Tag Archives: DNS

NSlookup incorrectly appending domain name in windows 10

Nslookup correct reply

Noticed this problem in Windows 7 and windows 10 systems after adding the system to a windows Domain Controller. The scenario is like this, nslookup query will reply a wrong result if you run the DNS query with a different DNS server. Eg: nslookup google.com (Here it is trying to get IP address of Google from Googles dns server.) …

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vmware data protection (VDP) ip/dns could not be resolved

tcpdump DNS output

“ANY” (*) DNS Query is used by VMware Data Protection (VDP) After a VMware migration from version 4.5 to 5.5, I struck-up in the installation of VMware Data Protection (VDP) 6.1.1. The deployment of VDP appliance got succeeded. But while configuring the appliance through the web browser (link : https://vdp.example.com:8543/vdp-configure/), it return an error. “IP/DNS could not be resolved. Please …

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Batch Script to check DNS results from different DNS Servers

Batch Script to check DNS

Normal DNS propogation maximum time is 24 hr to 48 hrs. but usually servers start updating from first hour itself. Server changes and Name server changes usually happen when we migrate Hosting accounts. It is a challenging task for webmasters to get the right DNS reply. In this situation, we use to test popular public dns servers staus. How to …

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Parental control using OpenDNS Family Shield


DNS level security system is one of the easiest ways to implement. No need to update the signatures locally. Because all the updates happening in server side itself. And the main advantage I noticed is there is no softwares ( client application ) required. Open DNS is secured DNS service, In addition they launched a new service called Family Shield, …

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DNS Servers – Why DNS and How it works

india internet

I hope most of you know about what is what about DNS, the mighty ” Domain Naming System ( or Service or Server ). This DNS is used for Name resolution purposes. So why name resolution is needed ? ( Many questions ha ? ). In early days Http and other services were accessed by concern server IP addresses, but …

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Security features of OpenDNS


OpenDNS is one of the public DNS Servers. Open DNS provides many useful features like security caching and web filtering. Comparing to other Public DNS services, security is the main feature of open DNS. Here we listed some security features of Open DNS

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