Network – Marco Santucci

How to setup a linux Virtual IP Failover (IP Floating) on Oracle OCI managed by pacemaker

Post published:14 August 2024
Post category:Cloud Infrastructure Network Tutorial

Introduction In many environments, it is still essential to use infrastructures with an active/passive Linux cluster, which require the use of IP floating. In cloud infrastructures, the secondary IP address must be managed not only by the operating system but also by the cloud infrastructure. In this tutorial, we will see how the IP floating of a Linux cluster can be managed as an integrated resource by Pacemaker, in a simple manner and without custom code, as seen in several…

Establish a VPN with Oracle OCI with a dynamic public IP ADDRESS on CPE

Post published:23 April 2024
Post category:Cloud Network Tutorial

Oracle Cloud Infrastructure (OCI) does not support the use of Domain Name System (DNS) for configuring the Customer Premises Equipment (CPE) as the VPN tunnel endpoint. This tutorial aims to enable small businesses that do not have access to a static public IP address to use the IPSec service even with a dynamic address. The strategy involves deploying a script capable of automatically generating a new OCI tunnel whenever the public IP of the Customer Premises Equipment (CPE) changes. In…

Integrate on-premise internal DNS zone with private DNS on Oracle OCI VCN.

Post published:5 June 2023
Post category:Infrastructure Network Technology Tutorial

Integrating your private DNS with Oracle OCI's internal DNS can be very useful to extend the capabilities of your LAN in a hybrid cloud environment and facilitate the management of both infrastructures without increasing the workload for internal IT. By leveraging the DNS endpoint provided by OCI, devices in the corporate LAN can reach resources in the cloud environment and vice versa, making service management and integration quick and easy. Prerequesites: Your on-premise LAN is connected in VPN with Oracle…