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Knowledge base Opening ports in the firewall

Opening ports in the firewall

This guide explains how to add personalized ports in the firewall of a Web hosting or Cloud Server. Opening ports enables you to ensure certain applications work well but can reduce the security of your hosting.

On a shared Web hosting, it is only possible to open output ports
On a managed Cloud Server, it is possible to open input and output ports

Adding a port

open the Manager (manager.infomaniak.com)
go to Web Hosting or Cloud Server
click on the host or the server concerned
for a Cloud Server, choose the hosting concerned
in the left side panel, click on Advanced tools and then on Opening ports
click on Open a port
follow the instructions displayed on the screen

It is only possible to put a single IP or host per line and a single port per rule.

By indicating an IP or a host, the connection will only be authorized in these cases:

Input rule: if the connection comes from this IP or the indicated host
Output rule: if the connection is made towards this IP or host

The same applies for the "type" of connection: if the protocol used for the connection is not the one used in the rule, the connection is not authorized.

You will find a list of ports open by default in the same location.

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