← Port Encyclopedia
9091
Transmission
TCP
File Transfer
Medium Risk
Transmission Web UI — BitTorrent client web interface
🔍 How to Scan Port 9091
nmap -sV -p 9091 target
nmap -sV -sC --script=banner -p 9091 target
nc -zv target 9091
🛡️ Security Considerations
- Scan port 9091 with
nmap -sVto identify the exact service and version - If Transmission is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit transmissionto find known exploits - Monitor traffic on port 9091 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation