DuckDNS shell script for Asus Merlin Routers

DuckDNS shell script for Asus Merlin Routers

Tested on an ASUS RT-AC56U running Merlin firmware 378.55

duck.sh

#!/bin/sh

### location: anywhere, preferably outside the jffs partition on an external flash drive
### because the jffs partition ROM has a limited number of writes.
### ensure this file has execute permissions

# the name of your sub-domain on duckdns.org
DOMAIN=
# your private token
TOKEN=

touch /tmp/000duckdnsstarted
echo url="https://www.duckdns.org/update?domains=${DOMAIN}&token=${TOKEN}&ip=" | curl -k -o

wan-start

#!/bin/sh

### location: /jffs/scripts/
### ensure this file has execute permissions

# path to bash script to talk to DuckDNS servers
REFRESH_SCRIPT=/mnt/OPTWARE/duckdns/duck.sh

# add duckdns refresh to crontab
cru a duckdns "5 * * * * ${REFRESH_SCRIPT} >/dev/null 2>&1"