Install the No-IP client (Dynamic Update Client) on AlmaLinux 9

 Install the No-IP client (Dynamic Update Client) on AlmaLinux 9

1. Install Required Packages

First, install the necessary packages to compile the client from source.

sudo dnf install gcc make wget tar

2. Download the No-IP DUC (Dynamic Update Client)

Download the latest version of the No-IP DUC.

cd /opt

wget https://www.noip.com/client/linux/noip-duc-linux.tar.gz


3. Extract the Downloaded File
Extract the downloaded tarball.

tar -zxvf noip-duc-linux.tar.gz
cd noip-2.1.9-1/

4. Compile the Client
Run the following commands to compile the client.
sudo make install

5. Configure the No-IP Client
After installation, you’ll be prompted to enter your No-IP account credentials 
(email and password) and choose the hostname(s) to update. If not, you can manually run the configuration:

sudo /usr/local/bin/noip2 -C

6. Start the No-IP Client
To start the client:
sudo /usr/local/bin/noip2

7. Verify Installation
To confirm that the No-IP DUC is running, use:
sudo /usr/local/bin/noip2 -S

8. Set Up No-IP DUC to Run on Boot
To make sure the client starts at boot, you can create a systemd service.
Create a service file:

sudo nano /etc/systemd/system/noip2.service

[Unit]
Description=No-IP Dynamic DNS Update Client
After=network.target

[Service]
Type=forking
ExecStart=/usr/local/bin/noip2
ExecStop=/usr/local/bin/noip2 -K

[Install]
WantedBy=multi-user.target

Save and close the file, then enable and start the service:
sudo systemctl enable noip2
sudo systemctl start noip2

9. Check Service Status
You can check the status of the service with:
sudo systemctl status noip2