Showing posts with label configuration. Show all posts
Showing posts with label configuration. Show all posts

Sunday, November 20, 2016

Know to Configuration of Windows 8 Virtual Machine Step By Step guide

Know to Configuration of Windows 8 Virtual Machine Step By Step guide



Configuring a Windows 8 Virtual Machine

With the launch of Windows 8s Consumer Preview, youre probably itching to spend some quality time with Microsofts latest operating system. Although you may have already downloaded the ISO, we bet some of you havent decided how youre going to install it.
Considering youve just met, we assume most of you arent ready to clear a dresser drawer for Windows 8. Overwriting your current stable OS with pre-release code could be a recipe for disaster, though at least one TechSpot staffer is taking the plunge.
Dual booting is popular, but in our experience, rebooting into a separate environment is more trouble than its worth when youre just trying to sample beta (err, "preview") software. The same could be said for using the OS on a secondary PC near your primary rig.
Windows 8 Virtual Machine
Fortunately, running Windows 8 in a virtual machine solves all that: it wont remove your current OS, you can access it anytime you want without rebooting and it doesnt require any extra hardware. Whats more, the test OS can be deleted in only a few mouse clicks.
This write-up wont have much to offer folks experienced with virtual machines, but many users are still intimidated by them. We hope to demystify the process with a guide that installs a fully functional, commitment-free copy of Windows 8 inside your main OS.
So, what do I need?
Not much! You probably want 1-2GB of RAM and 20-30GB of storage allocated to the Windows 8 VM. You need a processor that supports virtualization (basically any major chip from Intel or AMD released since 2006). In other words, you need a semi-modern PC.
Accompanying said hardware, you need to download a copy of Windows 8 (either 32-bit or 64-bit will work fine, but the former calls for half the RAM and 4GB less storage). You also need virtualization software. Were using VirtualBox, a free solution from Oracle.
Got it. Lets do this!
Honestly, by the time youre done, youll probably wonder why you even consulted a walkthrough. Configuring a basic virtual machine is a lot easier than it might seem if youve never done it. Start by clicking New in VirtualBox and click Next on the first prompt.
Youll be asked to name your virtual machine. The name is purely for identification purposes, so you know exactly what the machine is later on. Were using Windows 8 CP 64-bit. You also have to choose the OS youre installing (hint: Windows 8 or Windows 8 64-bit).
Windows 8 Virtual Machine
The following screen will ask you to set a RAM size. As a minimum, Microsoft recommends 1GB for the 32-bit version and 2GB for 64-bit. Were heeding that advice, but if you want to try scraping by with less, you can always reallocate more memory to the VM later.
Assuming this is your first VM youll have to choose "Create new hard disk" on the following screen. In doing so, youll be asked to pick a format. You can leave VDI (VirtualBoxs own format) selected unless you want to run the VM with other virtualization software.
Windows 8 Virtual Machine
Unless you have a specific need for defining a fixed size virtual disk - unlikely if youre reading this guide - youre fine with a dynamically allocated disk. This will expand your virtual disk as the virtual machine needs additional space instead of starting at the larger size.
By default, the virtual disk will be created in C:UsersUSERNAMEVirtualBox VMs. If your C: drive is short on space or if you simply want the VM stored elsewhere, you can set it now. My C: drive is an 80GB SSD, so Im creating the virtual disk on a secondary HDD.
Windows 8 Virtual Machine
It cant hurt to glance over the settings summary before you proceed, but seemingly anything can be changed later. If youre satisfied, click Create. Assuming you werent met with any errors, you just created a virtual machine -- albeit one without an operating system.
Wait. What about Windows 8?
Youre only moments away from installing Windows 8. Right click your new VM and open Settings. In the left column, click Storage > Empty (under IDE Controller) > the CD/DVD icon (under Attributes) > Virtual CD/DVD disk file and navigate to the Windows 8 ISO.
Windows 8 Virtual Machine
Windows 8 Virtual Machine
Once you see the Windows 8 ISO attached under the IDE Controller, click OK to exit Settings. Now you should be able to launch your virtual machine and begin a standard Windows installation. If youre familiar with that, you shouldnt need this guide any further.
Youll be prompted to set your language, time and currency format, and input method. Youll also have to supply a product key (DNJXJ-7XBW8-2378T-X22TX-BKG7J). Agree to the terms, choose a Custom setup and install Windows 8 to the only unallocated space.
Windows 8 Virtual Machine
The installation took about 20 minutes on my system. Youll eventually be asked to choose an interface color, a PC name and other such customizations. After playing a round of Twenty Questions, setup should complete and youll see the Windows 8 desktop.
Son of a... this wont work!
Windows 8 Virtual Machine
If you meet the minimum system requirements, you shouldnt encounter any issues. Its worth noting that while your processor might support virtualization, the feature could be disabled in your system BIOS. Feel free to seek help in the comments
Windows 8 Virtual Machine
I havent had any performance issues running Windows 8 with a single CPU core, but you can dedicate more cores in the VM settings window (System > Processor). Likewise, you can allocate more VRAM, tweak the network adapter and configure shared folders.

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Wednesday, November 9, 2016

Router Configuration

Router Configuration


Tutorial: Router Configuration

So far we have only used Guarddog to protect a single workstation (i.e. the computer Guarddog is running on), but as many people know a computer running Linux can also act as a fantastic router for connecting multiple networks. In this tutorial we will go through how Guarddog can be used on a gateway machine to protect a LAN from the internet.

Important

Guarddog only supports router configurations on machines running Linux kernel series 2.4 or later with iptables.

Anatomy of a typical LAN connected to the Internet


A typical router configuration with Guarddog running on the router machine.
The diagram above shows the network configuration of a typical LAN connected to the Internet via a Linux based system acting as a router. The LAN that we wish to protect is on the left side of the diagram. The internet is shown on the right side. All communication between the LAN and internet passes through the gateway machine which is marked by the dog. Guarddog runs on the gateway machine. The most important aspect of this setup from a security point of view is that all of the network traffic between the LAN and the internet passes through one machine: the gateway. This provides us with an obvious "choke point" that we can place the firewall on to filter the network traffic.
The diagram also shows the zones that we will setup in Guarddog.

"Repeat after me: Guarddog is a firewall"

There seems to be a bit of confusion surrounding the function of a firewall versus the task of packet routing. Firewalls act as network traffic filters. Filtering and blocking unwanted and dangerous network traffic. They are security devices. Features such as routing and IP masquerade are not primarily security devices. They are advanced networking features.

Note

This misconception arose because in the past on Linux, before kernel series 2.4, the networking sub-system was such that it wasnt possible to separate advanced routing functionality from normal firewall functionality. This lead to firewall programs that also included direct support for advanced routing features such as IP masquerade and port forwarding for example.
Guarddog is a firewall and is not used for configuring networking features such as IP masquerade and routing. These networking features must be configured using a different program.

Tip

Guidedogis a user friendly utility for configuring advanced networking features and is designed to work along side Guarddog.

Configure Routing and Network Settings

Before we continue, you should go and configure the routing setup for your machine and confirm that it is routing/masquerading network traffic as expected. To make the task of debugging your gateway configuration easier, you can disable Guarddog by checking the Disable firewallcheckbox on the Advanced tab and then applying the changes. This will allow you to test your routing setup separately without Guarddog blocking any test traffic.

Warning

I strongly recommend that you do not test your network setup while connected to a hostile network like the Internet. Attach a machine to the network card that you plan to connect to the internet and give it an IP address so that it can act as a pretend Internet.

Teaching Guarddog to Allow Traffic to/from your LAN

If you configured and tested your routing and network settings with Guarddog disabled, enable firewalling in Guarddog again and apply. If all is going well then you will find that your LAN is once again totally cut off from the internet. Guarddog has a fail-safe, "what is not explicitly permitted, is denied" design. What this means in this situation is that since Guarddog hasnt been told to allow traffic from your LAN out to the internet, or visa versa, it will assume that the traffic should be blocked. This is intended to make it easy to get a secure configuration (even if it is too secure) and difficult to have an insecure configuration.
The way we specify to Guarddog that computers on the LAN are allowed to access computers on the Internet is by using zones. We simply create a zone to hold the addresses of all of the computers on our LAN and then specify that this zone is connected to the Internet, and probably to the Local zone also, and then go to the Protocols tab and tick on whatever protocols should be allowed between the LAN and the Internet.

Step by Step

Go to the Zone tab and create a new zone and call it "LAN". In the Zone Addresses list enter the IP addresses of the computers on your LAN. The address list understands several notations for addresses and can also accept whole network blocks. If you are running an IP masqueraded network using the 192.168.1.0/255.255.255.0 private address space, you can enter the whole block into a single address line using 192.168.1.0/255.255.255.0 format or the shorter 192.168.1.0/24 format.
Next, go to the Connection list and tick Internet and Local to specify that your LAN zone should be connected to the Internet and Local zones.
Now, go to the Protocol tab and make sure that Protocols Served from Zone: is set to Internet. In the list of protocols below you should see a column of check boxes for the Local zone and another column for the LAN zone. Just like when we were turning on protocols for the local zone in the first tutorial, we can do the same for the LAN zone. Tick the list of protocols that machines in the LAN zone should be able to use with the Internet.
When you are ready, apply the changes and see if your machines on your LAN can access the internet. Thats all there is to it.

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Friday, October 21, 2016

Wireless Router Configuration

Wireless Router Configuration


Wireless Router Configuration.... Step by Step Tutorial

January 4, 2013 at 1:29am
  1. Type 192.168.0.1 or the IP address provided at the bottom of the router in the address bar and press ENTER. Then type default username and password provided at the bottom of the router. Now click on QUICK SETUP menu, the below screen appears. Click NEXT.
  2. Now select DYNAMIC IP and click NEXT.
  3. In MAC clone option, select second option i.e. “No”, then click next.
  4. In the Wireless setup, ‘Enable ’the Wireless Radio, select the Network Name or SSID (this name is displayed in your Laptop, Phones, etc.), select your region or country, set the channel option to AUTO, Mode to 11bgn mixed, channel width auto. Then in wireless security option, select WPA-Personal/WPA2-Personal. Type the password (As you want) and click next.
  5. After the above process, the setup is complete. Now click on REBOOT to reboot the router.
  6. Your WiFi router is now configured.
Note: the above example has been set with a TP-Link WiFi router as a sample...In most wireless routers the steps are same. If it doesnt help you ask us for a complete pictorial step by step information.
Alternatively, you can visit us at our Maitighar office and we would configure it for you for FREE.

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