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Hey, sysadmin’s

Those administering Bluecoat Proxy SG appliance and has encountered that allowing certain sites/url for selected users does not work properly.

This is due to that the main site accessing  different subsites/urls in background for providing the associated services.

All those sites/urls have to be taken into consideration while providing access to particular site.

Well lets take for example you give access to only hotmail/live.com and its not working properly then in that case the following all urls needs to be permitted for flawless working:

hotmail site      

.accountservices.passport.net
.secure.shared.live.com 
.live.com     

and for facebook here are the URL which includes games apps too.

facebook site

.facebook.com
.facebook.net
.fbcdn.net 
.akamaihd.net        
.zgncdn.com

enjoy…

SOCIALISM You have two cows. You keep one and give one to your neighbor.

COMMUNISM You have two cows. The government takes them both and provides you with milk.

FASCISM You have two cows. The government takes them and sells you the milk.

BUREAUCRACY You have two cows. The government takes them both, shoots one, milks the other, pays you for the milk, and then pours it down the drain.

CAPITALISM You have two cows. You sell one and buy a bull.

CORPORATE You have two cows. You sell one, force the other to produce the milk of four cows, then act surprised when it drops dead.

DEMOCRACY You have two cows. The government taxes you to the point that you must sell them both in order to pay the taxes to support a man in a foreign country who has only one cow which was a gift from your government.

Needed to upgrade the XenServer (v6.0) host memory, while shutting down the VM’s running on the host, i encountered, two of windows x64 guests stuck and hung while shutting down.
When attempted to force shutdown, it complained that “Another operation involving the object is currently in progress “

Goggling for the error found the following link which fixed the issue:
here and here

Here’s quote from one of the post that finally fix it for me (you need to login to server’s shell to execute the below command) :
1 - “xe vm-list” to get the uuid of the VM that is hung
2 – “list_domains” to list the domain uuid’s so you can determinethe domain # of the VM above by matching the uuids from this output with

the uuid for your VM from the previous command.
3 – “/opt/xensource/debug/destroy_domain -domid XX” where XX is the domain number from the previous command
4 – “xe vm-reboot uuid=XXXX –force” where XXXX is the uuid from the first vm-list command for your VM. (name-label may work but didn’t work this time for me so I used the uuid)

after following the above instructions almost worked but VM’s were still stuck however, adding a “xe-toolstack-restart” at the end took care of the problem.

iPhone & Gmail account

If You have iPhone and are not able to add your gmail account or if authentication fails, then following condition applies:

You have turned on two steps verification for gmail account then you need to authorize your iPhone device. When this is done a password DIFFERENT from your google account password is autogenerated by Google. It is this autogenerated password that you need to enter into your iphone. So here’s what worked.

Log into your Google account through https://www.google.com/accounts/Login and go to Personal Settings > Security > Authorizing applications & sites and revoke your previous access to iphone (if any)

Then create it again and when the password is generated in the ‘Generate new application-specific password box’, use that new generated password in your Gmail Account Information on the iPhone below your email address.

Original Post here

It’s an exciting time to be in technology. As IT professionals, we get to say we are the generation that witnessed how Big Data transformed the world. we saw how virtualization revolutionized IT and gave birth to the cloud. But more importantly, we get to say that we are the generation that witnessed how technology helped us feed the world quicker, warm the world quicker, cure the world and maybe even heal the world.

You see, everything we do on a daily basis as IT professionals means something if we can put it in context. They say every action generates a reaction, an event could lead to a sequence of events or could have a trickle effect, but there is so much data out there, so much information and our brain can only process small nuggets, can only address information from a very narrow perspective.

Bottom line is, we are slow, and most research takes years. It takes years because it is necessary to correlate data and make sense of it. So, what if there was a way to correlate data and all sorts of information in real time? If that were possible, would you not be able to make better decisions for your business? Would that not enable you to find cures for disease faster? Or maybe even avert epidemics altogether? Maybe even avert wars? Stop terrorist attacks? The possibilities are limitless. They say society is knowledge, and knowledge is power. Well, Big Data promises to deliver information of all sorts, correlate it and analyze it so that you can make a better, more informed decision in real time.

Enough philosophy — let’s look at an example. What if the shortage in certain types of food, which is high in certain vitamins was responsible for people getting sick? Getting the flu? This type of data research and analysis would take years to gather, to understand and to conclude. The data would be so old and after-the-fact that it would only be useful in university studies and research papers. So, what if that information was available in real time? What can government do with it? How about they alert the communities mostly affected, suggest certain vitamin intakes or perhaps the consumption of other foods high in that vitamin. What about pharmaceutical companies? They could use that data to develop a cure to a flu variation that has not spread yet. But you will say that is all for large enterprise. I say Big Data is for all sizes of enterprise. If you owned a pharmacy, would this information help you? Absolutely it would. Based on Big Data analysis, you might stock more of a certain type of medicine

That’s just one example of many on how Big Data can impact and better our lives, but processing that large amount of data requires a platform capable of handling that amount of data, computing it fast enough and is capable of scaling as fast as we generate data. Today, there are many platforms capable of doing that. Hadoop is one such platform, capable of ingesting structured and unstructured data, Hadoop is quickly becoming the platform of choice and has garnered support from the three largest database developers: Microsoft, Oracle and IBM.

The power of Hadoop is that you can deploy it on standard x86 computers and you can scale it by adding more nodes, a true implementation of grid computing. As a result, Big Data can be leveraged by large and small enterprises. As the data grows and your ability to manage it becomes more challenging, there is always the cloud, ready and able to address these concerns, able to scale, absorbing large quantities of data and unlimited computational resources.

Make no mistake, Big Data is here and enterprises that appreciate it, leverage it, will reap the benefits and grow substantially. Big Data for me is the first time I can literally appreciate the technology beyond the geeky aspect of engineering or putting it all together, and being able to know that our efforts make a difference in the world we live in.

A Tribute

A salute to the visionary, the genius and a beautiful human being.

  • my blog wordpress theme changed to Retro MacOS
  • one of my three favorites browsers “Chrome” theme changed
  • well for a week profile pic of my twitter & facebook

The Man Who Inspired Steve Jobs

Who did Steve Jobs model himself after?
Edwin Land of Polaroid.
Surprised?

In many ways, Apple’s co-founder emulated Polaroid’s Edwin Land,
the inventor of instant photography.

The Man Who Inspired Jobs

Original Post By Jason Hiner

Steve Jobs, 1955-2011

Wednesday 06th October 2011

The icon of Apple who bought fun & world information to finger tips is no more.

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