No-IP Linux - Shell-Bash

No-IP Linux is a dynamic update client that allows you to automatically update your IP address with No-IP's dynamic DNS service. It is available for Linux operating systems and can be run as a shell script or a cron job.

Installation

To install No-IP Linux on your system, follow these steps:

1. Download the latest version of the client from the official No-IP website: https://www.noip.com/download?page=linux
2. Extract the downloaded archive using the following command:

tar xzf noip-duc-linux.tar.gz

3. Change to the extracted directory:

cd noip-2.1.9-1/

4. Run the installation script:

sudo make install

5. Follow the prompts to complete the installation process.

Configuration

After installing the client, you will need to configure it to update your IP address with No-IP's dynamic DNS service. To do this, follow these steps:

1. Run the configuration script:

sudo noip2 -C

2. Follow the prompts to enter your No-IP account information and select the hostnames you want to update.
3. Save the configuration and start the client:

sudo noip2

Running as a Cron Job

To ensure that your IP address is always up-to-date, you can run the No-IP Linux client as a cron job. To do this, follow these steps:

1. Open the crontab editor:

crontab -e

2. Add the following line to the file to run the client every hour:

0 * * * * /usr/local/bin/noip2

3. Save and exit the editor.

Conclusion

No-IP Linux is a powerful tool that allows you to keep your dynamic IP address up-to-date with No-IP's dynamic DNS service. By following the steps outlined in this guide, you can easily install and configure the client on your Linux system, and set it up as a cron job to ensure that your IP address is always up-to-date.