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intermediate15-30 minutes

How to Troubleshoot DNS Resolution Issues

Step-by-step guide to diagnose and fix DNS problems affecting your network connectivity

The Problem

Websites won't load, showing 'Server not found' errors despite having internet connection

The Solution

Use DNS diagnostic tools to identify and resolve DNS server issues, cache problems, or misconfigurations

Your Progress

0 of 6 steps completed

Step-by-Step Instructions

Step 1

Test DNS resolution using nslookup or dig commands

Step 2

Check your DNS server settings in network configuration

Step 3

Flush DNS cache on your system

Step 4

Try alternative DNS servers (8.8.8.8, 1.1.1.1)

Step 5

Verify domain propagation if recently changed

Step 6

Check for DNS filtering or firewall blocks

💡 Pro Tips

  • • Take your time with each step - rushing can lead to mistakes
  • • Document your findings as you go for future reference
  • • Test changes in a safe environment before applying to production

Need More Help?

Try our professional network diagnostic tools or contact our support team for assistance.

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