nslookup is a CLI, utility tool that is used to query the Domain Name System (DNS) to obtain domain name or IP address info. Mostly used for testing DNS propagation, whenever there is a DNS migration.
Prerequisites
- nslookup
Solution
If you want to test a DNS A record, is pretty simple:
nslookup devcoops.com
Example output:
Server: 217.16.82.92
Address: 217.16.82.92#53
Non-authoritative answer:
Name: devcoops.com
Address: 188.114.96.12
Name: devcoops.com
Address: 188.114.97.12
However, if you want to check for any CNAMEs, add the parameter / flag -type=CNAME. In this case:
nslookup -type=CNAME devcoops.com
Example output:
Server: 217.16.82.92
Address: 217.16.82.92#53
Non-authoritative answer:
*** Can't find devcoops.com: No answer
Authoritative answers can be found from:
devcoops.com
origin = elle.ns.cloudflare.com
mail addr = dns.cloudflare.com
serial = 2305395170
refresh = 10000
retry = 2400
expire = 604800
minimum = 3600
Conclusion
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