The AWS Serverless Application Model (SAM) is an open-source framework for building serverless applications. Building serverless applications is a core feature of Amazon Web Services. Being able to deploy applications in the cloud in a matter of minutes is every developer’s dream. …

In this tutorial, we are going to go through how to set up a site to site VPN between your on-premise (VPC-B) and AWS Network (VPC-A) using OpenSwan. OpenSWan is open-source software, which can be used for IPSec VPN access in the Linux environment. Contents 1 Create the required VPCs …

AWS Secrets Manager is a service that makes it easier to rotate, manage, and retrieve database credentials. It is easy to configure Secrets Manager to rotate secrets automatically, which helps to meet the security needs. Secrets Manager offers built-in integrations for MySQL, PostgreSQL, and Amazon Aurora on Amazon RDS, and…

A guide on how to tackle a situation where we are unable to SSH connect to an EC2 instance because the disk is full. — In this tutorial, we are going to learn how to tackle a situation where we are not able to SSH to an EC2 instance due to the disk being full. …

What is Expect / AutoExpect In this tutorial we are going to use Expect tool to automate backup of Cisco switches into an FTP server using either Telnet or SSH. Expect is a natural and intuitive automation scripting language that operates in much the same way humans do when interacting with a system. You type…

In this tutorial, we are going to show you how to install Graylog on Debian 7 , in a step by step process. In addition, we will configure the Graylog agent on Windows (NXLog) along with Graylog Streams and Graylog Dashboards. You can use this tool to monitor your WordPress…

What is a Logical SQL Query A logical SQL query is a conceptual interpretation of what the result of a SQL query will be. The physical SQL query is the processing of the query by the database engine. …