Learning Network Troubleshooting: Practical Network Diagnostics and Solutions
Learned how to systematically diagnose and resolve common network issues using tools like ping, traceroute, nslookup, and ipconfig/ifconfig. Covered the OSI and TCP/IP models as a framework for isolating problems layer by layer, from physical connectivity issues up through DNS and application-level failures. Also gained practical experience identifying issues like IP conflicts, DHCP failures, DNS misconfigurations, and slow network performance, along with strategies for documenting and escalating problems efficiently.