Valid for Linux VPS, Windows VPS, migrated Cloud Servers, and VPS+.

You can change a firewall policy at any time. To change a firewall policy, follow the steps below:

  • Log in to your IONOS account.
  • Click Menu > Servers & Cloud in the title bar. If you have multiple contracts, select the desired Servers & Cloud contract.

  • In the Network > Firewall Policies section, select the desired firewall policy.

The Firewall Policies section of the Cloud Panel.
The Firewall Policies section of the Cloud Panel.
  • In the Configuration section, you can customize the incoming firewall rules.

The Configuration section of the Firewall Policies.
The Configuration section of the Firewall Policies.

To manually adjust a firewall rule, click the pencil icon to the right of the rule you want to modify. Then, edit the configuration:


Custom Firewall Rule

Allowed IP: Enter the desired IP address for which access should be allowed.

Protocol: Select the desired protocol.

Port(s): Enter the desired port. Alternatively, you can enter a port range or multiple ports. To create a rule for a port range, enter the lower and upper range values. Separate these values with a hyphen. Example: 4000-5000.

Description: Enter a description for the firewall rule.


Predefined Firewall Rule

To add a predefined firewall rule, click Insert Default Values. Then, select the rule you want and manually adjust it if necessary.

Some of the available rules are listed below:

Block all ports: Blocks all incoming ports from the server.

Open all ports: Opens all incoming ports of the server.

HTTP: Opens port 80 for incoming requests.

  • To save the change, click the checkmark icon to the right of the rule you want to modify (with the tooltip "Add rule").
    To remove a firewall rule, click the minus icon to the right of the rule you want to modify (with the tooltip "Remove rule").
    To add a new firewall rule, enter the desired values ​​in the last row of the table.
    To save the firewall rule, click the checkmark icon to the right of the new rule (with the tooltip "Add rule").
    To cancel the addition of new firewall rules, click the "x" icon to the right of the rule (with the tooltip "Cancel").

Your changes to the firewall policy are being applied. This process may take a moment.