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// Other services

Port 2106: MZAP

Port 2106 is assigned by IANA to mzap (MZAP).

2106

How mzap works

Other services
client:2106mzapresponse client:2106mzapresponse

The client sends a request to port 2106 and the mzap 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 2106 dangerous?

We have no specific security note for port 2106. 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 2106

ServicePortTransportDescriptionReferenceUpdated
mzap 2106 TCP, UDP MZAP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2106, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2106'      # process listening on 2106
sudo lsof -nP -i :2106

macOS

sudo lsof -nP -i :2106

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2106 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2106
netstat -ano | findstr :2106

From another machine

nmap -p 2106 -sV <host>
sudo nmap -sU -p 2106 <host>
nc -zv <host> 2106

Block it in the firewall

sudo ufw deny 2106/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2106" -Direction Inbound -LocalPort 2106 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2106 used for?

Port 2106 is assigned by IANA to mzap (MZAP).

Is port 2106 TCP or UDP?

Port 2106 is registered for TCP and UDP.

Is it safe to open port 2106?

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 2106 is open?

On Linux run "ss -ltnup 'sport = :2106'", on macOS "lsof -nP -i :2106", and on Windows "netstat -ano | findstr :2106" to see the local process. From another machine, "nmap -p 2106 <host>" shows whether it is reachable.

05 Related
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