Came across a unique request to get primary, secondary, and tertiary DNS values for multiple computers/servers across the domain. I started writing the script and got what I wanted. Now this started off as just to query for DNS Server information, but then I thought to add other pieces to get myself a good Network … Read moreGet Primary, Secondary, Tertiary DNS values and more from Multiple Servers
So had an interesting issue today where a Domain Controller (DC) was demoted yet the IP of the demoted DC was still showing up when running nslookup internaldomain.local Demoted DC:Â MWDC04 / IP: 10.14.111.111 I had done the metadata cleanup and tried many suggestions when googling the subject. To my surprise none of the solutions I … Read moreNSLookup still showing IP of demoted Domain Controller
Using the standard GUI Microsoft Management Consoles toÂ makeÂ the change toÂ speed up Active DirectoryÂ replicationÂ is not possible. The best result of usingÂ administratorÂ consoles will be toÂ increase domainÂ replicationÂ between domainÂ controllersÂ to 15 minutes.Â TheseÂ large time values were instituted into Active Directory at version 1 becauseÂ inter-siteÂ connectionsÂ during that era of computing and networking were muchÂ lower in bandwidth with the most common being frame-relay or … Read moreSpeed up Active Directory & DNS replication between Sites
If you have a list of hostnames/servers that you need IP addresses for its cumbersome to ping each server and get the ip address. PowerShell to the rescue! To do this we need a file called Server.txt with each server’s hostname on each line. I am storing the file in D:\Data\Servers.txt. Once we run the … Read moreResolve IP Addresses from List of Host Names
I noticed the DNS broke on my servers after Windows Update. The problem was KB3145126. Read more about it here. After a quick removal and reboot, DNS was operational again. To remove/uninstall KB3145126, open powershell and run the following:
wusa.exe /uninstall /KB:3145126
Hope this helps.