Here is something interesting for users of Ubuntu. If you are a Linux user but liked the look of Windows 7, here is an opportunity for you to get the interface like Windows 7 on your Kubuntu OS.

KDE-Look.org has released a package for Kubuntu transformation that can make "Kubuntu 9.04" looks like Windows 7 and in some areas to work like Windows 7.

Kubuntu Windows 7



features:

* Vistar7 color scheme
* Vistar7 plasma theme
* Redmond Vista - Normal decorator theme
* Win7 Icon theme
* Aero mouse theme
* Windows 7 like a splash screen
* All Windows 7 sound themes
* Windows 7 wallpapers, including beta wallpapers
* Segoe UI, Calibri and Cambri fonts
Windows 7 * Default user picture

Kubuntu Windows 7

How to install:

1. Make sure your computer is connected to the internet.

2. Open the console in Transformation Pack directory.

3. chmod + x install.sh

4. sudo. / install.sh

5. login with vistar7.

Download Windows 7 Transformation Pack Kubuntu:


HERE

A couple of weeks ago, Nick tried to convince us that we should all be using Macs. But why would you want to use a Mac (or a PC) when you could have an operating system that:

• Is free
• Does not slow down after a while and limit your productivity
• Does not need extra antivirus protection besides regular updates
• Has tens of thousands of programs available for free
• Has a vigorous community who are willing to help you solve any problems you might have?

That operating system is Linux. And I think that it is high time that more bioscientists got to know Linux so I have written this article to help YOU do so.

Linux is not (just) for computer geeks

You have probably heard of Linux. And you might think that it is complicated stuff, reserved for the bioinformatics geeks down the corridor. But this is no longer true.

Since emerging from a “garage project” run by Finnish software developer Linus Torvalds, Linux has benefited from the efforts of thousands (or tens of thousands) of developers who have built it into an extremely powerful operating system with a rich collection of free software to fulfill any requirement you might have.

Best of all it is a free, open source and community supported operating system that can be run right on the computer you are using now, with no need to remove your favorite operating system (be it Windows or Mac).

And before you ask if it is any good, what do you think most of the world’s top supercomputers run: OSX, Windows or Linux? The answer is here!

Know your distros

You don’t have to go to a computer shop to get Linux. It is available for free download from various websites in the form of distributions (or “distros”).

A variety of distros are available and the differences between them are in the types of software that comes packaged with the operating system. Many are specialized for specific tasks like graphic design, sound mixing/editing or performing scientific work (e.g. calculations or DNA alignments). You can find more information about distros here.

I recommend you try Linux out and see if it is better for you than the commercial operating system you are using now. I think you will be pleasantly surprised.

But where do you start? Here’s where:

Explore the power of Linux on your current machine without changing a thing

The easiest way of exploring Linux is to pick and download a “live” CD/DVD image, which can be burned onto a CD or DVD, inserted into your drive and after a restart you’ll have a basic, fully set up and working Linux environment without any alterations made to your computer.

And don’t worry, if you remove the disc from your drive and restart the computer, your old Windows or Mac OS will boot up as normal.

For first timers I’d recommend Ubuntu because this distro is compiled to be easy and convenient to use. But if you are feeling adventurous, there are many other examples of â€?liveâ€? distros here .

But be warned the live CD/DVD approach will not show you the full power of Linux. Everything will be a bit slower because it has to be loaded and unpacked on-the-fly from a slow optical disk!

Installing Ubuntu Linux on your current machine

If you like what you see, you can then install Linux on your hard drive very easily. Here’s the official guide on how to get set up an up-to-date Ubuntu system.

For the impatient here is what you need to do:

1. Make a backup!

Whenever you are delving into the workings of your computer you should make a full backup of your hard drive. Better safe than sorry.

2. Download and start the installer
Most distros have very beginner-friendly installer, so you do not have to worry about this process at all. Ubuntu has such an installer so, again I’d recommend it for your first Linux experience.

Download the installer and burn it onto a CD or DVD. Then you will be able to start the installer by double-clicking on its desktop icon.

3. Resize your hard disk

Most likely you will set up Linux as a second operating system. In this case you’ll need to have at least 5-6 GBs of free space on your hard drive, which needs to be partitioned off from the rest of your drive. This can be easily done on-the-fly during the installation process.

A standard Ubuntu system needs at least 5-6 GBs of free space where you can create the Linux specific partition(s). It is best to have at least two partitions:

• A 5 GB ext3 partition. This should have “/” as the mount point. Don’t worry — all will become clear during the installation.

• A 1 GBÂ linux swap partition. This acts as the scratch disk, where Linux can use disk space as “virtual memory”. More information on partitioning, filesystems and mount points can be found here.

4. Choose your software

You can get all of the basics like a web browser, email clients, word processors, spreadsheets and media players by simply accepting (1 click!) the pre-selected, default set of to-be-installed packages from a huge list of available software.

If you need to have other programs on your computer than the default ones you can certainly select them in the installer as an option. As I mentioned earlier, there are a great number of bio-specific software packages out there that do great things, and they are all FREE.

There are too many to talk about here, so they will be the subject of our next article…. stay tuned!

5. If you ever need help, no problem.

If you have any problem you can even turn to the comprehensive online documentation and user forums for help. Since Linux and most of the programs built for it are open source which means that the core operating system and most of the utilities were born and brought up in a highly collaborative and open community so you should be able to find an answer to even the most difficult question.

As a reference you may want to bookmark this page: http://www.linux.org. If you like newsgroups check this list. Each distro usually has its own website where you can find documentation, help and user forums.

For Ubuntu users there is an enormous, separate site made only for user discussions. You can find it here. If you prefer books, a vast amount of literature exists on the subject, just check an online bookstore! And if you have a very specific problem (on Linux or anything else for that matter) don’t be afraid to use your favorite web search engine… it will help you a lot!

Network Time Protocol (NTP) provides algorithms and defines messages for the synchronisation of time clients to an accurate time reference. This article discusses how to configure a Linux NTP Time Server to synchronise time with an Internet based public NTP Server.

NTP server systems fall into two categories: primary reference servers and secondary reference servers. Primary reference servers use an external timing reference to provide time, such as GPS or radio clocks. Secondary reference servers synchronise with primary reference NTP servers and offer slightly reduced accuracy. Primary reference servers are designated stratum 1 servers, while secondary servers have a stratum greater than 1.

The NTP Distribution

The NTP source code is freely available from the Network Time Protocol web site. The current version available for download is 4.2.4. NTP is available for the Linux operating systems with ports available for Windows NT. Once the source code is downloaded, it should be configured, compiled and installed on the host machine. Many Linux operating systems, such as RedHat, offer NTP RPM packages.

Configuring NTP

The ‘ntp.conf’ file is main source of configuration information for a NTP server installation. Amongst other things, it contains a list of reference clocks that the installation is to synchronise. A list of NTP server references is specified with the ‘server’ configuration command thus:

server time-a.nist.gov # NIST, Gaithersburg, Maryland NTP server
server time-c.timefreq.bldrdoc.gov # NIST, Boulder, Colorado NTP server

Controlling the NTP Server Daemon

Once configured, the NTP daemon can be started, stopped and restarted using the commands: ‘ntpd start’; ‘ntpd stop’ and ‘ntpd restart’. The NTP server daemon can be queried using the ‘ntpq –p’ command. The ntpq command queries the NTP server for synchronisation status and provides a list of servers with synchronisation information for each server.

NTP Access Control

Access to the NTP server can be restricted using the ‘restrict’ directive in the ntp.conf file. You can restrict all access to the NTP server with:

restrict default ignore

To only allow machines on your own network to synchronize with the server use:

restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap

Multiple restrict directives can be specified in the ntp.conf file to restrict access to a specified range of computers.

Authentication Options

Authentication allows a matching passwords to be specified by the NTP server and associated clients. NTP keys are stored in the ntp.keys file in the following format: Key-number M Key (The M stands for MD5 encryption), e.g.:

1 M secret
5 M RaBBit
7 M TiMeLy
10 M MYKEY

In the NTP configuration file ntp.conf, specify which of the keys specified above are trusted, i.e. are secure and you want to use. Any keys specified in the keys file but not trusted will not be used for authentication, e.g.:

trustedkey 1 7 10

The NTP server is now configured for authentication.

Client Configuration for Authentication

The client needs to be configured with similar information as the server, however, you may use a subset of the keys specified on the server. A different subset of keys can be used on different clients, e.g.:

Client A)
1 M secret
7 M TiMeLy

trustedkey 1 7

Client B)
1 M secret
5 M RaBBit
7 M TiMeLy
10 M MYKEY

trustedkey 7 10

Essentially authentication is used by the client to authenticate that the time server is who he says he is, and that no rogue server intervenes. The key is encrypted and sent to the client by the server where it is unencrypted and checked against the client keys to ensure a match.

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Article Source:http://www.articlesbase.com/networking-articles/configure-your-linux-ntp-server-1366801.html

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track and accomplish all your goals. Coverage includes the following:
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Securing your server
Troubleshooting
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coverage for networking professionals working specifically in Linux environments.

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UNETSHA is a plug-in for extending security health check capabilities and interoperability with third-party endpoint security solutions on the Microsoft NAP platform. It enables more granular network access control in an enterprise-wide NAP implementation that includes heterogeneous network terminals such as Windows, Linux and Mac OS X.- Supports Windows Management Instrumentation (WMI) which is used in the management of the status, configurations and operational aspects of hardware and software in WindowsAdministrators can use the managed objects as NAP policy objects.Web-based Enterprise Management (WBEM) is used in Linux and Mac OS X.Administrators can use the managed objects as NAP policy objects.Provides APIs for different types of network access or communication in Linux and Mac OS X based terminals. Current and forthcoming ECs in Linux and Mac OS X can be integrated into the Microsoft NAP platform easily and with proven technology.- Policy Management based on User ID and Hierarchical GroupUNETSHA supports login ID based policy enforcement for exceptional cases, making NAP policy enforcement more flexible.- Flexible Policy EnforcementUNETSHA allows administrators to set the policy enforcement cycle once or periodically depending on the characteristics of the policies.- Hierarchical Group ManagementUNETSHA supports hierarchical group management so that the administrator can manage NAP polices based on the actual organizational structure of the enterprise.- Flexible Rule EditingScripts written in an IF (Condition) THEN (Action) ELSE (Action) format enable flexible rule editing to support administrational diversity, allowing you to abide by laws and regulations.- Included ECs: 802.1X Supplicant and DHCP ClientLinux and Mac OS X versions include NAP Agent with ECs for 802.1x-authenticated connections and DHCP-based IPv4 address configuration.

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PureLoad 4.0.2 Linux | 26,5 MB
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