding and displaying all protocol addresses. For more detailed information on the ip command, take a look at the ip man page by issuing the command man ip from a terminal window. If no arguments are given, ifconfig displays the status of the currently active interfaces.
While we have discussed quite a few command line options here, there are many others as well. He carries professional experience in system level programming, networking protocols, and command line. Including -s twice ip -s -s address will reveal more information about packet transmission. Not all devices can change this setting, and those that can vary in what values they support. This is often used to monitor network activity.
Display Information of All Network Interfaces The following ifconfig command with -a argument will display information of all active or inactive network interfaces on server. After downloading the latest package list with the help of above you can run the installation process. Example 03 - Using ifconfig command to change ip address for existing Ethernet card in Ubuntu system. To do the same with the ip command, it is run as such: ip a This command will list all interfaces with their associated information Figure 1 above. Display all interfaces, even if down ifconfig eth0 192. By default ifconfig command will be not found in fresh installation centos 7 so we need to install package first to use ifconfig command.
In networking, this is the size of the largest network layer protocol data unit that can be communicated in a single network transaction. I also stumbled on this nuisance, but as Devendra wrote in you can get all details about the container without net-tools. The tutorials and guides are owner's own works and experiences. You can can't recover the delete data, so, use this command with care. The network interface to the default gateway is eth0.
Promiscuous mode is used for packet sniffing, mostly for diagnosing network connectivity problems. For example, to disable an interface dubbed eth0, use the ifconfig command in the following way: ifconfig eth0 down Similarly, to enable, use the following command: ifconfig eth0 up Q5. Even with these differences, both commands are used for similar purposes. As time passes, more and more features are becoming easier to use with the ip command instead of with ifconfig. For example, in my case, the following output was produced. Explore setting static ip using the nmcli tool or by modifying network configuration file on your distribution for permanent changes.
Either by elevating ourselves to root, or by sudoing. How to Add New Alias to Network Interface The ifconfig utility allows you to configure additional network interfaces using alias feature. This includes arp, ifconfig, netstat, rarp, nameif and route. Update : The networking command ifconfig is deprecated and replaced by in most Linux distributions. Some guides available on this blog are: ifconfig eth0 192. How to use the ifconfig command? 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. For example: ifconfig eth0 promisc Note that you can disable the promiscuous mode in the following way: ifconfig eth0 -promisc Q7.
For example: ip address show This is the main command that would be used in place of ifconfig. This you can do by using the 'mtu' flag along with the new mtu value. How to disable or enable a network interface using ifconfig? But note that changes made with these commands are not persistent against reboots. . Note, though, that you are having to do both install deprecated tools, and modify the install.