CyberHunter
Local dataset, no network
// Other services

Port 2493: Talarian MQS

Port 2493 is assigned by IANA to talarian-mqs (Talarian MQS).

2493

How talarian-mqs works

Other services
client:2493talarian-mqsresponse client:2493talarian-mqsresponse

The client sends a request to port 2493 and the talarian-mqs 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 2493 dangerous?

We have no specific security note for port 2493. 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 2493

ServicePortTransportDescriptionReferenceUpdated
talarian-mqs 2493 TCP, UDP Talarian MQS - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2493, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2493'      # process listening on 2493
sudo lsof -nP -i :2493

macOS

sudo lsof -nP -i :2493

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2493 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2493
netstat -ano | findstr :2493

From another machine

nmap -p 2493 -sV <host>
sudo nmap -sU -p 2493 <host>
nc -zv <host> 2493

Block it in the firewall

sudo ufw deny 2493/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2493" -Direction Inbound -LocalPort 2493 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2493 used for?

Port 2493 is assigned by IANA to talarian-mqs (Talarian MQS).

Is port 2493 TCP or UDP?

Port 2493 is registered for TCP and UDP.

Is it safe to open port 2493?

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 2493 is open?

On Linux run "ss -ltnup 'sport = :2493'", on macOS "lsof -nP -i :2493", and on Windows "netstat -ano | findstr :2493" to see the local process. From another machine, "nmap -p 2493 <host>" shows whether it is reachable.

05 Related
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