How to Check DNS and Reverse DNS Using Command Line and Online Tools
Learn simple methods to check DNS and reverse DNS with nslookup and online tools like MXToolbox for troubleshooting network and email issues.
How to Find a Website's IP Address Using Ping and Traceroute
Learn how to quickly find a website's IP address using Ping or Traceroute commands on Windows and macOS.
How to Ping a Port: A Step-by-Step Guide
Learn how to ping a port using telnet and nmap with our easy step-by-step tutorial. Check if your network ports are open!