Category Archives: Windows

Powercli script to validate the basic vSphere Hardening

Last month I was working in a security hardening project and implemented as per the standard recommended by the VMware. We have to show to our internal security team that  all the vsphere environment is protected as per the VMware … Continue reading

Posted in PowerCLI, Powershell, VMware | Leave a comment

Useful information and links about Microsoft Remote Procedure Call (RPC)

The diagram below shows the RPC workflow starting with the registration of the server application with the RPC Endpoint Mapper (EPM) in step 1 to the passing of data from the RPC client to the client application in step 7. … Continue reading

Posted in Windows | Tagged , , | Leave a comment

Useful links about Windows Failover Clustering.

Free Ebook http://blogs.technet.com/b/askcore/archive/tags/failover+cluster/default.aspx   Understanding the Cluster Debug Log in 2008 http://blogs.technet.com/b/askcore/archive/2010/04/13/understanding-the-cluster-debug-log-in-2008.aspx   Troubleshooting Cluster Logs 101 – Why did the resources failover to the other node? http://blogs.technet.com/b/askcore/archive/2008/02/06/troubleshooting-cluster-logs-101-why-did-the-resources-failover-to-the-other-node.aspx   Measuring Disk Latency with Windows Performance Monitor (Perfmon) http://blogs.technet.com/b/askcore/archive/2012/02/07/measuring-disk-latency-with-windows-performance-monitor-perfmon.aspx   Planning … Continue reading

Posted in SQL server Failover Cluster, Windows | Tagged , , | Leave a comment

MLAG issue on CISCO UCS Servers with Arista switch

We were trying to configure the MLAG on the Arista switch on each uplink group of the CISCO UCS ( UCSC-C240-M3s) server . Initially ESXi 6.0 was installed and when we trying to enable the LACP on the dVswitch , host … Continue reading

Posted in Arista MLAG, CISCO UCS Servers, ESXi issue, Windows | Tagged , | 1 Comment

Powershell Script to check the DNS Server IPs for the windows 2012 servers in AD.

I was asked to get the details in one of our old environment to get the DNS settings for a list of Server 2012 R2 servers in the AD and If the third octet on the primary DNS server setting … Continue reading

Posted in Powershell, Windows | Tagged , , , | Leave a comment

Various options to enable the Telnet client and other methods to check the port.

In recent version of windows, Telnet Client is not enabled by default and in this blog we can see various method to install the client and to check the port connectivity. Option 1 : we can install it from the … Continue reading

Posted in ESX command, ESXi Tools, Powershell, VMware, Windows | Tagged , , , , , | Leave a comment

Powershell script to update the Onboard Administrator firmware.

By using the below Powersell script we can update the Onboard Administrator firmware. We need HP Powershell cmdlet to run this script and download the same from the below link. http://www8.hp.com/us/en/products/server-software/product-detail.html?oid=5440657#!tab=features To run this script we need Update-HPOAFirmware cmdlet. The Update-HPOAFirmware cmdlet … Continue reading

Posted in Firmware upgrade, HP, Powershell | Tagged , , , , | Leave a comment