CyberHunter
Local dataset, no network
// Other services

Port 124: ANSA REX Trader

Port 124 is assigned by IANA to ansatrader (ANSA REX Trader).

124

How ansatrader works

Other services
client:124ansatraderresponse client:124ansatraderresponse

The client sends a request to port 124 and the ansatrader 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 124 dangerous?

We have no specific security note for port 124. 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 124

ServicePortTransportDescriptionReferenceUpdated
ansatrader 124 TCP, UDP ANSA REX Trader - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 124, and is it reachable?

Linux

sudo ss -ltnup 'sport = :124'      # process listening on 124
sudo lsof -nP -i :124

macOS

sudo lsof -nP -i :124

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 124 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 124
netstat -ano | findstr :124

From another machine

nmap -p 124 -sV <host>
sudo nmap -sU -p 124 <host>
nc -zv <host> 124

Block it in the firewall

sudo ufw deny 124/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 124" -Direction Inbound -LocalPort 124 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 124 used for?

Port 124 is assigned by IANA to ansatrader (ANSA REX Trader).

Is port 124 TCP or UDP?

Port 124 is registered for TCP and UDP.

Is it safe to open port 124?

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 124 is open?

On Linux run "ss -ltnup 'sport = :124'", on macOS "lsof -nP -i :124", and on Windows "netstat -ano | findstr :124" to see the local process. From another machine, "nmap -p 124 <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