Get Primary, Secondary, Tertiary DNS values and more from Multiple Servers

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 more

Get All DCs in the Entire Forest

Getting a know a new environment for a new client and I a quickly needed information about all domain controllers in the entire forest. Wrote a small little script to provide me all the information I needed:

 

Convert a Dynamic IP to Static

Working on a project where on some servers the DHCP assigned addresses needs to be converted to static. Since there is always more than one…I needed to script it. Here is a quick way to do it via PowerShell.

Hope this helps!

NSLookup still showing IP of demoted Domain Controller

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: 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 more

Speed up Active Directory & DNS replication between Sites

Using the standard GUI Microsoft Management Consoles to make the change to speed up Active Directory replication is not possible. The best result of using administrator consoles will be to increase domain replication between domain controllers to 15 minutes. These large time values were instituted into Active Directory at version 1 because inter-site connections during that era of computing and networking were much lower in bandwidth with the most common being frame-relay or … Read more

Creating Security Groups for File Shares in Bulk using PowerShell

Security Groups are great for managing large groups for permissions.  A client requested that they needed to have Read-Only, Read-Write, and Ready-Modify (allow for deleting) for all their file shares for better management. Getting the Share Names In order for me to create the groups I needed the share names. PowerShell to the rescue! Type … Read more

Remove duplicates, blank lines, spaces, to get unique values and sort data in one operation

From time to time I come across this need; where I need to scrub a file where there are duplicates, there are blank lines, the sort order is all wack, and it just needs to be formatted to where it can be more readable and/or usable. This method just doesn’t apply to text, but also … Read more

How to setup network after RHEL/CentOS 7 minimal installation

After installing RHEL/CentOS 7 minimal, You may not able to connect network in that machine. This will happen because Ethernet interfaces are not enabled by default. This guide explain you to setup network on RHEL/CentOS 7. Setup network on CentOS 7 minimal First, type “nmcli d” command in your terminal for quick list ethernet card … Read more