Monthly Archives: July 2009

Cloud Computing


cloud computing is a general term for anything that involves delivering hosted services over the Internet. These services are broadly divided into three categories: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS) and Software-as-a-Service (SaaS). The name cloud computing was inspired by the cloud symbol that’s often used to represent the Internet in flow charts and diagrams.

cloud

This essentially means that using idle processing power, memory and  storage and other computer resources from the participants of cloud computing. we can explain it like this, most of the Pc’s present doesn’t even 50% of their processing power or memory most of the times. It is all about using this idle resources and using it effectively.

This is mainly useful for those who require very high processing power. Basically they need not go for expensive super computers and they can put their calculations on the cloud and process it at a very cheaper rate.The charge is mainly hourly on in some cases minute by minute basis. This is the wikipedia link for cloud computingcloud_computing.

I have a dream


I Have A Dream” is the popular name given to the public speech by Martin Luther King, Jr., when he spoke of his desire for a future where blacks and whites, among others, would coexist harmoniously as equals. King’s delivery of the speech on August 28, 1963, from the steps of the Lincoln Memorial during the March on Washington for Jobs and Freedom, was a defining moment of the American Civil Rights Movement. Delivered to over 250,000 civil rights supporters, the speech is often considered to be one of the greatest and most notable speeches in human history and was ranked the top American speech of the 20th century by a 1999 poll of scholars of public address.

I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation.

Five score years ago, a great American, in whose symbolic shadow we stand today, signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves who had been seared in the flames of withering injustice. It came as a joyous daybreak to end the long night of their captivity.

But one hundred years later, the Negro still is not free. One hundred years later, the life of the Negro is still sadly crippled by the manacles of segregation and the chains of discrimination. One hundred years later, the Negro lives on a lonely island of poverty in the midst of a vast ocean of material prosperity. One hundred years later, the Negro is still languished in the corners of American society and finds himself an exile in his own land. And so we’ve come here today to dramatize a shameful condition.

In a sense we’ve come to our nation’s capital to cash a check. When the architects of our republic wrote the magnificent words of the Constitution and the Declaration of Independence, they were signing a promissory note to which every American was to fall heir. This note was a promise that all men, yes, black men as well as white men, would be guaranteed the “unalienable Rights” of “Life, Liberty and the pursuit of Happiness.” It is obvious today that America has defaulted on this promissory note, insofar as her citizens of color are concerned. Instead of honoring this sacred obligation, America has given the Negro people a bad check, a check which has come back marked “insufficient funds.”

But we refuse to believe that the bank of justice is bankrupt. We refuse to believe that there are insufficient funds in the great vaults of opportunity of this nation. And so, we’ve come to cash this check, a check that will give us upon demand the riches of freedom and the security of justice.

We have also come to this hallowed spot to remind America of the fierce urgency of Now. This is no time to engage in the luxury of cooling off or to take the tranquilizing drug of gradualism. Now is the time to make real the promises of democracy. Now is the time to rise from the dark and desolate valley of segregation to the sunlit path of racial justice. Now is the time to lift our nation from the quicksands of racial injustice to the solid rock of brotherhood. Now is the time to make justice a reality for all of God’s children.

It would be fatal for the nation to overlook the urgency of the moment. This sweltering summer of the Negro’s legitimate discontent will not pass until there is an invigorating autumn of freedom and equality. Nineteen sixty-three is not an end, but a beginning. And those who hope that the Negro needed to blow off steam and will now be content will have a rude awakening if the nation returns to business as usual. And there will be neither rest nor tranquility in America until the Negro is granted his citizenship rights. The whirlwinds of revolt will continue to shake the foundations of our nation until the bright day of justice emerges.

But there is something that I must say to my people, who stand on the warm threshold which leads into the palace of justice: In the process of gaining our rightful place, we must not be guilty of wrongful deeds. Let us not seek to satisfy our thirst for freedom by drinking from the cup of bitterness and hatred. We must forever conduct our struggle on the high plane of dignity and discipline. We must not allow our creative protest to degenerate into physical violence. Again and again, we must rise to the majestic heights of meeting physical force with soul force.

The marvelous new militancy which has engulfed the Negro community must not lead us to a distrust of all white people, for many of our white brothers, as evidenced by their presence here today, have come to realize that their destiny is tied up with our destiny. And they have come to realize that their freedom is inextricably bound to our freedom.

We cannot walk alone.

And as we walk, we must make the pledge that we shall always march ahead.

We cannot turn back.

There are those who are asking the devotees of civil rights, “When will you be satisfied?” We can never be satisfied as long as the Negro is the victim of the unspeakable horrors of police brutality. We can never be satisfied as long as our bodies, heavy with the fatigue of travel, cannot gain lodging in the motels of the highways and the hotels of the cities. We cannot be satisfied as long as the negro’s basic mobility is from a smaller ghetto to a larger one. We can never be satisfied as long as our children are stripped of their self-hood and robbed of their dignity by signs stating: “For Whites Only.” We cannot be satisfied as long as a Negro in Mississippi cannot vote and a Negro in New York believes he has nothing for which to vote. No, no, we are not satisfied, and we will not be satisfied until “justice rolls down like waters, and righteousness like a mighty stream.”¹

I am not unmindful that some of you have come here out of great trials and tribulations. Some of you have come fresh from narrow jail cells. And some of you have come from areas where your quest — quest for freedom left you battered by the storms of persecution and staggered by the winds of police brutality. You have been the veterans of creative suffering. Continue to work with the faith that unearned suffering is redemptive. Go back to Mississippi, go back to Alabama, go back to South Carolina, go back to Georgia, go back to Louisiana, go back to the slums and ghettos of our northern cities, knowing that somehow this situation can and will be changed.

Let us not wallow in the valley of despair, I say to you today, my friends.

And so even though we face the difficulties of today and tomorrow, I still have a dream. It is a dream deeply rooted in the American dream.

I have a dream that one day this nation will rise up and live out the true meaning of its creed: “We hold these truths to be self-evident, that all men are created equal.”

I have a dream that one day on the red hills of Georgia, the sons of former slaves and the sons of former slave owners will be able to sit down together at the table of brotherhood.

I have a dream that one day even the state of Mississippi, a state sweltering with the heat of injustice, sweltering with the heat of oppression, will be transformed into an oasis of freedom and justice.

I have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character.

I have a dream today!

I have a dream that one day, down in Alabama, with its vicious racists, with its governor having his lips dripping with the words of “interposition” and “nullification” — one day right there in Alabama little black boys and black girls will be able to join hands with little white boys and white girls as sisters and brothers.

I have a dream today!

I have a dream that one day every valley shall be exalted, and every hill and mountain shall be made low, the rough places will be made plain, and the crooked places will be made straight; “and the glory of the Lord shall be revealed and all flesh shall see it together.”2

This is our hope, and this is the faith that I go back to the South with.

With this faith, we will be able to hew out of the mountain of despair a stone of hope. With this faith, we will be able to transform the jangling discords of our nation into a beautiful symphony of brotherhood. With this faith, we will be able to work together, to pray together, to struggle together, to go to jail together, to stand up for freedom together, knowing that we will be free one day.

And this will be the day — this will be the day when all of God’s children will be able to sing with new meaning:

My country ’tis of thee, sweet land of liberty, of thee I sing.

Land where my fathers died, land of the Pilgrim’s pride,

From every mountainside, let freedom ring!

And if America is to be a great nation, this must become true.

And so let freedom ring from the prodigious hilltops of New Hampshire.

Let freedom ring from the mighty mountains of New York.

Let freedom ring from the heightening Alleghenies of Pennsylvania.

Let freedom ring from the snow-capped Rockies of Colorado.

Let freedom ring from the curvaceous slopes of California.

But not only that:

Let freedom ring from Stone Mountain of Georgia.

Let freedom ring from Lookout Mountain of Tennessee.

Let freedom ring from every hill and molehill of Mississippi.

From every mountainside, let freedom ring.

And when this happens, when we allow freedom ring, when we let it ring from every village and every hamlet, from every state and every city, we will be able to speed up that day when all of God’s children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing in the words of the old Negro spiritual:

Free at last! Free at last!

Thank God Almighty, we are free at last!3

Enabling Auto login in Linux


Note:I am using gnome desktop.

Here are the steps to enable auto login for a user in linux

  1. click on System—> Administration –> Login window

MENU

2.In the Login preferences window select the Security tab.

 SETTING

 

 3.Enable the option “Enable Automatic Login” and choose the user to be automatically logged in when system starts.

Microsoft goes of open


Old dogs may struggle with new tricks, but they seem to be able to figure out new licenses.

In a shocking move, Microsoft announced the release of Hyper-V Linux Integration Components (LinuxIC).

The news reflects Microsoft’s continued interest in lobotomizing its virtualization competition through low prices, but also the recognition that it must open up if it wants to fend off insurgent virtualization strategies from Red Hat, Novell, and others in the open-source camp.

But the truly startling news is that LinuxIC is being released under the GNU General Public License (version 2). Microsoft once called GPL anti-American. Now it calls it friend.

The gods must be crazy.

Or maybe Microsoft is simply recognizing (finally!) that GPL can be a capitalist’s close ally. That and the fact that many components within the Linux kernel are GPLv2-licensed make the move completely natural…at least, once you forget that this is Microsoft embracing GPL, rather than some other company like Red Hat.

LinuxIC is a collection of kernel drivers that enable Linux to recognize that it is running on Microsoft’s Hyper-V and optimize accordingly, resulting in an "enlightened version of Linux," according to market researcher IDC. The device drivers have yet to be accepted into the Linux kernel, but the GPL license and general utility makes their inclusion probable.

The move opens up Hyper-V to much more than Windows, which has arguably been its weakest point. As IDC notes, this embrace of Linux is a "key element if Microsoft is going to successfully go head to head with VMware in large accounts–many of which already are dedicated VMware customers."

Importantly, Microsoft is now opening up even beyond its long-time Linux partner, Novell, to embrace an array of other Linux partners, including Red Hat. While Novell was the first Linux vendor to certify for Hyper-V, Microsoft’s lack of real support beyond Novell’s Suse Linux Enterprise Server was a weakness, as some have complained.

But this is arguably a new Microsoft. Redmond recently announced that Office 2010 will support Internet Explorer and Mozilla’s Firefox. The company is learning that its customers run heterogeneous software environments, and it’s (slowly) responding. Microsoft’s Sam Ramji, senior director of Platform Strategy, notes: "We are seeing Microsoft communities and open source communities grow together, which is ultimately of benefit to our customers."

Microsoft, in short, can’t ignore open source, including Linux, without ignoring its own customers.

But surely this move is more Machiavelli than Santa Claus? Maybe, maybe not. I asked Novell’s Greg Kroah-Hartman, a prominent Linux kernel developer who was deeply involved in influencing Microsoft to release LinuxIC, what Microsoft’s move means for Linux. His response reflects an enthusiasm that is as surprising as it is refreshing:

We want Linux to work well for everybody. This move is not bad in any way for Linux, Xen (Novell’s preferred virtualization technology), or KVM (Red Hat’s preferred virtualization technology). This is not a competition, per se.

With LinuxIC, Microsoft is doing two things. First, it’s saying that contributing open-source software under GPL is acceptable. And second, it’s supporting the idea, which I and others in the Linux kernel community have long advanced, that all Linux kernel drivers should be open source.

LinuxIC is the latest example of how Microsoft is changing, and it’s a big proof point. When Microsoft embraces Linux, that’s news. When it does so by embracing GPL, it’s perhaps time to start the countdown to Armageddon.

Clear Type Tuning in Linux


Clear type is is a Microsoft trademark to implement sub pixel rendering which improves viewing quality in LCD monitors. This can can be implemented in Windows by by using clear type tuning power toy from Microsoft.In Linux we need not use any additional software for this. Follow these steps to enable it.

1.Right click on the desktop and chose change desktop background option.

MENU

2.In that select fonts tab and in rendering chose “sub pixel smoothing(LCDs).SETTING

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