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// Other services

Port 1730: roketz

Port 1730 is assigned by IANA to roketz (roketz).

1730

How roketz works

Other services
client:1730roketzresponse client:1730roketzresponse

The client sends a request to port 1730 and the roketz 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 1730 dangerous?

We have no specific security note for port 1730. 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 1730

ServicePortTransportDescriptionReferenceUpdated
roketz 1730 TCP, UDP roketz - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1730, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1730'      # process listening on 1730
sudo lsof -nP -i :1730

macOS

sudo lsof -nP -i :1730

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1730 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1730
netstat -ano | findstr :1730

From another machine

nmap -p 1730 -sV <host>
sudo nmap -sU -p 1730 <host>
nc -zv <host> 1730

Block it in the firewall

sudo ufw deny 1730/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1730" -Direction Inbound -LocalPort 1730 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1730 used for?

Port 1730 is assigned by IANA to roketz (roketz).

Is port 1730 TCP or UDP?

Port 1730 is registered for TCP and UDP.

Is it safe to open port 1730?

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 1730 is open?

On Linux run "ss -ltnup 'sport = :1730'", on macOS "lsof -nP -i :1730", and on Windows "netstat -ano | findstr :1730" to see the local process. From another machine, "nmap -p 1730 <host>" shows whether it is reachable.

05 Related
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