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// DevOps, cloud & containers

Port 8404: SuperVault Cloud

Port 8404 is assigned by IANA to svcloud (SuperVault Cloud).

8404

How svcloud works

DevOps, cloud & containers
adminhostsvcloud adminhostsvcloud

Commands sent to port 8404 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 8404 dangerous?

We have no specific security note for port 8404. 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 8404

ServicePortTransportDescriptionReferenceUpdated
svcloud 8404 TCP SuperVault Cloud - 2011-08-01
-8404-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8404, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8404'      # process listening on 8404
sudo lsof -nP -i :8404

macOS

sudo lsof -nP -i :8404

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8404 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8404
netstat -ano | findstr :8404

From another machine

nmap -p 8404 -sV <host>
nc -zv <host> 8404

Block it in the firewall

sudo ufw deny 8404/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8404" -Direction Inbound -LocalPort 8404 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8404 used for?

Port 8404 is assigned by IANA to svcloud (SuperVault Cloud).

Is port 8404 TCP or UDP?

Port 8404 is registered for TCP.

Is it safe to open port 8404?

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 8404 is open?

On Linux run "ss -ltnup 'sport = :8404'", on macOS "lsof -nP -i :8404", and on Windows "netstat -ano | findstr :8404" to see the local process. From another machine, "nmap -p 8404 <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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