DNS Trouble

RouterOS Scripting
1

Hi,

sometimes i’ve got some trouble with DNS …

For example: i can ping the DNS Server but port 53 was not responding …

My idea is, to write a script, that check’s if Server is pingable and when if server responds on requests on port 53.

I tried with netwach, but it’s only send pings

Some ideas ?

Chris

2

I just finished a script for DNS failover using ‘resolve’ function. Cannot access it actually, but this is what did:

  1. Define DNS servers to check
  2. Use do / on error construct to check if resolve delivers a result
  3. Use first DNS server with successful resolving as system DNS and as DNS server being distributed by DHCP

You can trigger script execution by netwatch and / or time.