The output /dev/sda: data means that /dev/sda does not contain a recognizable file system or partition table. This suggests one of the following: Here’s how to proceed based on your scenario: 1. Check for Partitions Again Run the following to see if any partitions exist on the disk: lsblk Check if there’s any partition like […]
Monitoring Docker containers with Zabbix Agent 2 provides a powerful way to keep track of your containerized environments. In this guide, we’ll walk you through the steps to install Zabbix Agent 2, configure it for Docker monitoring, and ensure it’s running smoothly. Step 1: Install Zabbix Repository To get started, add the Zabbix repository to […]
Lazy loading is a design pattern commonly used in web development to defer the loading of non-critical resources at the initial load time. Instead of loading all resources upfront, lazy loading loads resources only when they are needed. This can significantly improve the performance and user experience of a web application by reducing the initial […]
Debugging Kamailio, an open-source SIP server, involves several steps and techniques to identify and resolve issues effectively. Here’s a detailed guide to help you debug Kamailio: 1. Enable Debug Logging First, increase the verbosity of the logs. Modify the Kamailio configuration file (kamailio.cfg) to set the debug level. Add or modify the following lines: Higher […]
Setting up RabbitMQ in Docker Swarm for involves orchestrating RabbitMQ services across multiple nodes, ensuring high availability, and configuring security and monitoring features. Below are step-by-step instructions to set up RabbitMQ in Docker Swarm for production: Prerequisites: Steps to Set Up RabbitMQ in Docker Swarm: Remember, these are general guidelines, and you should adapt them […]
Role-Based Access Control (RBAC) is a common approach for implementing access control in web applications. In an Express.js application, you can implement RBAC by creating middleware functions that check the user’s role and grant or deny access to certain resources based on their role. Here is an example implementation of RBAC middleware in Express.js: In […]
Both XMPP and Socket.io can be used to build a Slack-like application, but they have some key differences that may make one more suitable for your needs than the other. XMPP (Extensible Messaging and Presence Protocol) is an open standard for real-time communication that is widely used in instant messaging and other real-time applications. XMPP […]
The best open-source WebRTC SIP server is likely to be a matter of personal preference and the specific requirements of your project. Some popular options include: Kamailio: A high-performance SIP server with support for WebRTC and many other protocols. It is widely used in large, carrier-grade deployments. Jitsi: A set of open-source projects that provide […]
Compression is the process that decreases the file sizes. During the compression process all details from the original file will be maintained in compressed file. It boosts the working of Node.js applications by decreasing above 70 % of size. Introduction: Gzip is a file format and software application which is used in Unix systems for […]
WebSocket is a computer communication protocol which provides full-duplex communication channels over a single TCP connection. It makes possible to create web applications that supports real-time bi-directional communication between both clients and servers. Most of the modern web browsers support WebSocket including all size devices. While making web applications having realtime communication features like audio […]