How to check ip address of Linux Server?

How to Check IP Address of a Linux Server

As a system administrator, it is crucial to be aware of the IP address of your Linux server, especially in today’s networked environment. An IP address is a unique identifier assigned to a device on a computer network, allowing devices to communicate with each other. In this article, we will explore the various ways to check the IP address of a Linux server.

Direct Answer: How to Check IP Address of Linux Server?

To check the IP address of a Linux server, there are several methods, and we will cover them in this article. But before we dive in, let’s first understand the types of IP addresses used in Linux.

Types of IP Addresses in Linux

There are two primary types of IP addresses used in Linux:

Private IP Address: A private IP address is a locally defined address that is not routable on the internet. It is used to communicate within a private network.

Public IP Address: A public IP address is a globally unique address that is routable on the internet and is used to communicate with devices on the internet.

Methods to Check IP Address of Linux Server

Now that we have understood the types of IP addresses, let’s explore the methods to check the IP address of a Linux server:

Method 1: Using ifconfig Command

The ifconfig command is a popular method to check the IP address of a Linux server. To use this command, follow these steps:

Open a terminal as a superuser (root user).

Type the command ifconfig and press Enter.

In the output, look for the inet addr field, which displays the IP address of the network interface.

Note down the IP address mentioned in the inet addr field.

Method 2: Using ip Command

The ip command is a modern and powerful command-line utility that provides more information than ifconfig. To use this command, follow these steps:

Open a terminal as a superuser (root user).

Type the command ip addr show and press Enter.

In the output, look for the inet field, which displays the IP address of the network interface.

Note down the IP address mentioned in the inet field.

Method 3: Using hostname -I or hostname -i Command

The hostname -I or hostname -i command is a quick way to check the IP address of a Linux server. To use this command, follow these steps:

Open a terminal as a normal user.

Type the command hostname -I or hostname -i and press Enter.

In the output, look for the IP address printed as a colon-separated list.

Note down the IP address.

Method 4: Using netstat Command

The netstat command is another method to check the IP address of a Linux server. To use this command, follow these steps:

Open a terminal as a superuser (root user).

Type the command netstat -an | grep -i "inet" | grep -v " not" and press Enter.

In the output, look for the IP address mentioned in the line starting with inet.

Note down the IP address.

Conclusion

In this article, we have covered the various methods to check the IP address of a Linux server, including using ifconfig, ip, hostname -I or hostname -i, and netstat commands. By using these methods, you can easily determine the IP address of your Linux server and take the necessary actions to manage your network effectively.

Additional Tips and Tricks

Make sure to check the IP address of your Linux server periodically to ensure that it has not changed due to network configuration changes or other factors.