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// Other services

Port 2993: VERITAS VIS1

Port 2993 is assigned by IANA to veritas-vis1 (VERITAS VIS1).

2993

How veritas-vis1 works

Other services
client:2993veritas-vis1response client:2993veritas-vis1response

The client sends a request to port 2993 and the veritas-vis1 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 2993 dangerous?

We have no specific security note for port 2993. 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 2993

ServicePortTransportDescriptionReferenceUpdated
veritas-vis1 2993 TCP, UDP VERITAS VIS1 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2993, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2993'      # process listening on 2993
sudo lsof -nP -i :2993

macOS

sudo lsof -nP -i :2993

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2993 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2993
netstat -ano | findstr :2993

From another machine

nmap -p 2993 -sV <host>
sudo nmap -sU -p 2993 <host>
nc -zv <host> 2993

Block it in the firewall

sudo ufw deny 2993/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2993" -Direction Inbound -LocalPort 2993 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2993 used for?

Port 2993 is assigned by IANA to veritas-vis1 (VERITAS VIS1).

Is port 2993 TCP or UDP?

Port 2993 is registered for TCP and UDP.

Is it safe to open port 2993?

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 2993 is open?

On Linux run "ss -ltnup 'sport = :2993'", on macOS "lsof -nP -i :2993", and on Windows "netstat -ano | findstr :2993" to see the local process. From another machine, "nmap -p 2993 <host>" shows whether it is reachable.

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