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// Other services

Port 5994: RMS Agent Listening Service

Port 5994 is assigned by IANA to rms-agent (RMS Agent Listening Service).

5994

How rms-agent works

Other services
client:5994rms-agentresponse client:5994rms-agentresponse

The client sends a request to port 5994 and the rms-agent service answers.

Transport
TCP
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 5994 dangerous?

We have no specific security note for port 5994. 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 5994

ServicePortTransportDescriptionReferenceUpdated
rms-agent 5994 TCP RMS Agent Listening Service - 2021-03-24
-5994-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5994, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5994'      # process listening on 5994
sudo lsof -nP -i :5994

macOS

sudo lsof -nP -i :5994

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5994 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5994
netstat -ano | findstr :5994

From another machine

nmap -p 5994 -sV <host>
nc -zv <host> 5994

Block it in the firewall

sudo ufw deny 5994/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5994" -Direction Inbound -LocalPort 5994 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5994 used for?

Port 5994 is assigned by IANA to rms-agent (RMS Agent Listening Service).

Is port 5994 TCP or UDP?

Port 5994 is registered for TCP.

Is it safe to open port 5994?

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 5994 is open?

On Linux run "ss -ltnup 'sport = :5994'", on macOS "lsof -nP -i :5994", and on Windows "netstat -ano | findstr :5994" to see the local process. From another machine, "nmap -p 5994 <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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