Updating no-ip ddns on
DDWRT Router:
with the help of inadyn tool
https://github.com/torglobit/inadyn
Linux box:
With the help of noip-udc-linux
http://www.no-ip.com/client/linux
Failed Issus:
No direct internet link
DNS resolve too slow
inadyn: timeout=IP_DEFAULT_TIMEOUT=20s
noip-udc: using gethostbyname linux api to get IP address, the timeout can be defined in /etc/resolv.conf, the default value in linux is 5 ms,
Example of resolv.conf:
nameserver 8.8.8.8 options timeout:30