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NetBackup bpcd
Port 13782 is primarily used by Symantec NetBackup (formerly VERITAS) for the bpcd service, which handles client-server communication in enterprise backup environments. This port supports both TCP and UDP protocols and facilitates initial connection setup, command processing, and job management between the NetBackup master server, media servers, and clients..
Symantec NetBackup's bpcd daemon/service is fundamental within the NetBackup environment, handling initial communications between NetBackup clients and servers. It listens on port 13782 and manages authentication, authorization, and command execution. The port facilitates a variety of operations such as backup initiation, restore requests, policy updates, and status checks, acting as the control channel for data protection tasks.
bpcd uses a handshake process to authenticate and authorize connections, where the client process initially connects to the server's bpcd listener, exchanging credentials before any data transfer or administrative command is carried out. The communication is carried over both TCP and UDP, although control operations predominantly leverage TCP due to its reliability.
Given its design, bpcd serves as the entry point for most NetBackup operations on protected hosts. In complex deployment architectures, like those involving media servers or advanced client configurations, this port forms the backbone of orchestration by enabling command dispatch, policy dissemination, and environment discovery. Since it often runs a privileged service, its security posture is critical.