// REFERENCE
Port 43 (WHOIS)
Protocol: TCP
Service: WHOIS
Low risk
WHOIS: queries registration data for domains and IPs (owner, dates, servers). A basic source of OSINT and recon in the early phases of a test.
Related tools
Work with this in:
Related
53
Port 53 (DNS) 88
Port 88 (Kerberos) 389
Port 389 (LDAP) 636
Port 636 (LDAPS) 853
Port 853 (DNS over TLS) 3268
Port 3268 (AD Global Catalog)
Port 53 (DNS) 88
Port 88 (Kerberos) 389
Port 389 (LDAP) 636
Port 636 (LDAPS) 853
Port 853 (DNS over TLS) 3268
Port 3268 (AD Global Catalog)
Assignments per the IANA port registry. Educational content.