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Advanced Usage in Network Diagnostics

Table of Contents

Once you’ve mastered the basics, Network Diagnostics offers advanced options that give you deeper insights into connectivity, DNS, and server configurations.

Custom Ping Count #

Default: 10 pings Custom:

bash

ping -c 20 example.com

Runs 20 pings instead of the default 10.

Why use more pings:

  • Provides a more accurate average response time.
  • Improves detection of packet loss.
  • Useful for long-term monitoring and stability checks.

Using Specific DNS Servers #

Default DNS:

bash

nslookup example.com

Google DNS:

bash

nslookup example.com 8.8.8.8

Cloudflare DNS:

bash

nslookup example.com 1.1.1.1

Why use different DNS servers:

  • Test DNS server performance.
  • Bypass issues with your default DNS.
  • Compare speeds and reliability across providers.

Querying Specific Record Types #

Mail Records (MX):

bash

nslookup -type=MX example.com

Nameservers (NS):

bash

dig example.com NS

Text Records (TXT):

bash

dig example.com TXT

Why query specific types:

  • Verify email server configuration (MX).
  • Check nameserver setup (NS).
  • Inspect SPF/DKIM or other text records (TXT).

These advanced techniques allow you to fine-tune diagnostics, isolate problems more effectively, and validate domain configurations with precision.