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Dec 12, 2023 · Syntax of `ifconfig`Command in Linux. ifconfig [interface] [options] Where: [interface] is the network interface you want to configure or display information for (e.g., eth0, wlan0). [options] are various command-line options that can be used to modify the behavior of ifconfig.
Jun 28, 2021 · It is used to configure and view the status of the network interfaces in Linux operating systems. With ifconfig, you can assign IP addresses, enable or disable interfaces, manage ARP cache, routes, and more. In this article, we’ll explore how to use the ifconfig command.
- View Active Network Interface Settings. Run ifconfig with no arguments to print essential information about all active network interfaces: ifconfig. The output shows crucial data about the network interfaces, like
- Display a Shortlist of Active Interfaces. The ifconfig command without any arguments prints a rather detailed output about all active interfaces. Use the -s flag with ifconfig to display a concise summary of every active interface
- Print the Verbose Output. As opposed to the -s flag, the verbose option (-v) prints a more detailed output. Depending on the system, the outcome is either the same as ifconfig without arguments or slightly more in-depth.
- Show Every Network Interface Configuration. Without options, ifconfig displays active interfaces only. To get info about both active and inactive network interfaces, run ifconfig with the -a option
- The “ifconfig” command with no arguments will display all the active interfaces details. The ifconfig command also used to check the assigned IP address of an server.
- To Display Information of All Network Interfaces: # ifconfig -a. eth0 Link encap:Ethernet HWaddr 00:0c:29:9b:49:bc. inet addr:192.168.134.128 Bcast:192.168.134.255 Mask:255.255.255.0.
- To View Network Settings of Specific Interface: # ifconfig eth0.
- The “up” or “ifup” flag with interface name (eth1) activates an network interface: # ifconfig eth1 up OR # ifup eth1. # ifconfig. eth0 Link encap:Ethernet HWaddr 00:0c:29:9b:49:bc.
- List Network Interfaces in Linux. The “ifconfig” command with no arguments will display all the active network interface configuration details that includes their assigned IP addresses, netmasks, and other relevant information.
- Display Information on All Network Interfaces. The following ifconfig command with the -a argument will display information on all active or inactive network interfaces on the server.
- View Network Settings of Specific Interface. Using interface name (eth0) as an argument with the “ifconfig” command will display details of the specific network interface.
- How to Enable a Network Interface. The “up” or “ifup” flag with interface name (eth0) activates a network interface if it is not inactive state and allows to send and receive information.
Mar 18, 2024 · In this article, we learned what the ifconfig command is used for. Then, we looked at how to use it to review interfaces in a couple of formats. Next, we saw how the command allows us to bring interfaces up and down and how we can use it to reconfigure networking settings.
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Jan 15, 2024 · Learn how to use the ifconfig command to configure and manage network interfaces in Linux. See 19 examples of ifconfig with different options and arguments to display, set, or change network settings.
