I’d like to do a dynamic DNS update using tsig )see Using nsupdate for dynamic DNS TSIG Updates)
While I found how to set
ddns.myddns_ipv4.update_script=…
I had to hard code the interface in the script.
I’d rather pass the interface to update as anargumen, as such
# /usr/bin/nsupdate-home-router.pcfe.net-tsig eth1
how do I do that?