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// Other services

Port 6868: Acctopus Command Channel

Port 6868 is assigned by IANA to acctopus-cc (Acctopus Command Channel), acctopus-st (Acctopus Status).

6868

How acctopus-cc works

Other services
client:6868acctopus-ccresponse client:6868acctopus-ccresponse

The client sends a request to port 6868 and the acctopus-cc service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 6868 dangerous?

We have no specific security note for port 6868. 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 6868

ServicePortTransportDescriptionReferenceUpdated
acctopus-cc 6868 TCP Acctopus Command Channel - 2009-11-16
acctopus-st 6868 UDP Acctopus Status - 2009-11-16

// source: IANA service name and port number registry

03 Check it

Which program uses port 6868, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6868'      # process listening on 6868
sudo lsof -nP -i :6868

macOS

sudo lsof -nP -i :6868

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6868 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6868
netstat -ano | findstr :6868

From another machine

nmap -p 6868 -sV <host>
sudo nmap -sU -p 6868 <host>
nc -zv <host> 6868

Block it in the firewall

sudo ufw deny 6868/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6868" -Direction Inbound -LocalPort 6868 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6868 used for?

Port 6868 is assigned by IANA to acctopus-cc (Acctopus Command Channel), acctopus-st (Acctopus Status).

Is port 6868 TCP or UDP?

Port 6868 is registered for TCP and UDP.

Is it safe to open port 6868?

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 6868 is open?

On Linux run "ss -ltnup 'sport = :6868'", on macOS "lsof -nP -i :6868", and on Windows "netstat -ano | findstr :6868" to see the local process. From another machine, "nmap -p 6868 <host>" shows whether it is reachable.

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