Below are basic configuration instructions to setup static IP address on Redhat Enterprise Linux ( RHEL7 ). First, list your network interfaces with ip
command:
# ip addr show 2: enp0s3:mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 08:00:27:15:38:b7 brd ff:ff:ff:ff:ff:ff valid_lft forever preferred_lft forever inet6 fe80::a00:27ff:fe15:38b7/64 scope link valid_lft forever preferred_lft forever
Make a note of network interface you would like to set with static IP address. Next, locate a corresponding script to the network interface name. In our case this is enp0s3
located at /etc/sysconfig/network-scripts/ifcfg-enp0s3
. Open this file and enter the following information. Note that your HWADDR,DEVICE,UUID
will be different:
DEVICE="enp0s3" NETBOOT="yes" HWADDR="08:00:27:15:38:B7" TYPE="Ethernet" BOOTPROTO="none" NAME="enp0s3" UUID="462f4834-4fe7-43a7-84e7-83b2722e94c1" ONBOOT="yes" IPADDR="10.1.1.110" NETMASK="255.0.0.0" GATEWAY="10.1.1.1"
The above will set our enp0s3
network interface with static IP address 10.1.1.110. Once you have made the necessary changes restart RHEL7’s system networking:
# systemctl restart network
Confirm that your IP address has been updated:
# ip addr show 1: lo:mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: enp0s3: mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 08:00:27:15:38:b7 brd ff:ff:ff:ff:ff:ff inet 10.1.1.110/8 brd 10.255.255.255 scope global enp0s3 valid_lft forever preferred_lft forever inet6 fe80::a00:27ff:fe15:38b7/64 scope link valid_lft forever preferred_lft forever
Alternatively, follow this link to check your Local and Public IP address directly using your web browser.