In addition, you gain improved security posture with identity-based permissions and a centralized, audited, and time-bound SSH session. Infrastructure Bastion service, you can enable access to private hosts without deploying and maintaining a jump host. Kubernetes (OKE), and any other resource that allows Secure Shell Protocol (SSH) access. Processing (ATP), Oracle Container Engine for Infrastructure Bastion provides restricted and time-limited secure access to resources that don't have public endpoints and that require strict resource access controls, such as bare metal and virtual machines, Oracle MySQL Database Service, Autonomous Transaction Network address translation (NAT) gatewayĪ NAT gateway enables private resources in a VCN to access hosts on the internet, without exposing those resources to incoming internet connections.The internet gateway allows traffic between the public subnets in a VCN and the public internet. This architecture shows an optional Dynamic Routing Gateway (DRG) for a Infrastructure region, an on-premises network, or a network in another cloud provider. The DRG is a virtual router that provides a path for private network traffic between a VCN and a network outside the region, such as a VCN in another Oracle Cloud FastConnect provides higher-bandwidth options and a more reliable networking experience when compared with internet-based connections. Infrastructure FastConnect provides an easy way to create a dedicated, private connection between your data center and Oracle Cloud The IPSec protocol suite encrypts IP traffic before the packets are transferred from the source to the destination and decrypts the traffic when it arrives. Site-to-Site VPN provides IPSec VPN connectivity between your on-premises network and VCNs in Oracle Cloud The three Compute instances running PostgreSQL. This architecture uses one public subnet to host You can change the size of a subnet after creation. Each subnet consists of a contiguous range of addresses that don't overlap with the other subnets in the VCN. You can segment a VCN into subnets, which can be scoped to a region or to an availability domain. A VCN can have multiple non-overlapping CIDR blocks that you can change after you create the VCN. Like traditional data center networks, VCNs give you complete control over your network environment.
Virtual cloud network (VCN) and subnetsĪ VCN is a customizable, software-defined network that you set up in an Oracle Cloud.When you distribute resources across multiple fault domains, your applications can tolerate physical server failure, system maintenance, and power failures inside a fault domain. Each availability domain has three fault domains with independent power and hardware. So, a failure at one availability domain is unlikely to affect the other availability domains in the region.Ī fault domain is a grouping of hardware and infrastructure within an availability domain. Availability domains don’t share infrastructure such as power or cooling, or the internal availability domain network. The physical resources in each availability domain are isolated from the resources in the other availability domains, which provides fault tolerance. Regions are independent of other regions, and vast distances can separate them (across countries or even continents).Īvailability domains are standalone, independent data centers within a region. Infrastructure region is a localized geographic area that contains one or more data centers, called availability domains. The architecture has the following components: The following diagram illustrates this reference architecture.ĭescription of the illustration postgre-oci.png In this architecture, the servers are configured in master and standbyĬonfiguration and use streaming replication with file-based log PostgreSQL cluster on Oracle Cloud InfrastructureĬompute instances. This reference architecture shows a typical three-node deployment of a
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