I have some sort of DNS server running on my router (running Asuswrt-Merlin, and I can run commands from another Linux computer by host name, i.e.,
ping web-server. However, when I change settings on my router, it reboots, and then referring to servers by name fails (although connecting by IP works fine).
If I reboot the server (not the router), suddenly it works again, so presumably the server is sending some sort of command.
What command is this? I'd like to run it manually with cron or something.
If it matters, the server is running Ubuntu 13.10.