Junior — Middle
On which network port does interaction with DNS servers occur?
sobes.tech AI
Answer from AI
Interaction with DNS servers is carried out on network port 53. This port is used for both UDP and TCP protocols:
- UDP port 53 — the primary protocol for DNS queries, as it is faster and suitable for most requests.
- TCP port 53 — used for zone transfers (AXFR), large responses, or when UDP is not suitable.
Thus, DNS servers listen on port 53 for incoming requests.