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NSlookup Command: Your Ultimate Guide to DNS Troubleshooting

by RazaCommands, Network September 20, 2024September 20, 2024No Comments

When troubleshooting DNS issues, the nslookup command is an essential tool in the arsenal of any network engineer or systems administrator. Whether you’re trying to identify IP addresses or diagnose connectivity problems, nslookup provides valuable insight into how DNS servers are resolving domain names. This comprehensive guide dives into the technical details of the nslookup command, breaking down its usage and explaining how it can assist in DNS troubleshooting.

What is NSlookup?

nslookup stands for “Name Server Lookup.” It is a network administration command-line tool used to query Domain Name System (DNS) records. DNS is responsible for translating human-readable domain names like www.example.com into IP addresses, which machines use to identify each other on the network. By using nslookup, you can verify whether the DNS is resolving domain names properly, check the propagation of DNS changes, or troubleshoot issues such as incorrect mappings or DNS server errors.

Getting familiar with Private DNS server

by RazaDNS servers, Network November 24, 2022January 16, 2024No Comments

Today we will explore one really important component of your secure online surfing – A Private DNS server. Let’s start.

Private DNS server: Explanation & Example

Let’s imagine you begin your Android/ Apple device’s search for various items while connected to a public network (like one at a shopping mall). Your search queries could be intercepted by someone else on the same network who has the necessary abilities, allowing them to know exactly what you’re looking for. That might not be hazardous, or it might be dangerous. In either case, why run the risk?

List of most common DNS records

by RazaDNS records October 24, 2022November 24, 2022No Comments

The Domain Name System (DNS) is essential for the Internet to work. Network administrators deal daily with DNS records. But DNS and its records can be hard to digest for new people in this business.

If you want to understand the functionality of the most common DNS records, here you have!

A or AAAA records

These two DNS records are in charge of linking a domain name with its corresponding IP address.

Both records have the same purpose. The difference is that A works with Internet Protocol version 4 (IPv4), while AAAA works with Internet Protocol version 6 (IPv6).