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VMware on AWS - How to restore NSX DFW firewall rules to previous state

Customers who uses NSX day-in, day-out would like to have a point-in time restore functionality of DFW firewall rules. Many customer have a large footprints in VMC and make changes to DFW quite often. This feature was missing for long time and we could see its included in recent versions . Let's see how DFW configuration roll back works  NSX DFW configuration has versioning, and it is stored in the NSX Manager.  Every time when someone update DFW configuration, NSX creates one more version but keep storing the previous ones. You can rollback for previous config but reapplying it once again.  You can find the options under Networking & Security tab , > Security > Distributed Firewall . In the right side we see an Actions drop down. Choose View to get to the below screen.  Let’s go through the use case:  1. Original state- default config with no custom rules:  a. There are no saved configurations during last 30 days: In my existing test setup, with the current setting

Cloud Computing interview questions and answers ( Career Ride)

How does cloud computing provides on-demand functionality? Cloud computing is a metaphor used for internet. It provides on-demand access to virtualized IT resources that can be shared by others or subscribed by you. It provides an easy way to provide configurable resources by taking it from a shared pool. The pool consists of networks, servers, storage, applications and services. What is the difference between scalability and elasticity? Scalability is a characteristic of cloud computing through which increasing workload can be handled by increasing in proportion the amount of resource capacity. It allows the architecture to provide on demand resources if the requirement is being raised by the traffic. Whereas, elasticity is being one of the characteristic provide the concept of commissioning and decommissioning of large amount of resource capacity dynamically. It is measured by the speed by which the resources are coming on demand and the usage of the resources. What are the

Interview Questions on VMware vSphere - PART 1

1. What is a Hypervisor? It is a program that allows multiple operating systems to share a single hardware host. Each operating system appears to have the host's processor, memory, and other resources all to itself. However, the hypervisor is actually controlling the host processor and resources, allocating what is needed to each operating system in turn and making sure that the guest operating systems (called virtual machines) cannot disrupt each other. 2. What is the hardware version used in VMware ESXi 5.5? Version 10 Below is the table showing the different version of hardware used in different VMware products along with their release version Virtual Hardware Version Products 10 ESXi 5.5, Fusion 6.x, Workstation 10.x, Player 6.x 9 ESXi 5.1, Fusion 5.x, Workstation 9.x, Player 5.x 8 ESXi 5.0, Fusion 4.x, Workstation 8.x, Player 4.x 7 ESXi/ESX 4.x, Fusion 2.x/3.x Workstation 6.5.x/7.x,Player 3.x 6 Workstation 6.0.x 4 ACE 2.x, ESX 3

Answers to Microsoft Active Directory Interview Questions-2008

 Active Directory enables single sign on to access resources on the network such as desktops, shared files, printers etc. Active Directory provides advanced security for the entire network and network resources.  Active Directory is more scalable and flexible for administration. Functional levels help the coexistence of Active Directory versions such as, Windows NT, Windows 2000 Server, Windows Server 2003 and Windows Server 2008. The functional level of a domain or forest controls which advanced features are available in the domain or forest. Although lowest functional levels help to coexist with legacy Active Directory, it will disable some of the new features of Active Directory. But if you are setting up a new Active Directory environment with latest version of Windows Server and AD, you can set to the highest functional level, thus all the new AD functionality will be enabled. Windows Server 2003 Domain Functional Levels: Windows 2000 mixed (Default), Windows 2000 native, Wind