Use Nmap to Scan for Open Ports on Your Servers

Introduction Nmap, short for Network Mapper, is a free, open-source tool for vulnerability scanning and network discovery. Network administrators use Nmap to identify what devices are running on their systems, discovering hosts...

Kafka – The important configuration

Article This article points out certain high-level points that you should think about before deploying the Kafka cluster into production. It's divided into 3 parts: Tuning Kafka Producers, Tuning Kafka Consumers, and...

What Is a Cloud Architect?

The cloud architect is responsible for the entirety of cloud computing initiatives within an organization and for directing the architectural aspects of a cloud brokering team across all aspects of IT...

[Linux For Beginners] Linux Users and Permissions

This tutorial will provide you with an explanation of how Linux users organized, what permissions are, how they work, and how to manage them. A number of examples will be provided...

How to auto disconnect inactive users after a period of time in Linux

If there are many users who access to your system, it’s dangerous and resource-consuming when users keep their ssh connection for a long time. In this post, I would like to...

Some good subreddits on Reddit

Reddit is an American social news aggregation, web content rating, and discussion website. Registered members submit content to the site such as links, text posts, and images, which are then voted...

curl vs wget

What both commands do both are command line tools that can download contents from FTP, HTTP and HTTPS both can send HTTP POST requests both support HTTP cookies both are designed...

Tuning Linux server for MongoDB

For AWS Load Balancer, you can select the appropriate load balancer based on your application needs. If you need flexible application management, we recommend that you use an Application Load Balancer....

Relational vs non-relational databases

In the world of database technology, there are two main types of databases: SQL and NoSQL—or, relational databases and non-relational databases. The difference speaks to how they’re built, the type of...

AWS Certified Solutions Architect – Associate Preparation Guide

The AWS Certified Solutions Architect Associate exam is intended for individuals who perform a Solutions Architect role. This exam validates an examinee’s ability to: Identify and gather requirements in order to define...
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Gadget Ogling: Amazon on Fire, Virtual Reality, True Nature and Energy...

Happy Sunday from Software Expand! In this week's edition of Feedback Loop, we talk about the future of Windows Phone, whether it makes sense...

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