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// Other services

Port 3552: TeamAgenda Server Port

Port 3552 is assigned by IANA to taserver (TeamAgenda Server Port).

3552

How taserver works

Other services
client:3552taserverresponse client:3552taserverresponse

The client sends a request to port 3552 and the taserver 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 3552 dangerous?

We have no specific security note for port 3552. 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 3552

ServicePortTransportDescriptionReferenceUpdated
taserver 3552 TCP, UDP TeamAgenda Server Port - 2002-07

// source: IANA service name and port number registry

03 Check it

Which program uses port 3552, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3552'      # process listening on 3552
sudo lsof -nP -i :3552

macOS

sudo lsof -nP -i :3552

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3552 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3552
netstat -ano | findstr :3552

From another machine

nmap -p 3552 -sV <host>
sudo nmap -sU -p 3552 <host>
nc -zv <host> 3552

Block it in the firewall

sudo ufw deny 3552/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3552" -Direction Inbound -LocalPort 3552 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3552 used for?

Port 3552 is assigned by IANA to taserver (TeamAgenda Server Port).

Is port 3552 TCP or UDP?

Port 3552 is registered for TCP and UDP.

Is it safe to open port 3552?

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 3552 is open?

On Linux run "ss -ltnup 'sport = :3552'", on macOS "lsof -nP -i :3552", and on Windows "netstat -ano | findstr :3552" to see the local process. From another machine, "nmap -p 3552 <host>" shows whether it is reachable.

05 Related
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