CyberHunter
Local dataset, no network
// Other services

Port 1125: HP VMM Agent

Port 1125 is assigned by IANA to hpvmmagent (HP VMM Agent).

1125

How hpvmmagent works

Other services
client:1125hpvmmagentresponse client:1125hpvmmagentresponse

The client sends a request to port 1125 and the hpvmmagent 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 1125 dangerous?

We have no specific security note for port 1125. 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 1125

ServicePortTransportDescriptionReferenceUpdated
hpvmmagent 1125 TCP, UDP HP VMM Agent - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1125, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1125'      # process listening on 1125
sudo lsof -nP -i :1125

macOS

sudo lsof -nP -i :1125

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1125 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1125
netstat -ano | findstr :1125

From another machine

nmap -p 1125 -sV <host>
sudo nmap -sU -p 1125 <host>
nc -zv <host> 1125

Block it in the firewall

sudo ufw deny 1125/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1125" -Direction Inbound -LocalPort 1125 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1125 used for?

Port 1125 is assigned by IANA to hpvmmagent (HP VMM Agent).

Is port 1125 TCP or UDP?

Port 1125 is registered for TCP and UDP.

Is it safe to open port 1125?

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 1125 is open?

On Linux run "ss -ltnup 'sport = :1125'", on macOS "lsof -nP -i :1125", and on Windows "netstat -ano | findstr :1125" to see the local process. From another machine, "nmap -p 1125 <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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