9051
Tor Control Port
Medium RiskTCP — Security & VPN
Port Overview
Port Number
9051
Service Name
Tor Control Port
Transport Protocol
TCP
Category
Security & VPN
Security Risk
Medium
Port Range
Registered (1024-49151)
What is Port 9051?
Port 9051 is the Tor control port, which allows local applications to control and monitor the Tor daemon using the Tor Control Protocol. Tools like Vidalia, Arm, and nyx use this port to display Tor circuit information, configure settings, and manage the Tor process. This port is secured by a cookie or password and is only accessible locally.
TCP
Security & VPN
Security Considerations
Port 9051 (Tor Control Port) is classified as medium risk. While this service is commonly exposed, consider using encrypted alternatives where available.
Recommendation: Keep the service updated. Monitor logs for unusual activity.