Redhat Linux Network Interface Configuration (NIC) File Location

Where are NIC (network interface configuration) files located in the Redhat / Fedora / Centos Linux?

/etc/sysconfig/network-scripts/ directory contains network interface configuration information for the Redhat Enterprise Linux (RHEL) / Fedora / CentOS Linux. This is where you configure how your system is connected to the network and the internet. The files are as follows for each interface:

  1. /etc/sysconfig/network-scripts/ifcfg-eth0 – First network interface configuration file.
  2. /etc/sysconfig/network-scripts/ifcfg-eth1 – Second network interface configuration file.
  3. /etc/sysconfig/network-scripts/ifcfg-eth2 – Third network interface configuration file.
  4. /etc/sysconfig/network – Default route (gateway) and hostname is defined here.
  5. /etc/resolv.conf – DNS client configuration file to set your DNS nameserver Internet address (in dot notation) that the resolver should query.

You can use the following command to make changes using GUI based tools to make the changes to network configuration files:
# neat-tui
# neat-gui
See the following tutorials for more information:

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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