CyberHunter
Local dataset, no network
// Other services

Port 3110: simulator control port

Port 3110 is assigned by IANA to sim-control (simulator control port).

3110

How sim-control works

Other services
client:3110sim-controlresponse client:3110sim-controlresponse

The client sends a request to port 3110 and the sim-control 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 3110 dangerous?

We have no specific security note for port 3110. 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 3110

ServicePortTransportDescriptionReferenceUpdated
sim-control 3110 TCP, UDP simulator control port - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3110, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3110'      # process listening on 3110
sudo lsof -nP -i :3110

macOS

sudo lsof -nP -i :3110

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3110 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3110
netstat -ano | findstr :3110

From another machine

nmap -p 3110 -sV <host>
sudo nmap -sU -p 3110 <host>
nc -zv <host> 3110

Block it in the firewall

sudo ufw deny 3110/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3110" -Direction Inbound -LocalPort 3110 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3110 used for?

Port 3110 is assigned by IANA to sim-control (simulator control port).

Is port 3110 TCP or UDP?

Port 3110 is registered for TCP and UDP.

Is it safe to open port 3110?

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 3110 is open?

On Linux run "ss -ltnup 'sport = :3110'", on macOS "lsof -nP -i :3110", and on Windows "netstat -ano | findstr :3110" to see the local process. From another machine, "nmap -p 3110 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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