Networking Task: Connectivity Diagnostics & Tools

Goal

Identify networking issues across systems, services, or containers.

Checklist

• Ping test:

  ping -c 4 google.com
  

• Trace route:

  traceroute google.com
  

• Port check:

  nc -zv 192.168.1.1 22
  

• DNS check:

  dig +short example.com
  

• Container networking:

  docker network inspect <network>
  docker exec -it <container> ping 8.8.8.8
  

Tools

• ping, traceroute, netcat, dig, curl, docker network