Tutorial john the ripper

Video ini hanya tutorial dasar tentang cara mendwonload serta menggunakan john the ripper sebagai pemecah password ;)

Wireless gear

Wireless gear touches our lives in surprising ways. It’s not just computers and phones these days there’s wireless in everything from TVs and audio systems to planes, trains, and automobiles. To help you wrap your mind around the expanse of wireless, we take the time in this Part to lay out a vision of the wireless world. We talk
about where you find wireless and what flavor of wireless you can expect to find in each device and place. Then we spend some time looking at the nitty-gritty details about the standards and certifications — explaining key concepts like 802.11 and Wi-Fi — so that you’ll understand
exactly which pieces of wireless gear work together, and which don’t. We also review the pieces and parts that make up a wireless network. If you’ve already got a wireless network in place, you can skim through this quickly it’s always there for you to refer back to if you want. Finally, we review the equipment and services you need to connect your wireless networks to the Internet. Don’t underesti-mate the importance of this step — the value of your net-works increases exponentially as they are connected to other networks.

China as top carbon polluter

The research suggests the country's greenhouse gas emissions have been underestimated, and probably passed those of the US in 2006-2007.
Until now it has been generally believed that the US remains "Polluter Number One".

Next month's University of California report warns that unless China radically changes its energy policies, its increases in greenhouse gases will be several times larger than the cuts in emissions being made by rich nations under the Kyoto Protocol.

The researchers say their figures are based on provincial-level data from the Chinese Environmental Protection Agency.

Unlimited Bandwidth for Blogging

For recent years blogging is one of the most up-to-date things to do when people surf in the internet; almost everyone who in touch with internet such as teenagers, workers and school kids are familiar with blog. Blog is a tool to write their journal that you want and spread it to the world via internet. Not only that, the blog’s visitor could wrote comment about the blog’s entry they feel like commenting. It means, we can interract with blog owner for the article that we read.

With http://www.thoughts.com, blogging is very easy and simple, and there are lot of blog services in the internet. Some sites provide not only blog but also upload videos and photos where we could upload our favorite photos. We could also chat in thoughts forum, or community forum, where people choose topic for the day or the week and discuss it in real time.

Blogging is a very unique way to connect with people around the world. We were able to know there are others who share a similar way of think or way of life with us. We could also share our thoughts and knowledge in thoughts forum. Hopefully we will gain more information, and in some way, it good to shape our mind.

Using Domains Expired To Make Online Profits

If you have a series of domains expired at your disposal, you can earn some decent income by using the power of expired domain names. One of the best ways to earn a simple income is to sell it straightaway to an interested buyer. But, with this option, you may not really earn a large income. So, you will need to devise a strategy that will provide you an opportunity to earn more income. One of the most preferred ways of earning small incomes by using domains expired, is to park it with a parking service. Parking service provides you a facility, where you can create a simple web page to host your expired domain name. When online surfers click on your page, they will navigate to other useful web site that can provide very good services, sell excellent products or provide useful online information. For very successful click, you can earn a small income and when pooled, this can be a very big source of income to you.

Other simple methods include registering your domains expired with convenient PPC and affiliate engines that provide a tiny share of income that arises out of successful sales or clicks. You can also use a good expired domain name to build a web site, develop it with good content and later sell them at premium rates to any interested parties. These are some of the simple methods that allow you to use the hidden power of domains expired to make a large pool of income. If you are careful enough in using your expired domains, you can earn a hefty profit and a sustained residual form of income.

Domain in science

Domain is the distinguished part of an abstract or physical space where something exists, is performed, or valid. For example, we may talk about: domain of interest, domain of activity. This concept is used in every branch/sector/field of human activity.

In biology, domain (also superregnum, superkingdom, or empire) is the top-level taxon of organisms in scientific classification, higher than a kingdom. Domain (or its synonyms) is the most inclusive of these biological groupings

In mathematics, a domain of a k-place relation L ⊆ X1 × … × X'k is one of the sets X'j, 1 ≤ j ≤ k
and can define to as:

• the domain of a function
• one of the domains of a relation
• an ordered structure studied in domain theory
• a ring-theoretic domain, an integral domain or a Euclidean domain — types of ring
• an open and connected set
• domain of discourse in symbolic logic

In abstract algebra, a domain is a ring with 0 ≠ 1 such that ab = 0 implies that either a = 0 or b = 0 (the zero-product property). That is, it is a nontrivial ring without left or right zero divisors.

But ussualy we know domain as :
The address of a site, without the protocol, path, page or other items attached. For example, microsoft.com is a domain, however, a full URL could be http://www.microsoft.com/stuff/page.html

Backup Your file

First Choose what device you will use to back up your data. The most common devices to back up data have been tape drives, zip drives and flash drives. More recently, CDRW drives (CD read/write drives) are being used for backups. Your decision will be based on how much data you need to back up, what devices you already have that could be used for backups, and whether or not you can purchase a new backup device.

The least expensive devices are Iomega zip drives and disks. Zip disks come in 250MB and 100MB sizes. You must buy a zip drive designed for 250MB disks to use 250MB disks. All zip drives can work with 100MB zip disks. Zip drives come with software for backing up data to zip disks or you can copy the folder that all your data is under ("My Documents" or "Documents and Settings" to a zip disk if it will all fit.

CDRW drives can be used like a 650MB floppy disk when using CDRW disks and packet writing software that comes with the drive. The disks you create will be readable only on other CDRW drives or CDR/DVD drives that support the multi-thread standard. All drives capable of reading CDRW disks require software to be installed that supports reading CDRW disks. You should use software that supports the UDF standard (most current CDRW packet writing software does) when writing files on your CDRW drive and install UDF reader software on computers with multithread CD or DVD drives that you want to read CDRW disks. Drives with early implementations of multithread may not be able to read CDRW disks even with UDF reader software installed. Free UDF readers are available from Ahead Software and Roxio. CDRW drives may come with backup or disaster recovery software but you should look carefully at the software bundled with a CDRW drive before purchasing it.

Unlike the previous devices, tape drives are designed specifically for backing up data. They hold more data, 4GB to more than 40GB, and require running a backup program both to backup or restore files. A tape drive cannot be used like a large floppy disk. Windows 95/98/ME does not come with backup software so you must use the software, if any, that comes with the tape drive, or purchase backup software. Windows NT has a backup program that works with most SCSI tape drives. Windows 2000/XP has a backup program that works with any removable media that can be written to from within Windows (e.g. zip, jaz, CDRW) and most tape drives. Tape is the least expensive media for very large amounts of data.