Firewall Management on Servers with the Cloud Plan

Firewall for a server is a software or hardware tool that provides protection for the network and servers against unauthorized access, attacks, and malicious traffic. It controls incoming and outbound network flows by applying security rules to allow or block traffic based on defined criteria such as IP addresses, ports, or protocols. A firewall is critical for protecting servers from cyber threats and maintaining data integrity and confidentiality.

For servers in the Cloud pricing plan, the option to enable a Firewall via the service control panel is available. To create and apply a security rule on the server, you need to navigate to the "Firewall" section.

In the “Add Firewall” window, enter a name for the new firewall

Creating at least one firewall rule sets an implicit rule: blocking all unauthorized connections (DROP ALL)

Help

- When adding a rule, the system checks the validity of the IP address, subnet mask, and port.
- Any changes take effect immediately after saving.
- Network type — IPv4 or IPv6.
- Protocol — any, tcp, icmp, upd.
- Address — the source of the traffic (you can specify an IP address with a /32 mask, a subnet in CIDR format, or leave it blank).
- Port range — active for the specified protocols: TCP, ICMP, UDP.