IT-REACT

How to enable execution of PowerShell scripts and enable VMWare vSphere PowerCLI.

Ioan Penu / March 4, 2020 / Leave a Comment

As a System Administrator, you can reduce sometimes a considerably amount of time by running PowerShell scripts across your Windows Systems. Most of the scripts that you find online will not run if you haven’t configured previously PowerShell, and will throw you an unpleasant error in red fonts.My Windows is in German, so the error […]

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VMWARE: How to reset a VM via SSH

Ioan Penu / February 27, 2020 / 1 Comment

Working with VMWare it’s a continues challenge, with new surprises every day, but fortunately, so far, only with happy endings. Let’s see today’s story. I am working for a client that has a vCenter with 6 ESXi hosts. In order to access it, I have to start a VPN, then connect to a Windows terminal

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Change Password Complexity and Password Minimum Length settings in Windows Server 2012

Ioan Penu / February 27, 2020 / 1 Comment

If you are a System Administrator who has to comply your company’s systems with the security requirements asked by the latest standards and regulations, or just wants to better protect these systems, you will find in this post some info in regard to password configuration. We’ll see together how to enforce a password policy by

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VMWare Update Manager Error – VCSA 6.5: Host cannot download files from VMWare vSphere Update Manager patch store

Ioan Penu / February 17, 2020 / 4 Comments

After upgarding VCSA to version 6.5 at one of my clients, I’ve tried to upgrade also the ESXi Hosts. I’ve made the Baselines in VUM and attached them to the hosts. So far everything went smooth. After that I’ve scanned the hosts for updates and this is the moment when the error came up: “Host

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Importing OVA into VCSA 6.5 fails – The operation failed for an unknown reason

Ioan Penu / February 12, 2020 / Leave a Comment

I’ve experienced a problem while importing an OVA into VCSA 6.5. The error that I’ve got is the one bellow. As you can see it says that the problem occurs due to certificates that the browser does not trust. If you are checking the certificate in the web browser, you will see a certificate warning.

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Add a SD Card in VMWorkstation

Ioan Penu / February 3, 2020 / 1 Comment

Why I need to do this?! Because I’ve made a backup of a RPi’s SD Card to a Linux VM and now I would like to restore the created image file back to the SD Card. For the moment I’m doing this only to see how should be made, my RPi still works very good,

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Backup your Raspberry Pi remotely

Ioan Penu / February 2, 2020 / 6 Comments

I think Raspbbery Pi is a great device and I love how easy and fun is to create IoT projects using it. I am using Raspberry Pi at my vacation house and also at my parents summer house. It is monitoring remotely the temperature, the voltage of batteries connected to the wind-turbine and solar-panels and

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How to Reset the vCenter Server Appliance Administrator password

Ioan Penu / January 29, 2020 / Leave a Comment

Use this procedure to reset the vCenter Server Appliance Administrator (administrator@vsphere.local) password. You will need the vCenter Server Appliance root user credentials. Step one – connect to vCenter Server Appliance Using putty or an OS with ssh support, connect through SSH to the vCenter Server Appliance console with the root user credentials Step two –

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Generate and install SSH-keys on Linux and Windows

Ioan Penu / January 12, 2020 / 2 Comments

A SSH key is an access credential in the SSH Protocol. SSH keys offer a more secure way of logging into a server with SSH than using user and password. More over, using a SSH-Key gives you the possibility to automate the login process, meaning you could create a script that will login to another

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Windows Server 2012 not allowing Remote Desktop Connection

Ioan Penu / January 7, 2020 / Leave a Comment

You have enabled RDP on the Windows Server 2012 machine and tried to reach it via RDP. Then you noticed that you can’t get through and receive the following message: You are sure that you’ve just enabled RDP, the computer is running and it’s also available on the network. So it should be something else.

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