Port directory — page 8
Registry assignments, software defaults and local listeners are different things. A port number alone does not identify or secure a service.
Common Ports Overview
Efficient Short Remote Operations protocol port for short message transmission services
Common Software (2)
RemoteService
RemoteSystem
BGMP protocol port for Border Gateway Multicast Protocol
Common Software (2)
Protocol
System
Novastor Online Backup
Common Software (2)
NovastorBackupSoftware
BackupService
AppleShare IP file service port for Apple file sharing protocol
Common Software (2)
ServerManagementTool
macOSserverservice
H.323 call signaling port for audio-video communication protocol
Common Software (2)
MessageProtocolServer
MessageService
Rpc2portmap service port for remote procedure call port mapping
Common Software (2)
RPC2PortService
RemoteService
ClearCase Load Balancing
Common Software (2)
ClearCase
Service
Remote Network Connection protocol port for network device remote management
Common Software (2)
remotenetworkserversystem
networkservice
Unassigned protocol port for application-specific services
Common Software (2)
Monitoring
ManagementSystem
Direct Connect protocol port for peer-to-peer file transfer
Common Software (2)
Direct ConnectService
Network
Trap Convention port for system monitoring and alert services
Common Software (2)
Direct Connectclient
FileSharingApplication
Service Location Protocol port for network service discovery
Common Software (2)
ServiceProtocol
Service
Simple Network Paging Protocol port for paging and notification services
Common Software (2)
NetworkProtocol
System
Retrospect service port for file system backup and recovery
Common Software (2)
RetrospectBackupSoftware
Backup
Modbus TCP protocol port for industrial device communication
Common Software (1)
Modbus TCP industrial communication protocol port
Remote Execution protocol port for remote command execution services
Common Software (2)
Remote
Remote
Remote Login protocol port for remote login and authentication services
Common Software (2)
Remote
RemoteService
Line Printer Daemon port for network printing services
Common Software (2)
Printing
UnixPrintingSystemLPDProtocol
Routing Information Protocol port for routing table information exchange
RPC Remote Procedure Call port for distributed system communication
Common Software (2)
RemoteService
Courier RPCsystem
netnews protocol port for network news transmission and distribution
Common Software (2)
NetworkService
System
UUCP Unix-to-Unix Copy Protocol port for file transfer
Common Software (2)
UNIXUNIXProtocol
filetransfersystem
DHCPv6 client
Common Software (2)
DHCPv6 client
IPv6configurationservice
DHCPv6 client port for IPv6 dynamic host configuration
Common Software (2)
DHCPv6server
IPv6Configuration