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// Network services

Port 7011: Talon Discovery Port

Port 7011 is assigned by IANA to talon-disc (Talon Discovery Port).

7011

How talon-disc works

Network services
client:7011talon-discresponse client:7011talon-discresponse

The client sends a request to port 7011 and the talon-disc service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
Category
Network services
01 Security

Is port 7011 dangerous?

We have no specific security note for port 7011. Its risk depends on the program actually listening on it. General advice for network services services:

  • Answer only the networks that need the service (no open resolvers, relays or reflectors).
  • UDP services can be abused for DDoS amplification: rate-limit or block them at the edge.
  • Disable legacy test services that have no use in production.
02 Registry

IANA registry entries for port 7011

ServicePortTransportDescriptionReferenceUpdated
talon-disc 7011 TCP, UDP Talon Discovery Port
Reported: Known Unauthorized Use on 7011
 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 7011, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7011'      # process listening on 7011
sudo lsof -nP -i :7011

macOS

sudo lsof -nP -i :7011

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7011 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7011
netstat -ano | findstr :7011

From another machine

nmap -p 7011 -sV <host>
sudo nmap -sU -p 7011 <host>
nc -zv <host> 7011

Block it in the firewall

sudo ufw deny 7011/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7011" -Direction Inbound -LocalPort 7011 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7011 used for?

Port 7011 is assigned by IANA to talon-disc (Talon Discovery Port).

Is port 7011 TCP or UDP?

Port 7011 is registered for TCP and UDP.

Is it safe to open port 7011?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Answer only the networks that need the service (no open resolvers, relays or reflectors).

How do I check if port 7011 is open?

On Linux run "ss -ltnup 'sport = :7011'", on macOS "lsof -nP -i :7011", and on Windows "netstat -ano | findstr :7011" to see the local process. From another machine, "nmap -p 7011 <host>" shows whether it is reachable.

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