Windows XP – AgileOps

Virtualization Technologies used today and its benefits!

Ibrahim Quraishi — Thu, 14 Jun 2012 02:18:51 +0000

Reduce power and space requirement in data centres

Fast application and service provisioning

Improved manageability

Business continuity

When these factors are measured by a survey taken by f5 few years a go we got the following results. This clearly explains that the Businesses are focused to do server consolidation and reduction of power and space requirement which is the driving factors even today. The types of virtualization do we currently have ? as discussed this on my previous post, I am going to compare them today. According to surveys taken recently we have the following stats. This clearly explains us that most of the Virtualization technologies are been used today, however still the most popular one is Server virtualization. Never the less this is taken on a different level today to get the Desktop virtualization for the end users companies like Citrix and VMware have got a lot of powerful products for this.

Finally I would like to discuss the products which are used in the industry and to what extent. The most widely used product is VMware ESX and then comes Microsoft Hyper-V. As we can see from the table below.

I will be disscussing VMware and Hyper-V Technologies and theire benifites over one and outher in detail in my next post.

Source: https://www.f5.com/pdf/reports/enterprise-virtualization.pd https://www.vmworld.com/community/conferences/2008/ https://communities.vmware.com/community/vmug/us_northeast/boston httpss://2008.msteched.com/itpro/public/precons.aspx www.microsoft.com/virtualization/default.mspx

www.f5.com/solutions/resources/white-papers/

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Are you Secure when you browse the web ?

Ibrahim Quraishi — Thu, 11 Nov 2010 01:26:51 +0000

Eventually someone else started using their network; they only realized this after they felt that their connection became slow. This could have been worst as people can capture all the packets and get the critical information like online banking information, CC numbers etc. The truth is even if your using secure Wi-Fi connection, wireless technology can still be very easy to compromised, how ? Check out for yourself Googleit – how to crack Wi-Fi network and you will get the answer. However we can avoid this just by making sure we do not use simple name or dictionary words as a passphrase. Always use complex passphrase /WEP/WPA2 keys and make sure you have a key which is at least 10 to 12 characters long. Now let’s get to the point How to secure Your wireless network ? Change Your network name and Your router login information Simple job just login to the router using the details from Manufacture. Usually found at the back on the router long and change the Name of the network and login information or at least the password. Secure Your Wi-Fi network: If you do not secure your network it will be open for anyone who can get your wireless signal. WEP (Wire Enabled Protection) this should only be used if you have old laptop that does not support the advanced encryption. If you are using this make sure you use 128 bit encryption. WPA 2 encryption is the best so far, However I suggest you keep a long passphrase and complex at the same time. Hide Your network name (SSID) Although most people don’t do this, but I strongly suggest you to hide the SSID. Simple logic if they can’t find your Wi-Fi signal you will be less vulnerable to get hacked. Enable Software and Hardware Firewall: Let me explain Software firewall is the firewall built into the Operating System i.e., Windows Vista or Windows 7 just enable it. Hardware firewall ah might be new to some of us, but most of the routers built today even the cheapest one has a firewall program built into them. So all you got to do is login to the router using your admin login and enable it. Hope you find this post useful feel free to comment if you ever used open / un-secure Wi=Fi.]]>

Memory Support in Windows – Kernal v User Virtual Addressing

Ibrahim Quraishi — Mon, 27 Sep 2010 22:02:43 +0000

example: [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(2)\WINNT [operating systems] multi(0)disk(0)rdisk(0)partition(2)\WINNT=”*****” /3GB Note: “*****” Can be any of the following operating system versions: Windows XP Professional Windows Server 2003 Windows Server 2003, Enterprise Edition Windows Server 2003, Datacenter Edition Windows 2000 Advanced Server Windows 2000 Datacenter Server Windows NT Server 4.0, Enterprise Edition So if you think you need more memory you can give it a short. However if your Kernal is already struggling then,I would not suggest you to try this. you can try some other options like increasing the virtual memory. reference: https://www.microsoft.com/whdc/system/platform/server/pae/paemem.mspx]]>

How to Virtualize Your Computer

Ibrahim Quraishi — Sun, 26 Sep 2010 14:08:36 +0000

Last Friday I have virtualized my Windows XP Laptop, before I start telling you guys, how its done I think its worth mentioning why I need to do it?

We normal Virtualize the physical server that are very old and start getting faults very often or they are too big for us to keep in our data centres. I have dual booted my laptop with Windows 7 ’64 bit’ edition, Which works brilliant. However Win7 is as this is 64 bit version of Windows I had to work around quite a few applications which I use on daily basis to get them work on Win7. However the most important software which I need to work from home is the vpn client provided by CISCO. The VPN client is yet to be rewritten for Win ’64 bit’ CPU. As a result I could not use Win7 to work from home, as I was unable to install VPN client to deil. Now you can guess why I virtualized my Windows XP OS. For P2V (Physical to virtual Conversion) all you need is VM ware Vcenter which is the software that does this beautiful job of converting the Physical machine in my case Laptop to a VM ware Virtual machine more specifically it rebuilds it to a .VMDK file (a specific file format for VMware virtual machines). This is how you do it:

1. Open VCenter and select Convert Mechine

: VCenter

2. Specify Source: On the new screen you we will need to select source which will be the system you want to virtulize.

• From the dropdown select Power-on machine. • Make sure you select this local machine.

: Specify Source

3. Specify Destination: On this screen you will need to specify the destination and destination type i.e. if you want the virtual machine to be a workstation or a vmware Infrastructure guest machine.

• Select the destination type as Vmware Workstation or Other VMware or virtual machine • Select a VMware product VMware Worksation 6.5.x • On the virtual machine details section You will need to give the name of the system (what ever you want it to be known as) • Specify the destination to store the vm ( you will find the .vmdx file eg. TechnoMechine.vmdx)

: Specify Destination

4. Specify Destination View and Edit Options: On this screen you can edit all Virtual machine and select the requirement you need for your virtual machine.

• We can give the storage size by default VCenter will like to give the same size of the source drive where your Operating system is installed. • I have my XP installed on 30 GB partition and I have now extended it to 50 GB as I was struggling for disk space. • You can click on the Advanced to view more option.

: View and Edit VMware

View and Edit VMware 5. Devices : This section is to setup the number of CPU you want your VM to use and the Memory you want to give to the VM.

6.Networks: this section is to choose how you want the vm to connect to the network.

We have 3 options: •Bridge that allows you to connect directly to the physical network. •NAT (Network Address Translation) Used to share the host IP address. (recommended) •Host-only that setup a private network share with the host machine.

7.Services: always make sure you disable all the services which are specific to the hardware as you will not need them once the system is virtualized. an example is Apple Mobile device for iPhone.

8. Ready to Complete: Summery of all the selections you have made just go through it to be sure that you have selection is correct. If you wish to change something you can still hit on the back button and get it changed.

Once you confident that you have everything correct on this page click Finish and sit back and relax. Once you confident that you have everything correct on this page click Finish.

: Physical to Virtual Conversion by VmWare Vcenter

After the P2V is completed, I used the VM ware Player to open the .vmdk file this understands that it’s a virtual machine and starts the system. Just by chose the option that says open an existing VM machine. And browse to the .vmdx file, you should be ready to play the vm.

We can also Save/Restore the VM to save time which is similar to hibernation After opening XP vm I am connecting to the VPN to make sure the RSA still work after vitalizing. If anyone wants to do this and need any help just let me know I will update this post with step by step instructions for doing the P2V conversion. Advantages of virtualization: • Save hardware replacement cost on event of hardware failure. best for old servers that are running crappy hardware and keeps braking every other week. • Save maintenance cost. • Save energy as your not powering it on its running on another Server • You will eventually save money on cooling too. • Most importantly if you think that the Virtual machine needs more memory all you would need to do is shut down and increase memory. • The same applies to disk space all you will need to do is add a new Virtual disk image and map it to the VM it will start looking at the new data store in My Computer. If anyone has any questions please feel free to comment .]]>