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// Other services

Port 1775: data interchange between visual processing containers

Port 1775 is assigned by IANA to vdab (data interchange between visual processing containers).

1775

How vdab works

Other services
client:1775vdabresponse client:1775vdabresponse

The client sends a request to port 1775 and the vdab service answers.

Transport
TCP
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 1775 dangerous?

We have no specific security note for port 1775. 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 1775

ServicePortTransportDescriptionReferenceUpdated
vdab 1775 TCP data interchange between visual processing containers - 2014-04-23
-1775-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 1775, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1775'      # process listening on 1775
sudo lsof -nP -i :1775

macOS

sudo lsof -nP -i :1775

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1775 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1775
netstat -ano | findstr :1775

From another machine

nmap -p 1775 -sV <host>
nc -zv <host> 1775

Block it in the firewall

sudo ufw deny 1775/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1775" -Direction Inbound -LocalPort 1775 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1775 used for?

Port 1775 is assigned by IANA to vdab (data interchange between visual processing containers).

Is port 1775 TCP or UDP?

Port 1775 is registered for TCP.

Is it safe to open port 1775?

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 1775 is open?

On Linux run "ss -ltnup 'sport = :1775'", on macOS "lsof -nP -i :1775", and on Windows "netstat -ano | findstr :1775" to see the local process. From another machine, "nmap -p 1775 <host>" shows whether it is reachable.

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