Thursday 22 September 2011

How To Transform Ubuntu To Mac OS X

I have never owned a Mac, and I understand the desperate efforts of the people to get the feel of Mac OS. And this is one of the reasons users look for Mac OS X themes and Mac OS X transformation packs. So, if you are an Ubuntu user, and looking to transform Ubuntu to Mac OS X, then we bring you an easy way.
We would be using the software, Macbuntu which would help you transform it into Mac OS X. Internally your machine would work the same way, its just the graphics and display that would change. So, this post is more about using Macbuntu and tips to get the best of Mac on Ubuntu.
Once you have downloaded the source files of Macbuntu on Ubuntu, extract them. So, once you have downloaded them, copy those files to Computer > File System > tmp.
Now, open the terminal and fire the below command as it would extract the contents of the downloaded file.
tar xzvf /tmp/Macbuntu-10.10.tar.gz -C /tmp
The above command would actually create a new folder, tmp and would extract the contents to that location. Now fire the below command to enter to that location.
cd /tmp/Macbuntu-10.10/
And to install the files, run the installation file by running the below command.
./install.sh
If you have made the password settings, it would ask you to enter your root password. Once you enter it, it would start with the installation. While you are typing your password, you won’t be able to see any cursor, * or any other kind of symbol.
While installation, it might ask you to download and install additional files, which can be done by hitting the key, Y. Once it done with the installation process, you can check out with the changes which replicate the Mac OS X.
Because of any reason, if you wish to uninstall this Mac OS X transformation pack from Ubuntu, you can fire the below command.
cd ~/.macbuntu/10.10-2.3/ && ./uninstall.sh

How To Activate IPv6 On Windows XP

Stats say that within few months Internet would be done with all the IPv4 addresses. Although it doesn’t mean that Internet would stop working, but new websites will be having IPv6 addresses. Here is the complete guide to install / activate IPv6 on Windows XP.
Windows OS do offer with IPv6 Protocol but you need to activate it. We would help you with that part. And once you are done with that, your Windows XP becomes compatible to IPv6.
activate-ipv6-on-windows-xp

Enable / Activate IPv6 On Windows XP

  • Login to Windows as administrator
  • Open the Run command box by clicking on Start button or pressing Windows logo + R
  • Now open the command prompt by running the command, cmd
  • Now, type netsh and hit enter. This will take you to netsh prompt, netsh>
  • Now, type interface and hit enter. This will take you to netsh interface prompt, netsh interface>
  • Now, type ipv6 and hit enter. This will take you to netsh interface ipv6 prompt, netsh interface ipv6>
  • Now type install and hit enter
That  is it! It will now install IPv6 on Windows XP. To confirm the installation of this IP Protocol, run the command ipconfig/all on command prompt.

2 Best Ways To Record Video Chat On Skype

Skype is undoubtedly the best and the most popular way for video chat. And with its presence in Android and iOS other than Windows, Mac and Linux, it has surely become an amazing program for video chat.
Now if you are looking for ways to record video chat on Skype, then we have two easy ways for you which would help you capture the video chat sessions on Skype.

2 Best Ways To Record Video Chat On Skype

In order to install the plugins, you need to login to Skype. But if you want you can switch to invisible mode if you want. And before we get into much details of it, these are not different ways, infact both methods include use of Skype Plugins.
Once you login, navigate as Tools > Extra > Get Extras. This will launch the Extras Manager from where you can download the plugins.
In the search field, search for record video and you will find the results as VodBurner Video Call Recorder and Supertintin Recorder.
So install any of these plugins and you can start to record video chat on Skype. You can go with any of the above mentioned plugins and you are ready.
And while you are having a video chat on Skype, you can launch any of this installed plugin and and click on the record button to start recording the video chat on Skype

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How to Use the New File History Feature in Windows 8

Jealous of your Mac OS X friends and their great Time Machine feature? Windows 8 has a new feature called File History that works much the same way, giving you an easy method to restore previous versions of your files.
If you’re a Windows 7 or Vista user, you’ve probably already read about how to use Previous Versions, and this is similar, but works a lot better. By default File History in Windows 8 takes snapshots of all files in your Libraries, Desktop, Contacts, and Favorites every hour (although this can be changed to more frequently or less frequently) and keeps the snapshots forever (this can also be changed).

Setting Up File History

To get started with File History it first needs to be enabled. To enable it, launch the control panel from the new Windows 8 start screen.
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When the new Metro style control panel opens, scroll all the way to the bottom and select the More settings option.
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This will launch the classic control panel we are all used to in “category“ view. To get to the File History settings, select the System and Security link.
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If you look near the bottom of the list you will see an option that says File History, click on the link. This will bring up the settings for the File History feature.
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You now will either need to plug in a USB Drive (this can be either a thumb drive or an external hard drive), or you can specify a network location. If you plug in a USB Drive the “turn on” button will immediately become available. However to cover all the methods we are going to opt to choose a network location. To do this, click on the “Change drive” link on the left hand side to bring up the dialog where you can select the “Add network location” button. When the window opens, you can select the PC on which you wish to save your File History.
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Once you’re done and you have clicked on the OK button, you will be taken back to the File History settings screen. Simply click the “turn on” button to activate File History.
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When you click on the “turn on” button a message will pop up asking you if you wish to recommend the location that you used for File History to other users in your HomeGroup as a place to save their File History. If you have a HomeGroup and want to have a central location where all users in the HomeGroup can store their File History you will probably want to say yes, otherwise it’s OK to choose no.
sshot-9
Once you have selected the option which pertains to your setup, File History will now be set up and working. The one thing you may want to configure is the option that allows you to take snapshots more regularly than every hour and you might also want to configure how long copies are kept for. To do this hit the “Advanced settings” link on the left hand side.
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Once you have configured the settings to match your needs you are ready to go.

Restoring A Deleted File Or Folder

In this example I have 1 file in the Documents Library called “My Plans To Take Over The World”, and I am going to accidently delete the document and restore it using File History.
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I’ve now deleted the file permanently by doing a Shift-Delete as I don’t think I will be taking over the world anymore. I have also created two new files called “New File 1” and “New File 2”, making the library look like this:
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A few minutes later, my partner in crime phones me and tells me that he is free this week, and it looks like a good week to conquer the world. The problem is that I just deleted my plan. Luckily I had set up File History a while back and can recover the document.  So basically what we need to do is restore the file that we deleted but we don’t want to effect any files that we may have edited since then, such as “New File 1” and “New File 2” . To do that we to that we select the File History button on the ribbon.
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This will launch the File History browser, and give you all the different versions of the Documents Library.
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If I scroll back to Version 8 of 10 using the arrow that’s pointing back (left), you will see that my document called “My Plans To Take Over The World” is there. I can then select it to choose it for restore.
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Once we have selected the file that we want to restore, we can click on the Blue Orb (Center Button) to restore the document. File History will launch the folder that you are busy working with and show you that the file is now there.
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To Restore A Previous Version Of A File

In this example I only have 1 file in my Documents Library called “My Plans To Take Over The World”. The document looks like this.
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I now make changes to the document and save it. So it now looks like this.
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A few hours later I realize that I like the the original plan better, so to get the older version back I can click on that specific document and click the File History button.
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This will allow us to scroll through Versions of the document while viewing its contents.
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If we scroll one version back.  We can see that we can see the old version of the document.
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When you click on the Restore Orb, you will be asked what you want to do.
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That’s all there is to it.

Using the Touch Command

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Every file on your computer has a timestamp, which contains the access and modification time for a file, but did you know that you can change that timestamp? Here’s how to do it.

Using the Touch Command

The “touch” command is available pretty much anywhere that you can get the Bash shell, which includes Linux or Windows with Cygwin installed. Here’s the options for the command:
Tocuh options table
If you want to check the file timestamp, you can do so with this command:
stat file
Obviously you should make sure to replace “file” with your file’s name.

-a and -m options

These two options update the access and modification time respectively. Using them should be no problem at all. Here is the syntax:
touch –a file
This will update “file”s access time to the current date and time. You can replace the (-a) options with (-m) to do the same but for the modification time. If the file doesn’t exist, an empty file with the same name will be created in the current directory.

-c option

If you use this option, touch won’t do anything at all if the file specified doesn’t exist. Look:
touch –c omar
In the above example touch will do nothing as “omar”, the file not the person, doesn’t exist.

-r option

This option might come in handy if you want to copy a timestamp from a file to another file. Like so:
touch –r file1 file2
Where “file1” is the reference file and “file2” is the file that will be updated. If you want to copy the timestamp to more than one file you can provide them all in the command as well and they will be created simultaneously.
touch –r file1 file2 file3 file4

-d and –t options

Both (-d) and (-t) options do the same thing, which is setting the same arbitrary timestamp for access and modification times. The difference is that (-d) uses free format human readable date, this means that you can use “Sun, 29 Feb 2004 16:21:42″ or “2004-02-29 16:21:42” or even “next Thursday”. This option is complex to fully describe it here. On the other hand (-t) uses a simple stamp that you are confined to use. The stamp is [[CC]YY]MMDDhhmm[.ss]. [CC] is for century and you may ignore it and ignore the seconds as well. If you ignore [CC] the command will substitute it depending on what you enter as year. If you specify the year with only two digits, then CC is 20 for years in the range (0~68) and 19 for years in (69~99).
touch –t 3404152240 file
touch –t 8804152240 file
In the first command the file timestamps will be set to: 15th April 2034 10:40 PM. While the second command will set it to: 15th April 1988 which is in a different century. If no year is specified it will be set to the current year. Example:
touch –t 04152240 file
This will set the timestamp to 15th April 2011 10:40 PM because it is 2011 by the time of writing this article.

Combining Options to Set Arbitrary Individual Access and Modification Times

The (-a) and (-m) options only updates the timestamps to current time and the (-d) and (t) options sets both access and modification timestamps to the same time. Assume you only only want to set the access time to the 5th of June 2016 at 5:30 PM, How would you do that? Well, you’ll use (-a) and (-t) to both set an arbitrary time and apply it only for the access timestamp. Example:
touch –at 1606051730 file
or
touch –a -t 1606051730 file
And if you want to do the same for the modification time just substitute (-at) with (-mt). It’s easy.

Creating Empty Files

The second and most famous usage of the touch command is creating empty files. This might sound stupid, why would anyone sensibly overload his computer with empty nonsense files but it really comes to use when, for example, you are working on a project and want to keep track of progress with dates and times. So you’ll have a folder with the project’s name and use touch to create empty files with the events as names of file. In other words, you can use it to create logs. Example:
touch ~/desktop/project/stage1_completed
Now you have a file signifying the completion of stage 1 of the project at the time of creating this file and you can see this time by issuing the command:
stat ~/desktop/project/stage1_completed

You can find touch useful in different ways depending on what you do. If you know more good uses for touch then share it in the comments or read more about the touch command by visiting its man page online or in a terminal by issuing the command “man touch”.

Next-generation firewalls

If there is a simple way to describe the difference between a next-generation firewall and a traditional firewall, it is "more detailed controls." In firewall terms, people talk about "widening the 5-tuple."

Firewall managers like to use the term "5-tuple," borrowing "tuple" from the world of databases. The "5-tuple" means the five items (columns) that each rule (row, or tuple) in a firewall policy uses to define whether to block or allow traffic: source and destination IP, source and destination port, and protocol.
For example, to allow traffic to a Web server at 1.2.3.4 from the Internet, a typical 5-tuple would include source IP and port of "any" (or "*"), destination IP of 1.2.3.4, destination ports of 80 and 443, and destination protocol of TCP — with an action of "allow." There's variation in every firewall on the market, but at the core of every one you'll find a set of rules that look more-or-less like that: 5-tuples.
Next-generation firewalls "widen" the firewall rule base by adding elements (columns) to each 5-tuple, starting with "application" and "user identity" and perhaps going wider still, factoring in other elements such as "reputation."

Essential open source tools for Windows admins

You might imagine that the best place to go for improving your Microsoft server-side experience is to the mothership itself. In many cases, you would be right. But the truth is there are a meaningful number of open source tools that go above and beyond what Microsoft has to offer in support of Windows Server, Exchange, SQL, and SharePoint. Many of these alternatives provide -- for free -- more powerful capabilities than what you'd get with third-party retail products.
Microsoft itself has acknowledged this fact, facilitating the availability of open source tools for Microsoft admins through its CodePlex site. Microsoft, too, can be relied on for a few clear winners when it comes to free tools.

All in all, it's never been a better time to experiment with open source tools in your Microsoft environment. From networking troubleshooting to security to performance analysis, we've compiled a list of the top open source tools for your Windows-based systems. Don't see a favorite? Feel free to highlight it in the comments below.
Essential open source Windows admin tool No. 1: Wireshark
Network troubleshooting is a real art, one that requires solid training and years of hands-on experience. But a tool like Wireshark helps ease traffic analysis, thanks to many powerful features. Just one look at this free software-based protocol analyzer's color-coding features and you'll see how its superior usability makes Wireshark a worthwhile tool for any Microsoft shop. 


Essential open source Windows admin tool No. 2: AMANDA
Admins looking to ease the pain of backing up Windows-based systems should check out AMANDA, aka Advanced Maryland Automatic Network Disk Archiver. AMANDA provides the ability for an administrator to set up a single master backup server that can support both Windows desktops and servers over the network to a variety of media, including tape drives, disks, or optical media.
ZMANDA maintains and supports the freely available AMANDA, as well as ZMANDA Recovery Manager for MySQL. It also provides network and cloud backup services that it sells commercially. 

Download: www.amanda.org

Essential open source Windows admin tool No. 3: MailArchiva
Email archiving is front and center in Exchange 2010, thanks to the increase in compliance regulation enforcement across the industry. But for those who are not yet using Exchange 2010, MailArchiva provides a worthwhile means for bringing compliance to Exchange 2000/2003 and other mail servers, such as Postfix, Sendmail, Qmail, iMail, and Lotus Notes.
MailArchiva comes in both an open source and an enterprise flavor. To see a list of features and how the two editions vary, browse the MailArchiva site


Essential open source Windows admin tool No. 4: Exchange 2010 RBAC Manager
Exchange 2010 RBAC Manager is a great tool for admins working with role-based access control and Exchange. RBAC Manager (aka RBAC Editor GUI) helps overcome the lack of a GUI tool to work with the new role-based administration side to Exchange, enabling admins to connect, whether or not you're a PowerShell master. The tool is written in C# and uses PowerShell behind the scenes to allow you to create and manage roles in your Exchange 2010 environment. 


Essential open source Windows admin tool No. 5: Core Configurator 2.0 for Server Core
Offering a command-line version of Windows Server 2008 and Windows Server 2008 R2 at installation was a great idea. With its light footprint, it allows a small attack surface as well. The only problem? It required administrators to crack open command-line books to configure their servers. This free tool provides a GUI method for managing tasks. 


Essential open source Windows admin tool No. 6: AutoSPInstaller for SharePoint 2010
Anyone who has ever installed SharePoint knows that the SQL databases created are a mess in terms of naming, resulting in large GUID databases titles that are completely inconsistent. In contrast, AutoSPInstaller utilizes a variety of scripts to install SharePoint and makes sure database names remain clean in the process. 


Essential open source Windows admin tool No. 7: OCS Inventory
If you need a cool tool for locating all the devices connected to your network and what software and hardware you have installed on your systems, then OCS-NG is the one for you. It requires you install the OCS client inventory agent on your systems; you can then pull all that information into a repository that's easy to visualize and search. 


Essential open source Windows admin tool No. 8: UltraDefrag
UltraDefrag is a tool for Windows that can defrag system files, registry hives, and the paging file. It's continually updated to ensure improvements in performance.
UltraDefrag is fully compatible with Windows NT 4.0, Windows 2000, Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and all of the 64-bit editions of Windows. It's a valuable addition to any Windows environment. 


Essential open source Windows admin tool No. 9: Nmap for Windows
Originally a Unix-only tool, Nmap for Windows has been an important security resource for Windows shops for more than 10 years. This security scanner and network mapper can also be used to perform network inventory, manage service upgrade schedules, and monitor host or service uptime. It supports Windows 7, Windows Server 2008 and 2003, Windows Vista, and Windows XP SP1 and later. 


Essential open source Windows admin tool No. 10: Zenmap
Zenmap is a cool tool for mapping a topology of devices connected to your network. This security scanner works off of Nmap, providing an interactive, animated visualization of hosts on a network, configured in rings. Click on a host and it moves to the center of your network topology, giving you the ability to easily trace the host's various connections. With Zenmap, information regarding potential vulnerabilities becomes that much easier to pinpoint, ensuring your firewalls and routers are working correctly.
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