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// Other services

Port 5310: Outlaws

Port 5310 is assigned by IANA to outlaws (Outlaws).

5310

How outlaws works

Other services
client:5310outlawsresponse client:5310outlawsresponse

The client sends a request to port 5310 and the outlaws 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 5310 dangerous?

We have no specific security note for port 5310. 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 5310

ServicePortTransportDescriptionReferenceUpdated
outlaws 5310 TCP, UDP Outlaws - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5310, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5310'      # process listening on 5310
sudo lsof -nP -i :5310

macOS

sudo lsof -nP -i :5310

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5310 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5310
netstat -ano | findstr :5310

From another machine

nmap -p 5310 -sV <host>
sudo nmap -sU -p 5310 <host>
nc -zv <host> 5310

Block it in the firewall

sudo ufw deny 5310/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5310" -Direction Inbound -LocalPort 5310 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5310 used for?

Port 5310 is assigned by IANA to outlaws (Outlaws).

Is port 5310 TCP or UDP?

Port 5310 is registered for TCP and UDP.

Is it safe to open port 5310?

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 5310 is open?

On Linux run "ss -ltnup 'sport = :5310'", on macOS "lsof -nP -i :5310", and on Windows "netstat -ano | findstr :5310" to see the local process. From another machine, "nmap -p 5310 <host>" shows whether it is reachable.

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