- Plesk for Linux
The following error messages appear in the
/var/log/named/general.log file on slave DNS server:
CONFIG_TEXT: slave1 named: zone example.com/IN: refresh: retry limit for master 22.214.171.124#53 exceeded (source 0.0.0.0#0)
slave1 named: zone domain.tld/IN: refresh: retry limit for master 126.96.36.199#53 exceeded (source 0.0.0.0#0)
UDP communication between slave and master server was interrupted.
Make sure the DNS server is running on another server.
Verify that there are no connectivity issues or firewall rules that can interrupt UDP communication between a slave and a master servers.