1 views collected around this technical thread.
Learn how to install nslookup on Debian/Ubuntu and CentOS/RHEL, then explore seven practical commands for querying IP addresses, specifying DNS servers, retrieving specific record types, performing reverse lookups, setting search domains, using the set command, and exiting the tool.
This article explains the DNS domain query process, outlines various DNS record types, and demonstrates how to use common troubleshooting tools such as dig and nslookup, illustrated with diagrams to help readers understand and diagnose DNS resolution issues.
This article explains how CoreDNS resolves both internal and external domain names in a Kubernetes cluster, demonstrates nslookup and host queries, shows how to capture DNS traffic with tcpdump, and analyzes the impact of the ndots setting on name resolution behavior.
This article explains how to diagnose Linux server network problems using common tools such as ping, a shell script for LAN scanning, traceroute, nslookup, netstat, and telnet, providing command syntax, example outputs, and guidance on interpreting results.