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Implementing API Rate Limiting in Node.js Express

Protect your Node.js Express API from brute-force attacks and abuse by implementing effective rate limiting middleware to control request frequency.

Monitor Log File for Keywords and Count Occurrences

A bash script to continuously monitor a log file, filter lines by keywords, and count their occurrences, useful for debugging and error tracking.

Check Disk Space and Send Alert if Above Threshold

A bash script to check disk space utilization on mounted file systems and send an alert email if usage exceeds a specified percentage threshold.

Automate Git Repository Sync for Deployment

A simple bash script to automate pulling latest changes from a remote Git repository and pushing local changes, ideal for deployment workflows.

Find and Delete Old Files by Age and Type

A bash script to locate and safely remove old files (e.g., logs, backups, temporary files) older than a specified number of days in a given directory.

Parse JSON API Response and Extract Data with JQ

A bash snippet demonstrating how to use `curl` to fetch a JSON API response and `jq` to parse, filter, and extract specific data fields from it.

Add, Remove, and Get Element Attributes

Master manipulating HTML element attributes using JavaScript, including setting custom data attributes, removing existing attributes, and retrieving their values dynamically.

Handle Form Submission and Input Events

Discover how to capture user input from form fields and respond to form submission events using JavaScript, preventing default browser behavior for custom validation.

Secure HTML Output Escaping

Learn to prevent Cross-Site Scripting (XSS) attacks by properly escaping user-generated content before rendering it in HTML, ensuring robust web application security.

Implement CSRF Protection with Tokens

Protect your web forms from Cross-Site Request Forgery (CSRF) attacks by generating and validating unique tokens with each form submission.

Securely Hash Passwords with Bcrypt

Discover how to securely store user passwords using the Bcrypt hashing algorithm, preventing plaintext storage and enhancing application security against breaches.

Enhance Security with HTTP Headers

Boost your web application's security posture by setting essential HTTP security headers like HSTS, CSP, and X-Frame-Options to mitigate common web vulnerabilities.