Should you use another IP address? Here’s how to add one to your Linux server


Your Linux server naturally comes with its own public IP address, but there is a way to add another to your server if you wish. In this article, you will learn the importance of getting a new IP address and how to do it correctly.

Importance of Acquiring a New IP Address

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Here’s how to get an alternate IP address on your Linux server and why you should.

Obtain another IP address has many advantages. If you have multiple IP addresses, you can use multiple applications on a single port. Running apps can sometimes conflict, especially if they are tied to an IP address. This way, you can avoid this hassle and access it easily.

If you are having issues with web content servers, you may want to fix this issue through a reverse proxy. This particular server places content in other locations under a single port.

Also, Docker works well with multiple addresses. For those unaware, Docker is a software platform used to manage applications in portable containers.

Also, when you have many external IPs, there is nothing to worry about if applications are not running or not running on a machine.

How to Add Additional IP Address to Linux Server

All over the world, public IP addresses have been scattered. However, Internet companies may have already taken ownership of some of them. Still, there is a way for you to acquire an additional IP address for your Linux server.

You can actually rent or buy them right away from reputable cloud providers if you have a budget for them.

While other companies will only let you buy one IP address, other providers might offer you a nice package of more than two addresses.

As for corporations, they could amass a myriad of blocks through a brokerage. However, it is expected to be much more expensive than other offerings since IP addresses can cost upwards of $1,000.

It is necessary to configure the network interface so that the server responds positively when a new IP address has been placed.

Related article: Mozilla VPN Boosts Security with a Custom DNS Server: How Does the Multi-Hop Feature Work?

How to Configure Linux to Access Many IP Addresses

Linux server setup can be tricky, but there are some steps that can help you deal with it. For example, Ubuntu’s netplan relies on YAML templates, and here’s how you can use it.

First, create a template located in /etc/netplan/config.yaml. Then you can now start the configuration. Below is an example configuration that you can modify later.


version 2





After that, be sure to specify IP addresses as singular /32 blocks. Once you are done, test the netplan via sudo netplan try.

If it works on your end, run the configuration via sudo netplan apply, then run tcpdump to start the routing debugging process.

If you are a Windows user and you encounter the message “Windows has detected an IP address conflict”, MakeUseOf shared a solution on how to fix this error.

Also Read: How Does VPN Hide My IP Address?

This article belongs to Tech Times

Written by Joseph Henry

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