Software Defined Networking

Customisable private networking

SDN Private Networks offer unrestricted and secure private networking customisable by you. Create isolated environments within zones or allow traffic through a single firewalled router server.

Define custom local networks with the IP ranges of your choosing and attaching the static IPs manually or automatically using DHCP. Connect an unlimited number of cloud servers to any private network for no additional cost.

The predictable prices remain the same regardless of the number of connected cloud servers or the amount of transferred traffic

Secure networking by default

The UpCloud Utility network is the automatically configured account-wide secure connection between your Cloud Servers. This automatically configured network is our core features and remains free of charge and as useful as ever!

All of your Cloud Servers are connected to the Utility network by default but can be easily disconnected by detaching the network interface belonging to the Utility network. You can also omit the Utility network by deploying the server without the interface via tools like our API or Terraform.

UpCloud continues to be the only provider to join all your Cloud Servers with a global truly private network.

System and network security

The optional Layer 3 UpCloud Firewall is positioned just before the network interface connecting the Cloud Servers to the internet. The firewall rules are only applied to public network traffic, Utility and SDN private networks are excluded from it.

Isolate network environments utilizing the UpCloud Firewall. You can separate individual private networks by creating isolated environments within zones and only allowing traffic through a Cloud Server utilizing the Firewall and router.

Enabling service redundancy

Floating IPs are special IPv4 addresses that can be transferred from one Cloud Server to another at a moment’s notice without the need to restart the servers. They are extremely useful for failover services on mission-critical functions to ensure high availability.

The Floating IP can be transferred between any Cloud Servers within the same data center with minor prior configuration at the operating system level. Furthermore, automated failover between servers can be configure using our fully featured API.

Internet access to SDN Private Networks

NAT Gateway service allows Cloud Servers on SDN Private Networks to access the internet for 3rd party services or software upgrades.

Detaching direct inbound internet connectivity to Cloud Servers enhances your security perimeter and enables simpler network configuration.