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Local dataset, no network
// Other services

Port 37654: Unisys ClearPath ePortal

Port 37654 is assigned by IANA to unisys-eportal (Unisys ClearPath ePortal).

37654

How unisys-eportal works

Other services
client:37654unisys-eportalresponse client:37654unisys-eportalresponse

The client sends a request to port 37654 and the unisys-eportal 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 37654 dangerous?

We have no specific security note for port 37654. 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 37654

ServicePortTransportDescriptionReferenceUpdated
unisys-eportal 37654 TCP, UDP Unisys ClearPath ePortal - 2006-01

// source: IANA service name and port number registry

03 Check it

Which program uses port 37654, and is it reachable?

Linux

sudo ss -ltnup 'sport = :37654'      # process listening on 37654
sudo lsof -nP -i :37654

macOS

sudo lsof -nP -i :37654

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 37654 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 37654
netstat -ano | findstr :37654

From another machine

nmap -p 37654 -sV <host>
sudo nmap -sU -p 37654 <host>
nc -zv <host> 37654

Block it in the firewall

sudo ufw deny 37654/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 37654" -Direction Inbound -LocalPort 37654 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 37654 used for?

Port 37654 is assigned by IANA to unisys-eportal (Unisys ClearPath ePortal).

Is port 37654 TCP or UDP?

Port 37654 is registered for TCP and UDP.

Is it safe to open port 37654?

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 37654 is open?

On Linux run "ss -ltnup 'sport = :37654'", on macOS "lsof -nP -i :37654", and on Windows "netstat -ano | findstr :37654" to see the local process. From another machine, "nmap -p 37654 <host>" shows whether it is reachable.

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