AWS CloudTrail is an application program interface (API) call-recording and log-monitoring Web service offered by Amazon Web Services (AWS). AWS CloudTrail allows AWS customers to record API calls, storing them in Amazon S3 buckets. API activity data included in the service includes the identity of an API caller, the time…

What is HAProxy? HAProxy (High Availability Proxy) is a TCP/HTTP load balancer and proxy server that allows a webserver to spread incoming requests across multiple endpoints. This is useful in cases where too many concurrent connections over-saturate the capability of a single server. Instead of a client connecting to a single server which…

Git is a free and open-source version control system that can handle both small and large projects with ease. Git is easy to learn and has a small footprint while providing lightning-fast performance. It offers more features than Subversion, CVS, Perforce, and ClearCase, such as cheap local branching, convenient staging…

Argo CD started at Intuit a few years ago when Intuit acquired a startup named Applatix and tasked its team with developing a new self-service developer platform to increase agility and innovation, and reduce complexity. Applatix already had Argo Workflows, a workflow orchestration engine, but during the course of building…

In a network, a service mesh controls service-to-service communication. It allows different components of an application to communicate with each other. Cloud-based applications, containers, and microservices are typically used with service meshes. Service meshes control how services are delivered across an application. Among the features offered by Service Mesh are…

What is Apache HTTP(TCP) Port ? — A way to establish communications between two computers. It reliably delivers messages of any size in the order they are sent. This is a better protocol for our purposes. And we can change also TCP port number. Input: Command $ netstat -tnlp The options used in this command have the following meaning: -t — Show…

What Is WordPress? — WordPress What is WordPress? At its core, is the simplest, most popular way to create your own website or blog. In fact, WordPress powers over 39.5% of all the websites on the Internet. Yes — more than one in four websites that you visit are likely powered by WordPress. The…

What is a Hosts File? — The hosts file is a local plain text file that maps servers or hostnames to IP addresses. This file has been in use since the time of ARPANET. It was the original method to resolve hostnames to a specific IP address. The hosts file is usually the first process in…

What is Terraform? — Terraform is an open-source tool created by HashiCorp to deploy infrastructure as code. Using the HashiCorp Configuration Language, or optionally JSON, users configure and provide data center infrastructure. Benefits of Terraform · Terraform manages infrastructure across multiple cloud platforms. · The human-readable configuration language helps you to write infrastructure code…