CyberHunter
Local dataset, no network
// Other services

Port 10990: Auxiliary RMI Port

Port 10990 is assigned by IANA to rmiaux (Auxiliary RMI Port).

10990

How rmiaux works

Other services
client:10990rmiauxresponse client:10990rmiauxresponse

The client sends a request to port 10990 and the rmiaux 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 10990 dangerous?

We have no specific security note for port 10990. 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 10990

ServicePortTransportDescriptionReferenceUpdated
rmiaux 10990 TCP, UDP Auxiliary RMI Port - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 10990, and is it reachable?

Linux

sudo ss -ltnup 'sport = :10990'      # process listening on 10990
sudo lsof -nP -i :10990

macOS

sudo lsof -nP -i :10990

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 10990 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 10990
netstat -ano | findstr :10990

From another machine

nmap -p 10990 -sV <host>
sudo nmap -sU -p 10990 <host>
nc -zv <host> 10990

Block it in the firewall

sudo ufw deny 10990/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 10990" -Direction Inbound -LocalPort 10990 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 10990 used for?

Port 10990 is assigned by IANA to rmiaux (Auxiliary RMI Port).

Is port 10990 TCP or UDP?

Port 10990 is registered for TCP and UDP.

Is it safe to open port 10990?

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 10990 is open?

On Linux run "ss -ltnup 'sport = :10990'", on macOS "lsof -nP -i :10990", and on Windows "netstat -ano | findstr :10990" to see the local process. From another machine, "nmap -p 10990 <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

Latest vulnerability news

All news