Zónaátvitelt

Zónaátvitelt is a Hungarian term that translates to "zone transmission" or "zone transfer" in English. It refers to a specific type of DNS (Domain Name System) operation used for replicating DNS zone data between different DNS servers. DNS zones are hierarchical sections of the DNS namespace that are managed by a particular administrative authority. A zone transfer allows a secondary or slave DNS server to obtain a complete copy of a primary or master DNS server's zone file. This ensures that the secondary server can respond to DNS queries even if the primary server is unavailable, thereby improving the reliability and availability of DNS resolution. There are two main types of zone transfers: full zone transfers (AXFR) and incremental zone transfers (IXFR). AXFR transfers the entire zone file, while IXFR only transfers the changes that have occurred since the last transfer. Zone transfers are crucial for maintaining a distributed and resilient DNS infrastructure.