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// Other services

Port 349: mftp

Port 349 is assigned by IANA to mftp (mftp).

349

How mftp works

Other services
client:349mftpresponse client:349mftpresponse

The client sends a request to port 349 and the mftp 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 349 dangerous?

We have no specific security note for port 349. 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 349

ServicePortTransportDescriptionReferenceUpdated
mftp 349 TCP, UDP mftp - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 349, and is it reachable?

Linux

sudo ss -ltnup 'sport = :349'      # process listening on 349
sudo lsof -nP -i :349

macOS

sudo lsof -nP -i :349

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 349 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 349
netstat -ano | findstr :349

From another machine

nmap -p 349 -sV <host>
sudo nmap -sU -p 349 <host>
nc -zv <host> 349

Block it in the firewall

sudo ufw deny 349/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 349" -Direction Inbound -LocalPort 349 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 349 used for?

Port 349 is assigned by IANA to mftp (mftp).

Is port 349 TCP or UDP?

Port 349 is registered for TCP and UDP.

Is it safe to open port 349?

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 349 is open?

On Linux run "ss -ltnup 'sport = :349'", on macOS "lsof -nP -i :349", and on Windows "netstat -ano | findstr :349" to see the local process. From another machine, "nmap -p 349 <host>" shows whether it is reachable.

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