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// Other services

Port 8300: Transport Management Interface

Port 8300 is assigned by IANA to tmi (Transport Management Interface).

8300

How tmi works

Other services
client:8300tmiresponse client:8300tmiresponse

The client sends a request to port 8300 and the tmi 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 8300 dangerous?

We have no specific security note for port 8300. 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 8300

ServicePortTransportDescriptionReferenceUpdated
tmi 8300 TCP, UDP Transport Management Interface - 2006-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 8300, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8300'      # process listening on 8300
sudo lsof -nP -i :8300

macOS

sudo lsof -nP -i :8300

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8300 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8300
netstat -ano | findstr :8300

From another machine

nmap -p 8300 -sV <host>
sudo nmap -sU -p 8300 <host>
nc -zv <host> 8300

Block it in the firewall

sudo ufw deny 8300/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8300" -Direction Inbound -LocalPort 8300 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8300 used for?

Port 8300 is assigned by IANA to tmi (Transport Management Interface).

Is port 8300 TCP or UDP?

Port 8300 is registered for TCP and UDP.

Is it safe to open port 8300?

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 8300 is open?

On Linux run "ss -ltnup 'sport = :8300'", on macOS "lsof -nP -i :8300", and on Windows "netstat -ano | findstr :8300" to see the local process. From another machine, "nmap -p 8300 <host>" shows whether it is reachable.

05 Related
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