// REFERENCE
Port 5353 (mDNS / Bonjour)
Protocol: UDP
Service: mDNS
Medium risk
mDNS (Bonjour/Avahi): LAN service discovery without a DNS server. It leaks host and service names, and exposed to the Internet it serves DDoS amplification. Local-network traffic.
Related tools
Work with this in:
Related
67
Port 67 (DHCP server) 68
Port 68 (DHCP client) 123
Port 123 (NTP) 161
Port 161 (SNMP) 162
Port 162 (SNMP Trap) 179
Port 179 (BGP)
Port 67 (DHCP server) 68
Port 68 (DHCP client) 123
Port 123 (NTP) 161
Port 161 (SNMP) 162
Port 162 (SNMP Trap) 179
Port 179 (BGP)
Assignments per the IANA port registry. Educational content.