Types of Firewall Rules
The cloud firewall provides different types of firewall rules. Currently, a distinction is made between static and dynamic rules.
Static Rules
Static rules allow you to specify source and destination networks explicitly. Additionally, the firewall rule can be restricted to a selected network interface and a specific network protocol.
Dynamic Rules
Dynamic rules allow you to configure group rules that, among other things, map various creoline services. We manage the dynamic rules, and they can be automatically expanded.
List of Dynamic Rule Groups
The most important types of dynamic rules are listed below.
| Group | Description |
|---|---|
| Cronjob Server | Allows incoming TCP connections on port 22 for our cronjob servers. |
| Monitoring Service | Allows incoming TCP connections on port 10050 for our monitoring servers. |
| Plesk Single Sign-On | Allows incoming TCP connections on port 8443 for incoming Plesk SSO requests. |
| creoline Support | Allows incoming TCP and UDP connections from our support team. |
| Ping (IPv4 & IPv6) | Enables the ICMP protocol for IPv4 and IPv6 |
| Email Protection (Inbound SMTP) | Enables incoming TCP connections from the creoline Mail Protection servers on port 25 |
| Email Protection (Inbound Proxy) | Allows incoming TCP connections from the creoline Mail Protection servers pop.creoline.com, imap.creoline.com, and smtp.creoline.com on ports 110, 143, and 25 |
| Cloudflare IPv4 (TCP and UDP) | Allows incoming TCP and UDP connections from Cloudflare. The allowed IP addresses are dynamically updated via the endpoint provided by Cloudflare: https://www.cloudflare.com/ips-v4. |
| Cloudflare IPv6 (TCP and UDP) | Allows incoming TCP and UDP connections from Cloudflare. The allowed IP addresses are dynamically updated via the endpoint provided by Cloudflare: https://www.cloudflare.com/ips-v6. |
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