DDNS Cloudflare

Setup

• Change the asset variable according to your target platform (see GitHub Releases)
• Change the bin variable if you wish to use a different destination
• Download the app
• Edit the configuration (you can find an example below)
• Configure a cron job

Unix-like (bash)

• Depending on the selected destination you may have to become root: sudo -i

asset="linux-aarch64-ddns_cloudflare"; bin="/usr/local/sbin/ddns-cloudflare"; curl -Lso "${bin}.new" "https://github.com/masterflitzer/ddns-cloudflare/releases/latest/download/${asset}" && mv "${bin}.new" "${bin}" && chmod 0754 "${bin}"

vim $(ddns-cloudflare --configuration)
vim /etc/cron.d/ddns-cloudflare

Windows (pwsh)

$asset = "windows-x86_64-ddns_cloudflare.exe"; $bin = "$env:localappdata/programs/ddns-cloudflare/ddns-cloudflare.exe"; curl -Lso "${bin}.new" "https://github.com/masterflitzer/ddns-cloudflare/releases/latest/download/${asset}" && mv -force "${bin}.new" "${bin}"

• Use Task Scheduler as an replacement for cron on Windows

Configuration

• Print location of configuration file: ddns-cloudflare --configuration

# https://github.com/masterflitzer/ddns-cloudflare#readme

api_token = ""

[ipv6]
# Prefer EUI-64 IPv6 address if available (has highest priority if true)
prefer_eui64 = false
# Prefer the IPv6 address that is used for outgoing connections (allows DDNS with privacy extensions)
prefer_outgoing = false

[records]
"example.com" = ["@", "www"]
"example.org" = ["wiki"]

Crontab

@reboot root /usr/local/sbin/ddns-cloudflare > /var/log/ddns-cloudflare.log 2>&1
@hourly root /usr/local/sbin/ddns-cloudflare > /var/log/ddns-cloudflare.log 2>&1