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// DevOps, cloud & containers

Port 9925: XYBRID Cloud

Port 9925 is assigned by IANA to xybrid-cloud (XYBRID Cloud).

9925

How xybrid-cloud works

DevOps, cloud & containers
adminhostxybrid-cloud adminhostxybrid-cloud

Commands sent to port 9925 create and control containers or cluster resources on the host.

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
DevOps, cloud & containers
01 Security

Is port 9925 dangerous?

We have no specific security note for port 9925. Its risk depends on the program actually listening on it. General advice for devops, cloud & containers services:

  • Container and orchestration APIs give full control of hosts: require mutual TLS and RBAC.
  • Never expose them to the Internet.
  • Rotate tokens and certificates and audit who has access.
02 Registry

IANA registry entries for port 9925

ServicePortTransportDescriptionReferenceUpdated
xybrid-cloud 9925 TCP XYBRID Cloud - 2013-04-25
-9925-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 9925, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9925'      # process listening on 9925
sudo lsof -nP -i :9925

macOS

sudo lsof -nP -i :9925

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9925 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9925
netstat -ano | findstr :9925

From another machine

nmap -p 9925 -sV <host>
nc -zv <host> 9925

Block it in the firewall

sudo ufw deny 9925/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9925" -Direction Inbound -LocalPort 9925 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9925 used for?

Port 9925 is assigned by IANA to xybrid-cloud (XYBRID Cloud).

Is port 9925 TCP or UDP?

Port 9925 is registered for TCP.

Is it safe to open port 9925?

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. Container and orchestration APIs give full control of hosts: require mutual TLS and RBAC.

How do I check if port 9925 is open?

On Linux run "ss -ltnup 'sport = :9925'", on macOS "lsof -nP -i :9925", and on Windows "netstat -ano | findstr :9925" to see the local process. From another machine, "nmap -p 9925 <host>" shows whether it is reachable.

05 Related
:2375 Docker API (HTTP) tcp · critical risk :2376 Docker API (TLS) tcp · high risk :6443 Kubernetes API tcp · udp · high risk :10250 Kubelet API tcp · critical risk :2379 etcd tcp · critical risk :8500 Consul tcp · udp · high risk :4505 SaltStack tcp · critical risk :9000 PHP-FPM / SonarQube / Portainer tcp · udp · high risk

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