Internet-Security.com TCP port 8107 details

Tableau Server: VizQL Server processes listen on TCP ports 8100–8107 by default; each VizQL instance takes one port, so 8107 is commonly used on Tableau Server nodes to handle interactive visualization queries.
In real deployments, administrators often see connections to host:8107 when multiple VizQL workers are running and the gateway/load balancer routes traffic to a specific VizQL process.
Tableau’s own documentation and installations confirm this default port range usage for VizQL Server.

TCP 8107