Network Diagnostics: `traceroute`, `nslookup`, `dig`
Perform advanced network troubleshooting and DNS lookups using specialized command-line tools.
Welcome to Network Diagnostics
Ever wonder why a website is slow or unreachable? Network diagnostics help you pinpoint issues!
In this lesson, we'll explore powerful command-line tools like traceroute, nslookup, and dig.
These tools help you understand network paths and resolve domain names.
Beyond Basic Connectivity
You might already know ping for checking if a host is reachable. But what if it's reachable but slow?
traceroute (or tracert on Windows) goes a step further. It maps the path your data takes to reach a destination.
All lessons in this course
- Network Diagnostics: `traceroute`, `nslookup`, `dig`
- Firewall Management: `ufw`, `firewalld`, `iptables`
- Secure Shell Key Management
- Capturing and Inspecting Traffic with tcpdump