Follow these simple steps to resize a Virtual machine disk (vmdk) and then extend the volume using LVM. Make sure that you have/make a backup before carrying out these steps. First go ahead and extend the vmdk from ESXi/vCenter. I...
VMWare
Replace SSL Certificates on ESXi 6.x/6.5 – VMware
The process of replacing the default SSL certificates on ESXi 6.x/6.5 is a simple process involving around 5-10 steps. We would need a seperate linux host to generate the openssl self-signed certificate (NOTE: we are not using any CA)....
Update ESXi version
Integrate FreeIPA/IDM with vCSA/vCenter Server for User Authentications
It's now possible to integrate FreeIPA/IDM (Red Hat) into vCenter Appliance (vCSA)/ vCenter Server for User authentications. We need to configure IPA server and vCenter Server for LDAP to authenticate users from IDM server. Follow this...
Access ESXi DCUI via SSH
It is possible to use DCUI (Direct Console User Interface) via SSH session to ESXi. At the command prompt just type in "dcui" and then you would be able to see the same screen as given below. You need to resize the SSH window BIG enough...
How to install/update VMWare Tools on CentOS/Red Hat
This article will explain how to go about installing VMWare Tools for CentOS/Red hat v6 & above. The install can be done via SSH Putty session but the recommended method is doing it via VMware console session and reason being that as...
How to update vCenter Server Appliance
Its easy to update vCenter Server Appliance and can be done using the WEB interface of vCSA. In this article I upgraded from v5.5.0 Update2b to v5.5.0 Update 2d. Take a snapshot of vCenter Server Appliance before you update just to be on...
Change “eth0” interface name and reload udev rules without a reboot
Its possible to change the interface name in Linux and reload without a reboot. It usually happens in Virtual environment where you add / remove interfaces frequently. You need to take note of the interfaces before you do any changes....
Fix datastore error “HostDatastoreSystem.Query VmfsDatastore CreateOptions” in ESXi
At home Lab I came across this error while adding a previously used Windows disk to ESXi. It appears half way while adding the disk via "Add Storage Wizard". The error can be resolved by formatting the disk in DOS format using Parted...
Add/Detect a new disk in a Linux VM dynamically without rebooting
Its possible to add a disk dynamically (without reboot) in a Linux host in Virtual Environment by following some simple steps in this article. In a Virtualized world there is a frequent requirement for adding extra disks/space on the fly,...