Jan 21, 2012 · This video tutorial discusses how to use the NSLOOKUP command to troubleshoot DNS issues. More guides and tutorials: http://www.itgeared.com/.

Troubleshooting DNS - Some helpful commands If you are trying to troubleshoot your DNS, and check why it might not be working properly, try some of these commands to help you out. We will be using the command line and nslookup/dig plus a few useful services to see what is going on. Problems with the DNS servers from your internet service provider can compromise the functionality of certain Avast products. You may experience the following issues: Avast SecureLine VPN: Avast SecureLine VPN cannot establish an internet connection, or you cannot browse the internet while conn Jun 18, 2001 · Switching DNS name servers By default, the Nslookup utility directs its queries to the default DNS name server. If you want to test other DNS name servers on your network, you can do so easily from Jul 05, 2017 · DNS Server Problems. When you try to access Google.com, your computer contacts its DNS server and asks for Google.com’s IP address. The default DNS servers your network uses are provided by your Internet service provider, and they may sometimes experience problems.

Under Options, select the Show command check box. Under Nameservers, select the server that you want to use for the DNS query. You can use the default name server, or select a specific DNS server, like OpenDNS or Google.

Note: For more information about DNS lookups, see Using dig to query name servers (for Linux® and macOS®) and Check DNS records on Windows with nslookup (for Windows®). Check the Time to Live. After you confirm that the registrar is correctly pointing the domain to Rackspace, check the Time to Live (TTL) of the domain in Cloud DNS.

Apr 23, 2019 · If a user’s browser window comes up blank with a message that the “server DNS address cannot be found,” this signals a DNS error that needs your instant attention. The inability to access the internet or particular sites can have an immediate negative business impact.

Oct 28, 2011 · Nslookup.exe is a command-line administrative tool for testing and troubleshooting DNS servers and host name resolution issues. This tool is installed at the time that TCP/IP is installed on the computer. For modern operating systems starting with Windows 2000, TCP/IP is installed by default when a network adapter is installed on the computer.