4 Open Source Alternatives to Slack for Team Chat: IRC, Let’s Chat, Mattermost, and Rocket.Chat
If you want Slack-like team communication with more control, these four open source options are a practical starting point. This guide compares their strengths, trade-offs, and how to run a short technical pilot.
jstack Utility Deep Dive: JVM Thread Dumps, Deadlocks, and Mixed Stacks
This guide explains how to use jstack to diagnose JVM hangs and deadlocks, including forced dumps, core-file analysis, and mixed Java/native stack traces. It also clarifies where jcmd fits in modern JDK 8+ troubleshooting guidance.
Open Source Scanning Software: Evaluate Legacy Tools and Build a Modern SCA Workflow
The original post listed several tool names but no implementation guidance. This revised guide explains what open source scanning means in DevSecOps, how to interpret those legacy names, and how to implement a practical CI scanning workflow.
Lyca Mobile USSD Shortcuts: Check Balance and Data Balance Quickly
Use these Lyca Mobile USSD shortcuts to check your prepaid balance and remaining data in seconds. This updated reference includes quick steps, a workflow diagram, and troubleshooting guidance.
Single Sign-On Implementations: Practical Comparison and Evaluation Guide
This guide expands a short 2015 link list of SSO tools into a practical DevOps reference. You will learn how SSO flows work, how to compare implementations, and how to validate integrations with real commands.
SSH Passwordless Login with ssh-keygen and ssh-copy-id (Step-by-Step)
Learn how to configure SSH key-based authentication so you can log in without typing the remote account password each time. This updated guide covers setup, verification, ssh-agent usage, and safe hardening options.
Hydra for Authorized SSH Password Audits: Workflow, Controls, and Root Login Hardening
Hydra can help security and DevOps teams validate password strength in approved environments, but it must be used carefully and legally. This guide covers a safe workflow, key Hydra options, and practical SSH hardening steps to reduce root-login risk.
Dark Web Explained for DevOps: What It Is, What It Isn’t, and How to Reduce Risk
The dark web is a small, intentionally hidden part of the internet, often confused with the deep web. This guide explains the differences and gives DevOps teams practical steps to detect leaks, rotate secrets, and harden delivery pipelines.
CI/CD Pipeline Fundamentals for DevOps Teams: Workflow, Tooling, and Starter Configs
This guide explains how to design a practical CI/CD pipeline for DevOps teams, from commit checks to production rollout. It includes a workflow diagram, tool comparison table, and starter pipeline examples you can adapt.
MySQL Basic Troubleshooting Guide: Service, Port 3306, Logs, and Crash Repair
This Linux-first runbook helps you troubleshoot common MySQL issues quickly, from startup failures to port conflicts and slow performance. You will learn practical checks for service health, configuration, logging, and table repair.
How to Make Team-Building Exercises Actually Work: A Practical Facilitation Guide
Team-building activities only create value when they are tied to real team goals and followed by concrete actions. This guide gives managers and team leads a repeatable workflow, activity comparison, and facilitation checklist.
scmGalaxy Overview: SCM Community Mission, Training Model, and Tooling Focus
This revised profile explains scmGalaxy’s original community mission, training approach, and toolchain focus across SCM, build, release, and code quality practices. It also organizes the legacy details into a practical reference for teams evaluating similar training programs.
Apache Ant Properties: Access Java System Properties, Environment Variables, and Runtime Inputs
Apache Ant lets you reference properties with ${name}, including Java system properties, imported environment variables, and command-line values. This guide shows practical syntax, examples, precedence flow, and common pitfalls for reliable builds.
zip CLI Cheatsheet for DevOps (Clarifying the Classic “WinZip Commands” Post)
This revised cheatsheet turns the original option dump into a practical guide for day-to-day DevOps use. It explains the most important zip flags, when to use them in automation, and where teams commonly make mistakes.
Freeware Toolkit for DevOps: Revised 2009 Windows Software Catalog and Safe Selection Workflow
This revised guide turns a 2009 freeware link dump into a structured reference for engineers. It keeps key legacy links, adds a security-first evaluation workflow, and includes practical verification commands.
Run Remote Desktop from the Command Line with mstsc.exe (Including Legacy Console Mode)
Learn how to launch Remote Desktop sessions from Command Prompt or batch files using mstsc.exe. This updated guide covers syntax, common command patterns, and legacy console-session behavior.
Windows Batch Scripts to Shut Down or Restart a PC (Legacy and Modern Methods)
Learn how to build simple Windows batch files for restart and shutdown operations. This revision preserves the original legacy SHUTDOWN.EXE approach and adds modern, built-in shutdown command examples.
MS-DOS Basics: Practical Commands for Files, Directories, and Legacy Disk Tasks
This revised guide turns a classic DOS tutorial into a structured, practical reference for command-line basics. Learn essential MS-DOS commands for navigation, file operations, directory management, cleanup, and legacy floppy workflows.
Complete Guide to Software Packaging and Application Packaging
Here’s a comprehensive, in-depth tutorial covering all your sections and topics with enriched details. 1️⃣ What is a Package? A package is a namespace that organizes a…
Best & Most Popular 5 Code Editor for VBA programming Language
Visual Basic for Applications (VBA) is an implementation of Microsoft’s event-driven programming language Visual Basic 6, which was declared legacy in 2008, and is an associated integrated…
Best & Most Popular 5 Code Editor for R programming Language
What is the R programming language and how to work? R is an open-source programming language and is a free software environment for statistical computing. R was…
List Of Top 14 free Blogging websites in 2021 – I verified
What is Blogging :-A discussion or informational website published on the World Wide Web is called A Blog consisting of discrete, often informal diary-style posts. Posts are typically…
Top 5 Easy to USE and Best International Money Transfer Platform Online
International payments are still difficult to make without a third-party money transfer provider. Transfer apps offer the ability to send money across the world using different currencies…
How to Download Free O’Reilly Books?
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
‘Write My Assignment for Me’ or How to Get Quality Academic Assignment Help?
All of us are different and possess unique qualities, abilities, and inclinations. Some like maths with its figures and formulas, chemistry with its mysterious transformations, while others…
DevOps Certification DCP Projects List
DevOps Certified Professional(DCP) and Master of DevOps Engineering(MDE) Certification Projecsts List are as follow; Can you please submit following project in next 5-10 days. How to submit…
npm error: stack Error: EACCES: permission denied
Error Solutions: Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I…
Restore a default RHEL 7.x default repo list of EC2 Instance
Many time, my students have deleted or corrupted a yum repo list of RHEL7 or Centos 7 and i spent lots of time solving these problem. This,…
How to keep putty SSH connections alive
Introduction: This article describes how to keep SSH connections alive. If you experience problems when using SSH, such as dropped or unresponsive connections, you may need to…
Npm Error: Error: pngquant failed to build, make sure that libpng-dev is installed
Command I tried $ npm i –unsafe-perm Got following Error; Solution $ apt-get install libpng-dev Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering…