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// Other services

Port 1290: WinJaServer

Port 1290 is assigned by IANA to winjaserver (WinJaServer).

1290

How winjaserver works

Other services
client:1290winjaserverresponse client:1290winjaserverresponse

The client sends a request to port 1290 and the winjaserver 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 1290 dangerous?

We have no specific security note for port 1290. 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 1290

ServicePortTransportDescriptionReferenceUpdated
winjaserver 1290 TCP, UDP WinJaServer - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1290, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1290'      # process listening on 1290
sudo lsof -nP -i :1290

macOS

sudo lsof -nP -i :1290

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1290 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1290
netstat -ano | findstr :1290

From another machine

nmap -p 1290 -sV <host>
sudo nmap -sU -p 1290 <host>
nc -zv <host> 1290

Block it in the firewall

sudo ufw deny 1290/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1290" -Direction Inbound -LocalPort 1290 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1290 used for?

Port 1290 is assigned by IANA to winjaserver (WinJaServer).

Is port 1290 TCP or UDP?

Port 1290 is registered for TCP and UDP.

Is it safe to open port 1290?

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 1290 is open?

On Linux run "ss -ltnup 'sport = :1290'", on macOS "lsof -nP -i :1290", and on Windows "netstat -ano | findstr :1290" to see the local process. From another machine, "nmap -p 1290 <host>" shows whether it is reachable.

05 Related
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