Understanding FSMO Roles – 3: Forest and Domain level roles

By | May 23, 2020

Till now we have understood the concept of Forest and Domain and also we know that we have five (5) FSMO Roles in total. Now let see how those roles are placed in an Active Directory Infrastructure. Out of five roles, two roles are Forest level roles and three are Domain level roles. It means,… Read More »

Understanding FSMO Roles – 2: Why we need them?

By | May 15, 2020

I hope from my last post, you got a fair idea about initial things, important to understand FSMO Roles (also called Operation Master). You know that Windows Active Directory structure is a multi-master operation. Means, in an AD, we generally have more than one master, called Domain Controllers. All DCs hold the database of Active… Read More »

Things to be followed during the renewal process of Openshift SSL Certificate.

By | May 12, 2020

This Articles mainly applies for the OpenShift v3.6 Cluster. This Article is all about the prerequisite preperation which need to be done before running the SSL Renewal Plabook (redeploy-certificates.yaml). While redeploying the SSL Certificate on OCP Cluster, the playbook might fails because fo some Issue. Consider checking the below points before redeploying the SSL Certificates… Read More »

How to resolve the Openshift Project Stuck in Terminating State and Failed to Delete Issue.

By | May 9, 2020

One of the Issues you may face after redeploying the SSL certificate or after any of the major change on OpenShift v3.11 cluster is related to the termination of any project. If the project is not getting terminated and it gets stuck then this may happen because the api-resources (api metrics server) is not running… Read More »

How to resolve the Openshift WebConsole Login Issue with AD Credentials.

By | May 6, 2020

If you are facing LDAP authentication issue in existing openshift cluster anytime or probably after deploying Self Signed/SSL certificate or after performing any of the major activity on the cluster, then you might need to check this article.  If you face intermittent login issue using your LDAP credentials like for every 3 requests (Incase of… Read More »

Understanding FSMO Roles – 1: Initial things

By | May 6, 2020

I remember when I started working as Windows Admin several years ago, FSMO (Flexible Single Master Operations) was a kind of nightmare for me. I Googled hundred times to find out what exactly it is, but found too theoretical/non-practical information. Now when I actually know what exactly it is, I find it very clear and… Read More »