[OpenWrt Wiki] DDNS client
openwrt.org › docs › guide-userJan 05, 2022 · The first step is to set up bind to allow updates to the A ( IPv4) and AAAA ( IPv6) records for openwrt.example.org. To do this, log onto your DNS server and run /usr/sbin/ddns-confgen -s openwrt.example.org. This will generate the key and shared secret that will be used to update DNS.