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// Network services

Port 11108: Hardware Terminals Discovery and Low-Level Communication Protocol

Port 11108 is assigned by IANA to myq-termlink (Hardware Terminals Discovery and Low-Level Communication Protocol).

11108

How myq-termlink works

Network services
client:11108myq-termlinkresponse client:11108myq-termlinkresponse

The client sends a request to port 11108 and the myq-termlink service answers.

Transport
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
Network services
01 Security

Is port 11108 dangerous?

We have no specific security note for port 11108. Its risk depends on the program actually listening on it. General advice for network services services:

  • Answer only the networks that need the service (no open resolvers, relays or reflectors).
  • UDP services can be abused for DDoS amplification: rate-limit or block them at the edge.
  • Disable legacy test services that have no use in production.
02 Registry

IANA registry entries for port 11108

ServicePortTransportDescriptionReferenceUpdated
myq-termlink 11108 UDP Hardware Terminals Discovery and Low-Level Communication Protocol - 2013-04-23
-11108-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 11108, and is it reachable?

Linux

sudo ss -ltnup 'sport = :11108'      # process listening on 11108
sudo lsof -nP -i :11108

macOS

sudo lsof -nP -i :11108

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 11108 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 11108
netstat -ano | findstr :11108

From another machine

nmap -p 11108 -sV <host>
sudo nmap -sU -p 11108 <host>
nc -zv <host> 11108

Block it in the firewall

sudo ufw deny 11108/udp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 11108" -Direction Inbound -LocalPort 11108 -Protocol UDP -Action Block  # Windows
04 FAQ
What is port 11108 used for?

Port 11108 is assigned by IANA to myq-termlink (Hardware Terminals Discovery and Low-Level Communication Protocol).

Is port 11108 TCP or UDP?

Port 11108 is registered for UDP.

Is it safe to open port 11108?

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. Answer only the networks that need the service (no open resolvers, relays or reflectors).

How do I check if port 11108 is open?

On Linux run "ss -ltnup 'sport = :11108'", on macOS "lsof -nP -i :11108", and on Windows "netstat -ano | findstr :11108" to see the local process. From another machine, "nmap -p 11108 <host>" shows whether it is reachable.

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