In some situations it could happens to use a client vpn to access in some lan or network segment to manage or interacts with systems that are isolated from external access. In this post I’ll show howto do it with pfSense. Installation and configuration new virtual machine GuestOS: Other FreeBSD 64bit Hardware (min): 1 vCPU […]
Workload balancing is another vSphere feature that using vMotion and sVmotion increase the system efficiency and in some cases could be a cost savings solution. Sources: https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.resmgmt.doc/GUID-98BD5A8A-260A-494F-BAAE-74781F5C4B87.html https://blogs.vmware.com/vsphere/2016/05/load-balancing-vsphere-clusters-with-drs.html (thx to Matthew Meyer) https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1007485 Resource management Resource type are: CPU Memory Power Storage Network Resource providers are: Host Clusters Datastore cluster Resource consumers are VMs. Goals […]
The added value for a server to be virtualized in a vSphere environment is the agility to move itself across physical environment with near zero downtime. vSphere started talking about vMotion and storage vMotion to give back to customer the agility to minimize planned downtime for maintenance. Sources: Official doc: https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.vcenterhost.doc/GUID-FE2B516E-7366-4978-B75C-64BF0AC676EB.html It is possible to […]
All of us know the direct installation via media, which is the most used by many folks during “poor” cluster installation (up to 6 nodes installation). But in this post I would highlight other installation methods, extracting pieces of infos from official docs: https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.install.doc/GUID-D0A72192-ED00-4A5D-970F-E44B1ED586C7.html Scripted installation It’s possible to perform scripted way to install and […]
Backup and restore network configuration vSphere 5.1 and later enables you to backup and restore the configuration of a vSphere Distributed Switch. It’s possible to restore the virtual network configuration in cases of database or upgrade failure or use backup as template to create a copy to the same vSwitch in new vSphere environment. Export […]
I’m writing this post to highlight some advanced vSphere topics during my VCP6 Study. Sources for this post are: vSphere 6 Official Docs (https://pubs.vmware.com/vsphere-60/index.jsp#com.vmware.vsphere.networking.doc/GUID-35B40B0B-0C13-43B2-BC85-18C9C91BE2D4.html) KB 2051826 https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2051826 KB 2034277 https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2034277 Link aggregation and LACP Basics https://www.thomas-krenn.com/en/wiki/Link_Aggregation_and_LACP_basics Networking policies You apply networking policies differently on vSphere Standard Switches and vSphere Distributed Switches: vSphere Standard Network Switch […]
New vSphere version comes with a powerful web user interface, and this blog post could be “outdated”. But a great part of sysadmins, which use C# Client on Windows 10 could meet a strange graphical issue opening VM console: To solve this issue, according with some forum, and personally verified, you must uncheck the […]
Using Powershell module Posh-ssh is a soft-way to handle a Linux system with ssh service enabled. But not all linux system had the same security policies for ssh user/role/session: thinking about ubuntu, during installation, the first user could gain the administrator privileges only using sudo command. But during server deployment, is quite boring (and sometimes […]
In this post I’ll show how to connect to remote systems using local/AD credential with Powershell. To successfully connect to remote system you should have a local/AD Administrator account be able to gain Admin privileges to remote server. This how-to is tested on Windows Server 2012 and Windows Server 2016. Enabling Remote access Using a […]
For first timer, like me, in Powershell this could be a starting point for quite serious developing. Just to know: Powershell previously was made for Windows automation tasks and was used with VMware modules to automate vSphere, vRA, NSX (and many other) environments. Now this shell is available for Mac and Linux; check this for […]
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