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Virtual Geek

Tales from real IT system administrators world and non-production environment

How to reset vCenter Server SSO administrator@vsphere.local password

Whenever I get a already configured VMware vSphere projects handover to optimization and modernization, Sometimes I received infrastructure vCenter server with forgotten passwords either root or administrator@vsphere.local. In my earlier blog I have already shows a procedure to Resetting root pass…

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vCenter Server Public Key Authentication configuration SSH error received disconnect Too many authentication failures

This article is a second part of vCenter Server SSH received disconnect Too many authentication failures. In ther earlier article I resolved error without touching or configuring the VCSA (vCenter Server Appliance Server) to skip public key authentication. In this article I will configure VCSA serv…

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VMware PowerCLI esxcli namespace command elements empty no output

This article is another part and related to this VMware PowerCLI Connect-VIServer Object reference not set to an instance of an object. The resolution used in the earlier blog is applied here in this article.

The problem description is, I connected to my vCenter server after I tried to connect…

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VMware PowerCLI Connect-VIServer Object reference not set to an instance of an object

While connecting to ESXi server with VMware PowerCLI from one of my server I was keep receiving below error. I wasn't able to connect to ESXi server directly from PowerCLI module. 

@SERVER01 ~ Connect-VIServer ironman.vcloud-lab.com
Connect-VIServer :  Object reference not set to an instanc…

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Automate Many-to-One client certificate mappings for IIS hardening using PowerShell

Recently while talking to one of my colleage from another department, he wanted help on PowerShell scripts to automate few IIS Webserver (Internet Information Services) advanced configuration where he was struggling setting few IIS settings of manyToOneMappings for hardning purpose, other setting…

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