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// Other services

Port 3235: MDAP port

Port 3235 is assigned by IANA to mdap-port (MDAP port).

3235

How mdap-port works

Other services
client:3235mdap-portresponse client:3235mdap-portresponse

The client sends a request to port 3235 and the mdap-port 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 3235 dangerous?

We have no specific security note for port 3235. 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 3235

ServicePortTransportDescriptionReferenceUpdated
mdap-port 3235 TCP, UDP MDAP port - 2002-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 3235, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3235'      # process listening on 3235
sudo lsof -nP -i :3235

macOS

sudo lsof -nP -i :3235

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3235 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3235
netstat -ano | findstr :3235

From another machine

nmap -p 3235 -sV <host>
sudo nmap -sU -p 3235 <host>
nc -zv <host> 3235

Block it in the firewall

sudo ufw deny 3235/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3235" -Direction Inbound -LocalPort 3235 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3235 used for?

Port 3235 is assigned by IANA to mdap-port (MDAP port).

Is port 3235 TCP or UDP?

Port 3235 is registered for TCP and UDP.

Is it safe to open port 3235?

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 3235 is open?

On Linux run "ss -ltnup 'sport = :3235'", on macOS "lsof -nP -i :3235", and on Windows "netstat -ano | findstr :3235" to see the local process. From another machine, "nmap -p 3235 <host>" shows whether it is reachable.

05 Related
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