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// Other services

Port 8600: Surveillance Data

Port 8600 is assigned by IANA to asterix (Surveillance Data).

8600

How asterix works

Other services
client:8600asterixresponse client:8600asterixresponse

The client sends a request to port 8600 and the asterix 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
Other services
01 Security

Is port 8600 dangerous?

We have no specific security note for port 8600. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 8600

ServicePortTransportDescriptionReferenceUpdated
asterix 8600 TCP, UDP Surveillance Data - 2005-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 8600, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8600'      # process listening on 8600
sudo lsof -nP -i :8600

macOS

sudo lsof -nP -i :8600

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8600 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8600
netstat -ano | findstr :8600

From another machine

nmap -p 8600 -sV <host>
sudo nmap -sU -p 8600 <host>
nc -zv <host> 8600

Block it in the firewall

sudo ufw deny 8600/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8600" -Direction Inbound -LocalPort 8600 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8600 used for?

Port 8600 is assigned by IANA to asterix (Surveillance Data).

Is port 8600 TCP or UDP?

Port 8600 is registered for TCP and UDP.

Is it safe to open port 8600?

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. Close the port if nothing on the host needs it.

How do I check if port 8600 is open?

On Linux run "ss -ltnup 'sport = :8600'", on macOS "lsof -nP -i :8600", and on Windows "netstat -ano | findstr :8600" to see the local process. From another machine, "nmap -p 8600 <host>" shows whether it is reachable.

05 Related
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