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Symantec vnetd
Symantec Network Utility vnetd, previously known as VERITAS NetBackup, is a dedicated communication service utilized in Symantec backup and recovery solutions. It facilitates remote management and data transfers between backup clients and servers, supporting backup operations across distributed enterprise environments..
Overview: Port 13724 is primarily associated with Symantec NetBackup’s vnetd service. This service acts as a multiplexing daemon that manages connections between client machines and backup servers, orchestrating backup jobs, restore processes, and catalog exchanges.
Functionality: vnetd assists in the negotiation and establishment of data connections, dynamically allocating additional ports necessary for transferring backup data. Because it supports both TCP and UDP protocols, it can negotiate session setup, heartbeat signaling, and data exchange efficiently across various environments and firewall configurations.
Integration: This port is integral when NetBackup components communicate across subnets or between media servers and master servers. The service helps in overcoming network address translation (NAT) and firewall complexities by serving as a centralized communication point. It supports encrypted channels if configured but by default is unencrypted.