// REFERENCE
Port 123 (NTP)
Protocol: UDP
Service: NTP
Medium risk
NTP: synchronizes device clocks, critical for TLS, Kerberos and log correlation. Misconfigured NTP servers have fueled large amplification attacks (the monlist command).
Related tools
Work with this in:
Related
67
Port 67 (DHCP server) 68
Port 68 (DHCP client) 161
Port 161 (SNMP) 162
Port 162 (SNMP Trap) 179
Port 179 (BGP) 514
Port 514 (Syslog)
Port 67 (DHCP server) 68
Port 68 (DHCP client) 161
Port 161 (SNMP) 162
Port 162 (SNMP Trap) 179
Port 179 (BGP) 514
Port 514 (Syslog)
Assignments per the IANA port registry. Educational content.