Please make sure these IP addresses can connect to your Master or Hidden Master DNS Server for outgoing DNS Zone transfers (Notify), if KeyDNS is used as Slave Nameserver Set. Also, if KeyDNS is used as Master Nameserver set, please make sure our IP addresses can connect to your Slave DNS Server Set for incoming DNS Zone transfers (AXFR). I.e. respective firewall rules need to be set up.
DNS Zone Xfer Infrastructure
DNS Zone Xfer IN/OUT Nameserver Set (IPv4 / IPv6)
Three Xfer IN/OUT Nameservers are available, they are located in Europe.
| ns1-eu.key-systems.net | 37.187.251.136 / 2001:41d0:c:388:37:187:251:136 |
| ns2-eu.key-systems.net | 66.206.25.194 / 2604:4500:c:3:66:206:25:194 |
| ns3-eu.key-systems.net | 51.68.180.207 / 2001:41d0:700:1bcf:: |