Why NSLOOKUP Shows ‘Default Server: UnKnown’ Fix ::1 Loopback Issue

In this video, we explain the common NSLOOKUP message:

Default Server: UnKnown
Address: ::1

You’ll learn:
✅ What ::1 means in DNS resolution
✅ Why NSLOOKUP shows “UnKnown” as the default server
✅ How reverse DNS and PTR records affect this output
✅ How to fix or avoid this issue in Active Directory and non‑AD environments.

#nslookup #dns #troubleshooting #ipv6 #activedirectory #learninhindi PTRrecord #learnnetworking

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Видео Why NSLOOKUP Shows ‘Default Server: UnKnown’ Fix ::1 Loopback Issue канала Learn In Hindi