What does it mean if a DNS lookup fails?

By Advices

What does it mean if a DNS lookup fails?

In Google Chrome, the DNS Lookup Failed is one of the most common errors, along with Err_Connection_Reset or Err_Name_Not_Resolved. This error occurs because something happened to your DNS servers, such as DNS servers were timed out, or could not connect to DNS servers somehow.

Does a subdomain need a DNS record?

Add a subdomain record to your DNS zone file when your domain is using GoDaddy nameservers. Subdomains use a domain prefix, such as blog.mycoolnewbusiness.com, as an A record to point to an IP address. To add a subdomain that points to a domain name, you’ll need to add a CNAME record.

What is sub domain in DNS?

In the Domain Name System (DNS) hierarchy, a subdomain is a domain that is a part of another (main) domain. For example, if a domain offered an online store as part of their website example.com , it might use the subdomain shop.example.com .

How do I add DNS records to a subdomain?

You can create A record for subdomains from Client Area using DNS management as follow:

  1. Login to your Client Area account, and click on Domains > My Domains.
  2. Click on the domain you want to add subdomains to.
  3. Click on Add Record.
  4. Enter your subdomain name in the Record field.
  5. From the Type menu, choose A record.

What is the correct DNS record for nslookup?

Edit: nslookup has been run in this scenario and correctly returns the proper DNS record from the internal DNS server (172.16.1.3) This same user on a personal (not domain-joined) Windows 7 Professional computer is able to access the websites at company.com and subdomain.company.com when connected their home network

Can a DC resolve a subdomain with a separate IP address?

So basically we have one DC who cannot resolve the IP of the subdomain but can resolve anything else without issue, including the same domain without the subdomain (which is indeed a separate IP address).

What is the difference between nslookup and Wireshark DNS?

Whereas NSLookup actually just does a DNS query. You’ve verified this with your Wireshark traces, no lookups are performed by Windows when trying to get to company.com but nslookup shows a proper DNS lookup. This is why you’re unable to resolve the domain via ping or web browser, but nslookup is fine.

What is the difference between nslookup and Ping?

When you use ping or (almost) any Windows application, it uses the full Windows IP stack, including the parts that talk to AD. Whereas NSLookup actually just does a DNS query. You’ve verified this with your Wireshark traces, no lookups are performed by Windows when trying to get to company.com but nslookup shows a proper DNS lookup.