DynamoDB, AWS’s NoSQL database service, is designed for scalability and performance. However, getting the best out of DynamoDB requires a deep understanding of access patterns. Introduction A co...

We will explore AWS OpenSearch Service, how it was introduced and deep dive into challenge of documents reindexing. OpenSearch Brief History: The Forking of Elasticsearch Elasticsearch is an ope...

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications. One powerful fea...

Describes step that are required when you need to modify existing GPG key (add/remove email, additional information) List GPG keys gpg --list-secret-keys --keyid-format=long [keyboxd] ---------...

We are using AWS Command Line Interface (CLI) in multiple projects and daily operations. The aws cli is a propriatary tool for managing AWS services and resources from the command line. It is maint...

SSH besides standard configuration where we define what host uses which key and user can have advanced features. Let’s check the feature that allows to specify different ssh keys for the same host ...

Abstract This is a first post in series of AWS Graviton ARM-64 vs Amazon X86-64 GRAND PRIX 2024 where we will check different performance factors of Graviton, compare to classic x86. I will use ow...

Abstract Session Initiation Protocol (SIP) trunking is a technology used in Voice over Internet Protocol (VoIP) telephony that enables the connection of a private branch exchange (PBX) to the inte...

Abstract Asterisk is an open-source PBX (Private Branch Exchange) software that can be used to build a VoIP system. In this post, we will walk through the process of building Asterisk from sources...

Abstract Port forwarding or SSH tunnelling is technic widely used to map remote ports to a client machine with possibility of remapping. The data traffic is encrypted and transferred within SSH tu...