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// DevOps, cloud & containers

Port 5992: Consul InSight Security

Port 5992 is assigned by IANA to consul-insight (Consul InSight Security).

5992

How consul-insight works

DevOps, cloud & containers
adminhostconsul-insight adminhostconsul-insight

Commands sent to port 5992 create and control containers or cluster resources on the host.

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
DevOps, cloud & containers
01 Security

Is port 5992 dangerous?

We have no specific security note for port 5992. 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 5992

ServicePortTransportDescriptionReferenceUpdated
consul-insight 5992 TCP, UDP Consul InSight Security - 2006-01

// source: IANA service name and port number registry

03 Check it

Which program uses port 5992, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5992'      # process listening on 5992
sudo lsof -nP -i :5992

macOS

sudo lsof -nP -i :5992

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5992 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5992
netstat -ano | findstr :5992

From another machine

nmap -p 5992 -sV <host>
sudo nmap -sU -p 5992 <host>
nc -zv <host> 5992

Block it in the firewall

sudo ufw deny 5992/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5992" -Direction Inbound -LocalPort 5992 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5992 used for?

Port 5992 is assigned by IANA to consul-insight (Consul InSight Security).

Is port 5992 TCP or UDP?

Port 5992 is registered for TCP and UDP.

Is it safe to open port 5992?

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 5992 is open?

On Linux run "ss -ltnup 'sport = :5992'", on macOS "lsof -nP -i :5992", and on Windows "netstat -ano | findstr :5992" to see the local process. From another machine, "nmap -p 5992 <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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