CyberHunter
Local dataset, no network
// Other services

Port 2117: MENTACLIENT

Port 2117 is assigned by IANA to mentaclient (MENTACLIENT).

2117

How mentaclient works

Other services
client:2117mentaclientresponse client:2117mentaclientresponse

The client sends a request to port 2117 and the mentaclient 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 2117 dangerous?

We have no specific security note for port 2117. 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 2117

ServicePortTransportDescriptionReferenceUpdated
mentaclient 2117 TCP, UDP MENTACLIENT - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2117, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2117'      # process listening on 2117
sudo lsof -nP -i :2117

macOS

sudo lsof -nP -i :2117

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2117 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2117
netstat -ano | findstr :2117

From another machine

nmap -p 2117 -sV <host>
sudo nmap -sU -p 2117 <host>
nc -zv <host> 2117

Block it in the firewall

sudo ufw deny 2117/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2117" -Direction Inbound -LocalPort 2117 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2117 used for?

Port 2117 is assigned by IANA to mentaclient (MENTACLIENT).

Is port 2117 TCP or UDP?

Port 2117 is registered for TCP and UDP.

Is it safe to open port 2117?

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 2117 is open?

On Linux run "ss -ltnup 'sport = :2117'", on macOS "lsof -nP -i :2117", and on Windows "netstat -ano | findstr :2117" to see the local process. From another machine, "nmap -p 2117 <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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