Update the IP address of your DNS records.
I built this because I have a Dynamic IP, so to keep my domains pointing to the correct IP I needed to update it from time to time.
This script will update your IP every 15 minutes to your current IP, via HTTP requests.
I use this script for 2 domain hosts. This is where to get the URLs to update the DNS record:
FreeDNS.afraid.org
Namecheap, HTTP request
This script to have running on an LXC or low consumption VM or similar just to keep your DNS records updated to you.
I for example just have a service on a debian LXC that runs the script on boot up.
Example of how this should look:
# Located at /etc/systemd/system/DnsIpUpdate.service
[Unit]
Description=Script to update my DNS IP records.
After=syslog.target
[Service]
ExecStart=/usr/bin/python3 /usr/bin/DnsIpUpdate.py
Environment=PYTHONUNBUFFERED=1
Restart=always
RestartSec=60
[Install]
WantedBy=multi-user.target