Run RAID1 on Your Cloud Storage

Popular cloud storage hosting services such as Ubuntu One, Dropbox and ZumoDrive grow more tremendously than ever. Usually they give us an impression of reliability and persistence. However, since the vicissitude of life is hard to predict, no one can definitely foresees their future survival. That is, the storage isn't 100 percent robust yet. So, what if they can synchronize to back up each other?

Instead of oscillating between RAID hardware and software, all you need is to put, for example, the Dropbox folder into the ZumoDrive. Then, whenever a file is added or edited in the Dropbox folder, the addition or change will automatically synchronizes with both Dropbox and ZumoDrive services at the expense of duplicate storage.

Sounds crazy but practical especially when you want to give an untrusted new online storage hosting service a shot.

Run RAID1 on Your Cloud Storage

Recent HP Printer Software Stalls Your Windows on Boot and Login

Whenever I install the software package of HP J4580, Windows XP always hangs for about two minutes to log in a user. This is quite annoying so that an average user would rather avoid shutting down the Windows than wait for another long time booting. Does it aggravate the green house effects? It's a no-brainer that HP's SQA and its customer support are to blame for neither early discovering nor addressing consumers' troubles for years.

Though many customers leave complaints on the HP's official forums, there seems no official solutions yet. Fortunately, with the efforts by some users of perseverance, a expedient is proposed by Grisham.

Another way to get rid of the problem is to install and use these printers on Linux with HPLIP which works more efficiently than its corresponding Windows software package. Most popular Linux distributions such as ubuntu and Fedora have built it in. However, receiving fax to computers is only supported on Windows currently. The best solutions of both worlds is still unavailable.

Recent HP Printer Software Stalls Your Windows on Boot and Login

Write a startup script for a linux daemon program

If you have written a daemon program and want it to run at system startup, or control it as a general system service, how to do that?

The answer is to write a startup script for your daemon program.

Write a startup script for a linux daemon program

Google Apps account and Google account have separate permissions

Two popular social broadcasting services, HelloTxT and Ping, deliver massive messaging support for a bunch of social networks. However, the former fails to post to my Google Buzz while the later does.

In my case, I use Google Apps mail and have a Google account set up with the apps mail address. However, Google Buzz is currently only available for Google account so that a social broadcasting service needs to clarify the right account for Google Buzz. It's a no-brainer HelloTxT confuses the two accounts' email addresses and unexpectedly links to the Google Apps account whose Buzz is unavailable.

Google Apps account and Google account have separate permissions

Ubuntu 10.04 Lucid Lynx Blank Screen on Boot

After installing the latest release of ubuntu 10.04 on my home server, whenever the monitor's signal plug is connected, the screen goes blank with high possibility on boot and then shows no signal. If the signal plug is not connected otherwise, the system usually boots to login successfully.

There is some workaround proposed on the web, where the key is to add i915.modeset=0 at the end of the line GRUB_CMDLINE_LINUX="" in /etc/default/grub. Afterwards, run sudo update-grub to update the grub and no pains recur.

Ubuntu 10.04 Lucid Lynx Blank Screen on Boot

GRE Practice Argument: Forestville Speed Limit

Six months ago the region of Forestville increased the speed limit for vehicles traveling on the region's highways by ten miles per hour. Since that change took effect, the number of automobile accidents in that region has increased by 15 percent. But the speed limit in Elmsford, a region neighboring Forestville, remained unchanged, and automobile accidents declined slightly during the same six-month period. Therefore, if the citizens of Forestville want to reduce the number of automobile accidents on the region's highways, they should campaign to reduce Forestville's speed limit to what it was before the increase.

GRE Practice Argument: Forestville Speed Limit

GRE Practice Issue C100

Both the development of technological tools and the uses to which humanity has put them have created modern civilizations in which loneliness is ever increasing.

GRE Practice Issue C100