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// Other services

Port 619: Compaq EVM

Port 619 is assigned by IANA to compaq-evm (Compaq EVM).

619

How compaq-evm works

Other services
client:619compaq-evmresponse client:619compaq-evmresponse

The client sends a request to port 619 and the compaq-evm 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 619 dangerous?

We have no specific security note for port 619. 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 619

ServicePortTransportDescriptionReferenceUpdated
compaq-evm 619 TCP, UDP Compaq EVM - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 619, and is it reachable?

Linux

sudo ss -ltnup 'sport = :619'      # process listening on 619
sudo lsof -nP -i :619

macOS

sudo lsof -nP -i :619

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 619 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 619
netstat -ano | findstr :619

From another machine

nmap -p 619 -sV <host>
sudo nmap -sU -p 619 <host>
nc -zv <host> 619

Block it in the firewall

sudo ufw deny 619/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 619" -Direction Inbound -LocalPort 619 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 619 used for?

Port 619 is assigned by IANA to compaq-evm (Compaq EVM).

Is port 619 TCP or UDP?

Port 619 is registered for TCP and UDP.

Is it safe to open port 619?

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 619 is open?

On Linux run "ss -ltnup 'sport = :619'", on macOS "lsof -nP -i :619", and on Windows "netstat -ano | findstr :619" to see the local process. From another machine, "nmap -p 619 <host>" shows whether it is reachable.

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