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DigiKam 4.4.0 Review & Ubuntu Installation

It’s been a while since I had a look at DigiKam, and even though I’m not much into using a specialized application for organizing and keeping track of photos, I decided to have a look at the state of this popular and feature-complete photo manager for KDE.

 

Full article

 

Linutop OS 14.4 is released

New Linutop OS 14.04 for PC

Linutop announced the latest version of its Operating System 14.04 for PC and Intel NUC PC:

Linutop OS is an optimized version of Ubuntu XFCE LTS 14.04 including up to date Linux drivers and major softwares VLC 2.1 , Firefox 32, Libre Office 4.2 in the smallest package (< 1GB)

Linutop Security Lock: A simple solution for Secure Desktops in public spaces

The system can be locked into read only mode, preventing alterations by viruses or other mishaps. Its ability to recover its initial state at each startup is key to minimizes maintenance costs.

IDEAL for schools, libraries, associations that want to provide a desktop in a public space without needs for maintenance.

Linutop Kiosk software :

-Internet Kiosk: Allows to easily setup an internet/intranet web kiosk

IDEAL for hotels that want to provide an internet cafe OR stores/libraries that need to provide online catalog browsing

-Display Kiosk: Allows users to configure a playlist of Images, Web Pages, URLs, Video, folders, PDF  and sounds files with an intuitive interface, in order to  display the media in full screen.

IDEAL for information, orientation, advertising

 

Linutop OS 14.4 complete details and download are available at: http://www.linutop.com/software.en.html

 

 

Why To Use Cloud Hosting Technology?

Cloud hosting? It's a buzz-phrase, it's popular and appears to work – but is that enough justification for you really to utilize it? Cloud hosting has its pros and cons, just as the traditional IT solutions it replaces. Read the list below to see if oahu is the right solution for you.

 

Actually, What Is Cloud Hosting?

 

First of all, let's make sure most of us have exactly the same perception of ‘cloud hosting '. The concepts of cloud hosting and computing aren't new. You can consider ‘cloud' as a kind of shorthand to explain a network of computing resources(typically servers). A user connecting to the ‘cloud' via a terminal, a PC or a mobile device like a smartphone can utilize the resources in the cloud to store data and run software applications on the servers in the cloud. To mix metaphors a little, the cloud is just a black box: as long as do you know what you place in and that which you escape, you do not have to be concerned about the way the cloud works inside. Physically however, the computer files and commands you send to the cloud all go to one or more real servers somewhere and connected to the network (very often the Internet) that you too are accessing. The recent development in cloud hosting that folks speak about today has come about as more and more service providers have made online computing resources available as services to consumers and enterprises.

 

What are the Fortes of Cloud Hosting?

 

Cloud hosting services that are available over Internet frequently have the next advantages:

 

Financial Flexibility. You rent a site from somebody else rather than investing in your server. Which means you pay lower monthly charges (some cloud hosting is even free), rather than committing a more substantial quantity of capital. In many cases, cloud hosting can be more cost-effective. However, you must always compare the sum total startup and ongoing costs of all of the solutions you're considering (cloud or other) to see what's best for you.

 

Universal Access. You can connect to the cloud hosting service anywhere you can connect to the web. With broadband, 3G and Wi-Fi access points, meaning pretty much everywhere.

 

Reliability and Resilience. Service providers have extensive server networks and can host multiple copies of your data in different locations. If you have a problem with a server in one single place, your data can be recovered from another server elsewhere on the network.

 

Scaling of Resources. For a person person or company, there's typically no limit to the total amount of storage space or power for applications that may be made available. Cloud hosting providers operate huge, networked data centers giving ample room for growth for only the largest customers.

 

Up to Date Backup and Encryption Software. Cloud hosting services run current versions of software and a number of them also provide ‘strong encryption ', which makes it practically impossible for someone minus the encryption key to hack your data. However, see below for more information.

 

Service Choice and Flexibility. Because you rent a site rather than invest in your server, you can even move your data from one cloud hosting provider to some other if you obtain another hosting deal you prefer.

 

Eco-friendly. Cloud resources are also shared between customers (with appropriate security), making total power consumption per customer less than if each customer had to utilize its own individual private server.

 

                    

Please check at http://www.thesagenext.com if you are looking for cloud hosting.

 

 

 

 

A brief tour of new features in the management console for UCS 4.0

UCS 4.0 will be released in November. The second milestone, released last week, already includes the completely redesigned and restructured Univention Management Console (UMC).

People who are interested in finding out more about the new design and the motives behind it, are invited to read the article from Alexander Kläser, product developer at Univention, who explains it all in there.

The second milestone of UCS 4.0 is available to download for anyone and feedback for the improvement of this next major release is more than welcome.

http://blog.univention.com/new-features-umc-ucs-4-0/

 

For beginners - 3D assisted drawing

Have just tested a simple idea to make drawing easier. Basically I used the 3D software Blender to make a simple model of what I was going to draw. The model as in the screenshot below consists only of primitives and is very crude. First I thought of using an armature in the software but this was unnecessary. Just move and rotate the various body parts. Since I’m not trained at all in drawing I just put a piece of paper over screen and begin following contours. Then it was easy just to correct the drawing.

 

sBlenderDino

 

Blender 3D assisted sketch of the dino.

sDino

s

 

 

Interbrand top-100, Huawei becomes the first Chinese brand on the list

Inter-brand released the 15th annual Best Global Brands on Oct. 9, and a Chinese company broke into the list for the first time throughout history.

Huawei, a Chinese telecommunications and transmission network equipment manufacturer and the world's third largest smartphone provider was listed No. 94 and is one of five new entrants on the Best Global Brands ranking this year. Maybe Huawei is more of a household name in Asia than in Western markets, but it has got its popularity and reputation globally with its rapid growth and long-term investments and earned its place in this year' Best Global Brands ranking.

Focused on innovation and aggressive globalization, Huawei strategically utilizes its resources in accordance with market demand. Huawei is quickly becoming one of the world’s largest telecommunications equipment manufacturers with 65% of its revenue coming from outside of China.

Proved its strategy is prosperous, this transnational networking and telecommunications company is rapidly becoming the market leader in Latin America and Central Asia, and a major player in Canada. With the new marketing approach--getting closer to more customers which is to support its ambitions, the brand has recently launched a more consumer-friendly face. Its work that cooperated with telecom operators around the world is being leveraged as a way to show how much impact Huawei has on the world they live in. with these customers in mind, Huawei plans to eliminate 80% of the low-cost Mobile device this year. The goal is to develop products to meet consumer demand, instead of meet the minimum costs and operational specifications. Huawei's star product line—Ascend is clearly shows that the company is trying to change their image in the mobile phone market, transform low-cost alternatives into a more advanced one. With smart phone sales volume go up since the first quarter of 2014, and the current 20% global market share is in the best brands place, Huawei is at its full speed and making its mark to the world.

 

Computing from a browser's point of view

ChromeOS is starting to grow on me. Though it does not have the makings of a traditional desktop system, it is quite amusing to use. I have read and heard lot of news surrounding google's browser OS system, though never used it. To my surprise, I spotted the system being used at a near-by town library.

Time for an adventure. I did not plan on spending much time on the machines, just testing. Perhaps is does have a hypnotic effect; whenever I travel to the library, I would pray a few systems were available.

Just a reminder, ChromeOS is a browser-based operating system, designed by google, that uses a web browser as the user interface to access only the internet and take advantage of web apps. The applications used on this OS are provided through a browser or from the google playstore. Imagine a general purpose desktop with only a web browser installed. The activities common to a desktop are now executed in your browser.

When I booted one of the systems, I was presented with a sign-in screen. Once signed in, the chrome browser automatically executes. Closing the browser signs you out of the session.

The system had a launcher panel with the most used web applications, chrome, gmail, google drive, and youtube. Clicking any one of these launchers opens itself in a new browser tab. You can also change the position of the web apps by clicking and holding one of the apps and drag them to a new location on the panel. At the beginning of the panel is a start-menu button. It lists all the installed web apps with a few other programs like a file browser, a google search app, and google's playstore, like the ones installed on an android device.


What really caught my eye was the size of the computer hardware ChromeOS was installed on. All I saw was a small, black box-shape device. It was small enough to fit in your pocket. It was manufactured by Asus and only used USB ports for  device integration. Even the monitor was connected via a USB.


If your most important apps could be accessed via a browser, then your computer would be nothing more than an Internet terminal. You might even call your web browser a graphical command-line interface that allows you to click commands rather than typing them.

Cloud computing is accessing computer services from the Internet through a browser. A type of computer service accessed from a browser is known as SaaS(software as a service). Rather than installing software on your local computer, it is accessed only from a browser. Actually one of the early forms of browser-based software was the web-based email client. Never thought gmail and yahoo would have siblings. The software can either be accessed freely or with a cost. For computer services that require cost, check out AWS(Amazon Web services) http://aws.amazon.com/, or the open source cloud operating system “Openstack” http://www.openstack.org/software/.

I like to have the best of both worlds; own a traditional desktop and have it take advantage of web-based computing. When online, I utilize the web apps. Offline, my locally installed applications keeps me productive.

ChromeOS is a system that takes advantage of SaaS. It is also straight forward. If you spend most of your computer activities on the Internet, no need for a full blown desktop system. You just need something electronic that has an Internet browser.

“As people use more and more web applications, the operating system becomes less important and it makes no sense to pay for it. The desktop mail client could be replaced by Gmail, the calendaring application could be replaced by Google Calendar, the office suite has lightweight alternatives: Google Docs and Zoho, it makes more sense to use an online feed reader like Google Reader, your scientific calculator is less powerful than Wolfram Alpha and you'll rarely need a video player when you have YouTube, Hulu and other video sites” (Alex Chitu)

(Alex Chitu , http://googlesystem.blogspot.com/2009/07/google-chrome-operating-system.html)

This quote came from a blog written about chromeOS back in July of 2009 by Google’s CEO Sundar Pichai:

“Speed, simplicity and security are the key aspects of Google Chrome OS. We're designing the OS to be fast and lightweight, to start up and get you onto the web in a few seconds. The user interface is minimal to stay out of your way, and most of the user experience takes place on the web. And as we did for the Google Chrome browser, we are going back to the basics and completely redesigning the underlying security architecture of the OS so that users don't have to deal with viruses, malware and security updates. It should just work. Google Chrome OS will run on both x86 as well as ARM chips and we are working with multiple OEMs to bring a number of netbooks to market next year. The software architecture is simple — Google Chrome running within a new windowing system on top of a Linux kernel. For application developers, the web is the platform. All web-based applications will automatically work and new applications can be written using your favorite web technologies. And of course, these apps will run not only on Google Chrome OS, but on any standards-based browser on Windows, Mac and Linux thereby giving developers the largest user base of any platform” (Sundar Pichai)

(Sundar Pichai, http://googleblog.blogspot.com/2009/07/introducing-google-chrome-os.html)

Google is very innovative and very proactive. There is something working behind the scenes that inspired such developments like ChromeOS, AWS and Openstack. Perhaps, what we are starting to see is a new operating system in its infant stages, the browser. I have used some open source browsers that act like file managers when installed on a GNU/Linux operating system. From that browser, you can get a view of everything stored on your hard drive.

Cloud computing is still growing but gaining lots of interest. It is great to have access to the latest technology. Yet it is a must to learn how and why the technology was invented. Then look where it is going. There has been talk about an Internet based operating system in the past. I was trying to imagine what that would look like. Perhaps I don’t have to imagine anymore.

References:

http://googleblog.blogspot.com/2009/07/introducing-google-chrome-os.html

http://googlesystem.blogspot.com/2009/07/google-chrome-operating-system.html

http://static.highspeedbackbone.net/pdf/Chrome%20OS%20User%20Guide.pdf

 

 

How To Configure SSL In Tomcat

To secure the communication to and from your Tomcat servlet container you should use SSL. Usually there's an Apache or Nginx in front of Tomcat to serve external clients' request and this web front server is also supposed to provide SSL connectivity. However, this is not always the case and Tomcat may be accessed by clients directly so the SSL should be installed on Tomcat.

Furthermore, even if there's a dedicated frontend, the communication between that frontend and Tomcat should be also secured with an SSL, especially if the two servers are in two different networks and there is a chance of network sniffing. The latter is not only a good security practice but often a requirement such as for the PCI SSC Data Security Standards.

Read more at Website-security.info...

 

Whether the SSN4EGS411 and SSND00EGS412 are the same board?

In Huawei optical transmission boards, SSN4 is equal to SSND00, and generally speaking, the same boards that display different product name have the same feature code, like SSN4SL6402 and SSND00SL6402. But When it comes to Huawei service board SSN4EGS411 and SSND00EGS412, some customers are misguided and some customers are asking that whether we delivered the wrong model of board to them, because In huawei BOQ, it is show as SSND00EGS412, here version code is ND00, feature code is 412; But in board front panel, it show as SSN4EGS411, here verison code is N4, but feature code is 411. Actually they are the same board.
To avoid this confuse, we suggest when ordering a EGS4 board, it better to comment with a optical specification behind like: (1000BASE-LX).

For example, when you are about to order a SSN4EGS411 board, you must select maybe you will choose configuration(slots and transmission range etc.) like as follow:

111

After you selected the configuration of this board, it will appear message box like this:

333

The product name shows as SSND00EGS412. But the product name that shows on the board is SSN4EGS411.

222

So when you buy this model of board later, you won’t be confused again.

For more information about Huawei optical transmission boards or buy Huawei transmission network equipments, please visit our site or contact with: This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

 

TLS encryption and mutual authentication using syslog-ng Open Source Edition

Collecting log messages is an essential part of managing, maintaining, and troubleshooting IT systems. Since your log messages can contain all kinds of sensitive information, you should make sure that they are kept safe. The easiest way to protect the log messages as they are transferred from your clients to your logserver is to authenticate and encrypt the connection between the client and the server.

This tutorial shows you step-by-step how to create the certificates required to authenticate your server and your clients, and how to configure syslog-ng Open Source Edition (syslog-ng OSE) to send your log messages in an encrypted connection. Installing syslog-ng OSE is not covered, but downloading it for your platform and installing it should be easy.

Read more... Comment (6)
 

Second milestone of Univention Corporate Server 4.0

Today, Univention has released the second milestone of Univention Corporate Server 4.0. This is aimed at channel partners, technology partners and interested parties, who want to take a first glance at the upcoming release of Univention Corporate Server (UCS), which is planned for mid of November 2014.

It already includes a preview of the completely redesigned Univention Management Console, the web-based graphical interface of UCS' infrastructure management system, with the aim to improve overall usability.

It also includes a connection with OpenStack and Amazon EC2 to manage hybrid clouds.

Further information on: Univention forum

 
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