CyberHunter
Local dataset, no network
// Other services

Port 5054: RLM administrative interface

Port 5054 is assigned by IANA to rlm-admin (RLM administrative interface).

5054

How rlm-admin works

Other services
client:5054rlm-adminresponse client:5054rlm-adminresponse

The client sends a request to port 5054 and the rlm-admin 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 5054 dangerous?

We have no specific security note for port 5054. 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 5054

ServicePortTransportDescriptionReferenceUpdated
rlm-admin 5054 TCP RLM administrative interface - 2008-07-28
-5054-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5054, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5054'      # process listening on 5054
sudo lsof -nP -i :5054

macOS

sudo lsof -nP -i :5054

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5054 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5054
netstat -ano | findstr :5054

From another machine

nmap -p 5054 -sV <host>
nc -zv <host> 5054

Block it in the firewall

sudo ufw deny 5054/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5054" -Direction Inbound -LocalPort 5054 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5054 used for?

Port 5054 is assigned by IANA to rlm-admin (RLM administrative interface).

Is port 5054 TCP or UDP?

Port 5054 is registered for TCP.

Is it safe to open port 5054?

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 5054 is open?

On Linux run "ss -ltnup 'sport = :5054'", on macOS "lsof -nP -i :5054", and on Windows "netstat -ano | findstr :5054" to see the local process. From another machine, "nmap -p 5054 <host>" shows whether it is reachable.

05 Related
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