NSLookup - DNS Resolution Utility
Query Domain Name System servers to resolve hostnames to IP addresses or perform reverse DNS lookups. Essential for network troubleshooting and DNS configuration verification.
Usage
nslookup-tool [options] <hostname>
Features
- Forward DNS lookup (hostname → IP)
- Reverse DNS lookup (IP → hostname)
- Query specific DNS record types (A, AAAA, MX, CNAME, TXT)
- Specify custom DNS server
Examples
# Basic lookup
nslookup-tool example.com
# MX record lookup
nslookup-tool -type=mx example.com
# Use specific DNS server
nslookup-tool google.com 8.8.8.8