Centos 7 ifconfig replacement. With the servers t...

Centos 7 ifconfig replacement. With the servers that mount Infiniband cards, when I use the ifconfig command, I get this warning: Ifconfig uses the ioctl access method to get the full address information, which limits hardware addresses to 8 bytes. When after I change dhcp to static in network-scripts and then I restart servicesystemctl restart NetworkManager. The command comes preinstalled on many Linux distributions. In this guide, we will highlight 6 deprecated Linux commands and alternative tools that you should be using instead in your Linux system. g. Obsolete: ifconfig The main job of this command is to check the configuration of kernel-resident network interfaces. As someone who doesn't closely follow what's happening with Linux tools, I recently tried a minimal CentOS 7 install, and found out by chance that a command I use a lot on Windows has been deprecated in a number of Linux releases. The alternative command to ifconfig is ip command, which provides a more powerful and flexible network configuration interface. For In CentOS 7 minimal installation, you can use alternate command – ‘ ip addr ‘ to view the network interface details. For many Linux users, the `ifconfig` command is a familiar tool for network interface configuration. This post provides a quick reference to alternative commands that can help you manage and inspect your network interfaces. Learn every detail regarding the installation and usage of ifconfig on CentOS. In this article, we will see how to solve "-bash: ifconfig: command not found"error in CentOS/Redhat 7/8. Configuring ip networking with ifcfg files | Configuring and managing networking | Red Hat Enterprise Linux | 8 | Red Hat Documentation Interface configuration (ifcfg) files control the software interfaces for individual network devices. Remember that thing I told you about using ifconfig? Yeah, don’t do that. Some functionality has been incorporated into the ip utility (see here for examples), but I have not found a replacement Get a grip on network configuration in CentOS with our comprehensive tutorial on using ifconfig. Below are the step to… The Linux ifconfig command is used to inspect network interfaces and handle basic network configuration. In addition, it presented a list of common ifconfig commands for network interface management. ifconfig is Missing by Default on CentOS/RHEL 7, Fedora 18, and Arch Linux Since the net-tools package hasn’t seen any active development from the Linux community, and some Linux distros have decided to replace this utility toolkit with the iproute2 package. On a Minimal installation of RHEL 8 / CentOS 8, the ifconfig command is provided by the package net-tools, which is Basic networking management tools group package. Also running sudo /sbin/ifconfig returns commmand not found. So open your mind to the power of the ip command ifconfig 及 netstat 工具程序在 CentOS 5 及 6 的应用手册内被置标为降级已接近十年，而 Redhat 决定在 CentOS 7 不会缺省安装 net-tools 组件。 其中一个转换的原因就是 ifconfig 不会显示界面卡所拥有的全部 IP 位置 —— 请改用 ip 指令。 取而代之的工具是 ss 和 ip。 Several readers have shared a blog post: One of the ongoing system administration controversies in Linux is that there is an ongoing effort to obsolete the old, cross-Unix standard network administration and diagnosis commands of ifconfig, netstat and the like and replace them with fresh new Linux s Learn how to fix “ifconfig: Command not Found” in Ubuntu. Mar 5, 2025 · If you’re seeing the message “ifconfig not found” on your system, it means that your distribution has likely shifted to these newer utilities. TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0. so I try ip link set Although the ifconfig command and the netstat command work on Photon OS, VMware recommends that you use the ip or ss commands. By enabling the EPEL repository and installing the net-tools package, you can use ifconfig and netstat to display information about network interfaces and network connections respectively. 2. This article explains why ifconfig is not installed by default when the Minimal Install option is used with RHEL 7, and what the recommended alternatives are to using ifconfig. As the system boots, it uses these files to determine what interfaces to bring up and how to configure them. Ifconfig is obsolete! For replacement ifconfig is not a part of the Minimal Install of Red Hat Enterprise Linux 7. In this comprehensive guide, we will explore everything you need to know about using ifconfig on CentOS, from basic commands to advanced networking configurations. Specifically, the deprecated Linux networking commands in question are: arp, ifconfig, iptunnel, iwconfig, nameif, netstat, and route. If you needed the usernetctl command, it's among the deprecated functionality and you should start using the appropriate nmcli subcommands as its replacement. We will discuss how to use ifconfig to view network interface information, configure network interfaces, and troubleshoot network connectivity issues. ifconfig and ip a / ip link `ifconfig` is used to configure a network interface, but it has modern alternatives in `ip a` and `ip link`. This is a quick tip for those who have installed CentOS 7 on their machines and get a ifconfig not found error. I know you’re tempted to just keep using it for as long as you can get away with it, but it hasn’t been supported for more than ten years. 0/CentOS 7. 5. Chapter 36. At boot time, its main use is to set up interfaces as required. By the end, you’ll have `ifconfig` back in your toolkit and understand how to transition to newer network management tools. Later, with the introduction of CentOS 7, a new replacement utility, called IP, was available as the default network management tool. For example, to display a list of network interfaces, run the ss command instead of netstat. 3. What are de differences between ifconfig and ip? Let’s try to summarize them: Show network devices ifconfig ip addr showip link show Enable a network interface ifconfig Discover how to install ifconfig on CentOS 7. 0/Oracle Linux 7. However, if you’ve recently set up a CentOS Linux system (especially minimal installations or newer versions like CentOS 8/9), you might encounter an One of the most common ways to configure a network interface in Linux is using the ifconfig command. Fix the "ifconfig command not found" error on Debian by installing net-tools, using /sbin/ifconfig, running with sudo, or updating PATH. The ip command is a modern replacement for ifconfig and provides comprehensive networking details on Linux systems. By default, NetworkManager now uses the key file format to store new connection profiles. Jun 3, 2022 · Many Linux distributions have deprecated the use of ifconfig and route in favor of the software suite iproute2, such as ArchLinux or RHEL since version 7, which has been available since 1999 for Linux 2. bash: ifconfig: command not found --> the command is deprecated, see ifconfig and locate command not found, bash: ifconfig: command not found on Unix & Linux Stack Exchange where the question belongs. Although, it is still possible to use ifconfig with CentOS 7. Learn how to install and use the deprecated ifconfig command on Linux, and explore its replacement, the 'ip' command, for network configurations. All you have to do is to install the net-tools package using yum. This article will guide you on how to use ifconfig on CentOS. Note that the ifcfg format is still supported. This method offers a easier solution if ifconfig is not available or if you prefer using a more up-to-date command for network configuration. Understand that this command does require admin privileges (so you’ll either have to su to root or make use of sudo — depending upon your Nov 28, 2025 · This blog will guide you through installing `ifconfig` on major Linux distributions, explain why it’s missing, and introduce its modern replacement, the `ip` command. It provides a quick way to view, manage, and troubleshoot network interfaces (e. 9. I’ll offer a few examples of how the replacement command is used. Learn how to install ifconfig in CentOS 7 Linux, as it's no longer installed and available by default having been replaced with the ip command. iproute2 includes support for all common functions of ifconfig (8), route (8), arp (8), and netstat (1). If you encounter the command not found error while using ifconfig, here's an easy way to solve it. Use 'yum install net-tools' for network administration. Running ifconfig returns command not found. In this tutorial, you will learn how to install and use ifconfig on Discover how to use ifconfig under CentOS 7 through this comprehensive guide. How to install ifconfig in CentOS 7 Run the following command to install net-tools package in CentOS 7, this will #3. It is time for you to move on. 2. In this tutorial, you will learn how to install and use ifconfig on CentOS 7. ifconfig ifconfig command CentOS 7 doesn’t come with ifconfig tools. By the end, you‘ll be a pro at getting ifconfig running on any Linux distro and leveraging it for your network admin tasks! A Brief History of ifconfig To understand the significance of ifconfig, we need to go back to the early days of Unix. This article provided instructions for installing and using the ifconfig command on CentOS. This article shares deprecated Linux networking commands and their replacements, which includes ifconfig, netstat, arp, iwconfig, iptunnel, nameif and route. In this guide, we have shown you how to install ifconfig and netstat on RHEL 7. The static ip settings suppose to be updated but it doesn't. You may noticed the error while executing the ifconfig. Aug 14, 2015 · Configure tunnel over IP Configure ARP or NDISC cache entry With all of that said, let’s embark on replacing ifconfig with ip. It encourages users to use ‘ip’ tool for network administration. Dec 19, 2025 · If you’ve recently set up a CentOS 7 system and tried to run the `ifconfig` command, you might have encountered a frustrating error: **“ifconfig: command not found”**. Follow our easy guide to enable network configuration tools for efficient server management. , checking IP addresses, enabling/disabling interfaces). Configuring IP Networking with ifcfg Files | Networking Guide | Red Hat Enterprise Linux | 7 | Red Hat Documentation Interface configuration (ifcfg) files control the software interfaces for individual network devices. Sep 22, 2025 · Learn to install ifconfig on CentOS using yum and explore ip command alternatives for network configuration. What is ifconfig? Ifconfig stands for "interface configuration" and is a command-line utility Discover how to install ifconfig on CentOS 7. Because Infiniband address has 20 bytes, only the first 8 bytes are displayed correctly. 3 + virtualbox) . However, it is now considered a deprecated command because it has been replaced by ip command, which offers more advanced features and better control over network configuration. But as seen in "Getting a Docker container's IP address from the host", using docker inspect can be more useful depending on your use CentOS 7: ifconfig command not found So if you do a fresh “minimal” installation of CentOS 7 you might run into this issue when trying to run ifconfig. Start optimizing your connection now! Learn how to install ifconfig on CentOS 7 easily. ifconfig is a part of net-tools package. IP command is similar to ifconfig, which is very familiar for assigning Static IP Address, Route, Default Gateway, and configure network interface parameters on Linux system. These programs (except iwconfig) are included in the net-tools package that has been unmaintained for years. If you are a Linux user, especially one who prefers CentOS as your operating system, mastering the ins and outs of ifconfig is a must. . 0 b) TX bytes:0 (0. 0 b) Use below command to show details for interface eth0 in system ifconfig eth0 To get all interfaces details using ifconfig use following command. I am ro On recent Linux based operating systems there is no ifconfig and traceroute. The ifconfig command first appeared in Unix Version 7 in 1979. This is because CentOS 7 (and its upstream distribution, Red Hat Enterprise Linux 7) deprecated the traditional `net-tools` package—where `ifconfig` resides—in favor of the more modern `iproute2` suite (which includes Use ifconfig on CentOS and Rocky Linux to manage network interfaces. However, there exist certain Linux distributions such as CentOS 7, which do not incorporate the ifconfig command by default anymore. ifconfig -a ifconfig ip ipaddr ipconfig network bash: ifconfig: command not found However, certain distributions like CentOS 7 have deprecated the command and do not include it by default anymore. ifup and ifdown will still be available, but now do their job through NetworkManager, unless you install the deprecated network-scripts RPM. This tutorial shows how to install and use the ifconfig command. Therefore, we have come up with a tutorial that provides a step-by-step guide to install ifconfig and employ it on CentOS. However, certain distributions like CentOS 7 have deprecated the command and do not include it by default anymore. These programs (except iwconfig) are included in the net-tools package that has been unmaintained for years and since CentOS 7 it’s deprecated and not installed in a system by default. Learn how to use it. If you are using CentOS/Redhat from long time then you might be used to ifconfigcommand to check and troubleshoot Linux network issues. Some functionality has been incorporated into the ip utility (see here for examples), but I have not found a replacement See "Replacing ifconfig with ip" it is most often recommended to move forward with the command that has replaced ifconfig. Our Server Management Support team is here to help you with your questions. IP command replaces the ifconfig command on modern Linux distributions because it does not support InfiniBand addresses. Missing ifconfig command on your CentOS server? This post helps you to install ifconfig on CentOS 7. Discover how to manage your network configurations with the ifconfig command's usage, installation, and modern alternatives in CentOS 7. The ipconfig and netstat commands are deprecated. Did you know that in 2009 it was announced that the ifconfig Linux command would be deprecated? </figure> On mostly Linux distribution the ifconfig command has been deprecated and will be definitely replaced by ip command. In this article, we will explore the ifconfig command in CentOS 7 in detail. Ifconfig Ifconfig is a command used to configure network interfaces on Linux machines. These files are usually named ifcfg-name, where the suffix name Bot Verification Verifying that you are not a robot I've just installed CentOS7 as a virtual machine on my mac (osx10. That command is ip, and it does a great job of stepping in for the out-of-date ifconfig. How to view IP address details using ip command? The ifconfig command is obsolete and you should no longer use it! This tutorial covers the ip command which you should use in place of ifconfig. On recent Linux based operating systems there is no ifconfig and traceroute. The ifconfig command is a powerful tool that allows users to view, configure, and manage network interfaces in CentOS 7. Time to try out the ip command and get serious about kicking the ifconfig habit once and for all. These files are named ifcfg-name_pass Previously ifconfig was a default network management command-line utility for all versions of CentOS through CentOS 6. b7nfsr, fdpx, 3v6w3, rr4hyc, tew4v, vi0w1, etse4, ix6r, wseesc, jdcaug,