CyberHunter
Local dataset, no network
// Other services

Port 1383: GW Hannaway Network License Manager

Port 1383 is assigned by IANA to gwha (GW Hannaway Network License Manager).

1383

How gwha works

Other services
client:1383gwharesponse client:1383gwharesponse

The client sends a request to port 1383 and the gwha 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 1383 dangerous?

We have no specific security note for port 1383. 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 1383

ServicePortTransportDescriptionReferenceUpdated
gwha 1383 TCP, UDP GW Hannaway Network License Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1383, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1383'      # process listening on 1383
sudo lsof -nP -i :1383

macOS

sudo lsof -nP -i :1383

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1383 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1383
netstat -ano | findstr :1383

From another machine

nmap -p 1383 -sV <host>
sudo nmap -sU -p 1383 <host>
nc -zv <host> 1383

Block it in the firewall

sudo ufw deny 1383/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1383" -Direction Inbound -LocalPort 1383 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1383 used for?

Port 1383 is assigned by IANA to gwha (GW Hannaway Network License Manager).

Is port 1383 TCP or UDP?

Port 1383 is registered for TCP and UDP.

Is it safe to open port 1383?

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 1383 is open?

On Linux run "ss -ltnup 'sport = :1383'", on macOS "lsof -nP -i :1383", and on Windows "netstat -ano | findstr :1383" to see the local process. From another machine, "nmap -p 1383 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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