CyberHunter
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// Other services

Port 4659: PlayStation2 Lobby Port

Port 4659 is assigned by IANA to playsta2-lob (PlayStation2 Lobby Port).

4659

How playsta2-lob works

Other services
client:4659playsta2-lobresponse client:4659playsta2-lobresponse

The client sends a request to port 4659 and the playsta2-lob 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 4659 dangerous?

We have no specific security note for port 4659. 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 4659

ServicePortTransportDescriptionReferenceUpdated
playsta2-lob 4659 TCP, UDP PlayStation2 Lobby Port - 2004-12

// source: IANA service name and port number registry

03 Check it

Which program uses port 4659, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4659'      # process listening on 4659
sudo lsof -nP -i :4659

macOS

sudo lsof -nP -i :4659

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4659 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4659
netstat -ano | findstr :4659

From another machine

nmap -p 4659 -sV <host>
sudo nmap -sU -p 4659 <host>
nc -zv <host> 4659

Block it in the firewall

sudo ufw deny 4659/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4659" -Direction Inbound -LocalPort 4659 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4659 used for?

Port 4659 is assigned by IANA to playsta2-lob (PlayStation2 Lobby Port).

Is port 4659 TCP or UDP?

Port 4659 is registered for TCP and UDP.

Is it safe to open port 4659?

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 4659 is open?

On Linux run "ss -ltnup 'sport = :4659'", on macOS "lsof -nP -i :4659", and on Windows "netstat -ano | findstr :4659" to see the local process. From another machine, "nmap -p 4659 <host>" shows whether it is reachable.

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