Linux IP Address Config Example
Step-by-step tutorial for Linux static IP configuration.
1. View the current state of the network card in the IT-Laptop computer.
1.
- From the Favorites bar, select
Terminal.Terminal.
2. At the prompt, type
ip addr show and press
Enter to view the current state of the network adapter.
3. Type
cd /etc/sysconfig/network-scripts and press
Enter.
4. Type
ls and press
Enter to view the files in this folder. (Take note of ifcfg-enp2s0, which is the configuration file for the network
adapter.)adapter)
2.
Configure the IP version 4 TCP/IP settings for the enp2s0 network connection.
1.
- Type nano ifcfg-enp2s0 and press Enter to edit the first adapter.
2. Using the keyboard and arrow keys, configure the IP settings as follows:
-- NETMASK=
255.255.255.0
- BROADCAST=
192.168.0.255
- GATEWAY=
192.168.0.5
- Remove the line that reads BOOTPROTO=dhcp.
3.
Type
Ctrl +
x to exit the editor.
4. Type
y to save the modified buffer to the disk.
5. Press
Enter to save the file using the default name.
3.
Configure DNS.
1.
- At the prompt, type nano /etc/resolv.conf and press Enter to configure the DNS server addresses.
2. Type
nameserver 163.128.78.93 and press
Enter to start a new line.
3. Type
nameserver 163.128.80.93 on the new line.
4. Type
Ctrl +
x to exit the editor.
5. Type
y to save the modified buffer to the disk.
6. Press
Enter to save the file using the default name.
7. Type
ip link set enp2s0 down and press
Enter to bring the interface down.
8. Type
ip link set enp2s0 up and press
Enter to bring the interface back up with the new configuration.
4.
Use ping to test the corrections to the enp2s0 interface card.
1.
- At the prompt, type ping -c4 192.168.0.5 and press Enter to confirm the connection to the network and default gateway.
2. Type
ping -c4 163.128.80.93 and press
Enter to confirm the connection to the DNS server and the outside network.
