open ports on greenbone

Getting Started
1

Hello, can anyone tell me which ports need to be open for Greenbone? I’ve found this so far:
Web-Interface (GSA) → 443 TCP
GMP API (optional) → 9390 TCP
OpenVAS Scanner intern → 9391 TCP
Feed-Update (NVTs etc.) → 873 TCP

Is there anything missing or even something wrong? I hope someone can quickly tell me the correct ports.

2

It might be necessary to know the intended use and how the installation was done. This is a rather creative mix-up of inbound and outbound ports. If the installation is on Kali, you need access to the interface, and the NVT update requires the rsync port to be open towards the update server

In short: inbound to GSA webinterface port (by default port is not 443). Outbound rsync to update server and of course dns is needed.

Eero

1 Like
3

I installed the greenbone community edition on an Ubuntu server as follows: Building from Source - Greenbone Community Documentation

4

In practice, in this case you need access to the GSAD (web GUI) via the TCP port. In addition, DNS must be functioning. Access to the rsync update server is also required. SSH is useful for maintenance purposes. Furthermore, the machine must have all TCP/UDP ports open to the hosts being scanned.

This is only a guideline, assuming that all services are running on a single machine

Eero

5

Thanks for the quick help, is there perhaps a list of all the required ports somewhere?

6

@Error

Firewall requirements may vary depending on whether you’re using something like Docker or if components are distributed across multiple virtual machines. I don’t know if there’s a list available; check the documentation.

By default, most services listen only on localhost.

I don’t quite understand what you’re aiming at with your question. Didn’t I already explain the matter quite clearly?

Eero

7

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