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// Other services

Port 1950: ISMA Easdaq Test

Port 1950 is assigned by IANA to ismaeasdaqtest (ISMA Easdaq Test).

1950

How ismaeasdaqtest works

Other services
client:1950ismaeasdaqtestresponse client:1950ismaeasdaqtestresponse

The client sends a request to port 1950 and the ismaeasdaqtest 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 1950 dangerous?

We have no specific security note for port 1950. 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 1950

ServicePortTransportDescriptionReferenceUpdated
ismaeasdaqtest 1950 TCP, UDP ISMA Easdaq Test - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1950, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1950'      # process listening on 1950
sudo lsof -nP -i :1950

macOS

sudo lsof -nP -i :1950

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1950 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1950
netstat -ano | findstr :1950

From another machine

nmap -p 1950 -sV <host>
sudo nmap -sU -p 1950 <host>
nc -zv <host> 1950

Block it in the firewall

sudo ufw deny 1950/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1950" -Direction Inbound -LocalPort 1950 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1950 used for?

Port 1950 is assigned by IANA to ismaeasdaqtest (ISMA Easdaq Test).

Is port 1950 TCP or UDP?

Port 1950 is registered for TCP and UDP.

Is it safe to open port 1950?

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 1950 is open?

On Linux run "ss -ltnup 'sport = :1950'", on macOS "lsof -nP -i :1950", and on Windows "netstat -ano | findstr :1950" to see the local process. From another machine, "nmap -p 1950 <host>" shows whether it is reachable.

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