Zone Transfer Tcp
This process is called zone transfer.
Zone transfer tcp. I can see from the logicals that TCPIP defines that my router is sending the openvms domain name. The TCP protocol should not be used for queries as it. Usually a zone transfer is a normal operation between primary and secondary DNS servers in order to synchronise the records for a domain.
In the following example we use eth0 as the network interface. But when I try to do the zone transfer I get deniedREFUSED error messages. Requests a zone transfer AXFR from a DNS server.
The zone-transfer protocol isnt a modular file-transfer system. A zone transfer that is from an external IP address is used as part of an attackers reconnaissance phase. The domain to query is determined by examining the name given on the command line the DNS servers hostname or it can be specified with the dns-zone-transferdomain script argument.
The protocol has terrible compression and no security. So best practice is to restrict Zone transfers. 10132020 DNS uses TCP for Zone transfer and UDP for name and queries either regular primary or reverse.
Ive tried putting the allow-transfer option in the zone config and its still giving me the same error. In order to maintain a consistent DNS database between DNS Servers. If a client doesnt get response from DNS it must retransmit the data using TCP after 3-5 seconds of interval.
For the slaves to check for new data. The DNS uses TCP Port 53 for zone transfers for maintaining coherence between the DNS database and the server. Every new zone on the master requires manual reconfiguration of the slaves.
