CyberHunter
Local dataset, no network
// Other services

Port 8313: Hub Open Network

Port 8313 is assigned by IANA to hub-open-net (Hub Open Network).

8313

How hub-open-net works

Other services
client:8313hub-open-netresponse client:8313hub-open-netresponse

The client sends a request to port 8313 and the hub-open-net service answers.

Transport
TCP
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 8313 dangerous?

We have no specific security note for port 8313. 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 8313

ServicePortTransportDescriptionReferenceUpdated
hub-open-net 8313 TCP Hub Open Network - 2012-06-13
-8313-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8313, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8313'      # process listening on 8313
sudo lsof -nP -i :8313

macOS

sudo lsof -nP -i :8313

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8313 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8313
netstat -ano | findstr :8313

From another machine

nmap -p 8313 -sV <host>
nc -zv <host> 8313

Block it in the firewall

sudo ufw deny 8313/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8313" -Direction Inbound -LocalPort 8313 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8313 used for?

Port 8313 is assigned by IANA to hub-open-net (Hub Open Network).

Is port 8313 TCP or UDP?

Port 8313 is registered for TCP.

Is it safe to open port 8313?

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 8313 is open?

On Linux run "ss -ltnup 'sport = :8313'", on macOS "lsof -nP -i :8313", and on Windows "netstat -ano | findstr :8313" to see the local process. From another machine, "nmap -p 8313 <host>" shows whether it is reachable.

05 Related
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