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// Other services

Port 2650: eristwoguns

Port 2650 is assigned by IANA to eristwoguns (eristwoguns).

2650

How eristwoguns works

Other services
client:2650eristwogunsresponse client:2650eristwogunsresponse

The client sends a request to port 2650 and the eristwoguns 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 2650 dangerous?

We have no specific security note for port 2650. 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 2650

ServicePortTransportDescriptionReferenceUpdated
eristwoguns 2650 TCP, UDP eristwoguns - 2008-12-16

// source: IANA service name and port number registry

03 Check it

Which program uses port 2650, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2650'      # process listening on 2650
sudo lsof -nP -i :2650

macOS

sudo lsof -nP -i :2650

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2650 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2650
netstat -ano | findstr :2650

From another machine

nmap -p 2650 -sV <host>
sudo nmap -sU -p 2650 <host>
nc -zv <host> 2650

Block it in the firewall

sudo ufw deny 2650/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2650" -Direction Inbound -LocalPort 2650 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2650 used for?

Port 2650 is assigned by IANA to eristwoguns (eristwoguns).

Is port 2650 TCP or UDP?

Port 2650 is registered for TCP and UDP.

Is it safe to open port 2650?

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 2650 is open?

On Linux run "ss -ltnup 'sport = :2650'", on macOS "lsof -nP -i :2650", and on Windows "netstat -ano | findstr :2650" to see the local process. From another machine, "nmap -p 2650 <host>" shows whether it is reachable.

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