Tabula Rosa Systems Blog Of The Daay - Blockchain

From whatis.com

blockchain

Blockchain is a type of distributed ledger for maintaining a permanent and tamper-proof record of transactional data. A blockchain functions as a decentralized database that is managed by computers belonging to a peer-to-peer (P2P) network. Each of the computers in the distributed network maintains a copy of the ledger to prevent a single point of failure (SPOF) and all copies are updated and validated simultaneously. In the past, blockchains were commonly associated with digital currencies such as Bitcoin, or alternate versions of Bitcoin like Bitcoin Cash. Today, blockchain applications are being explored in many industries as a secure and cost-effective way to create and manage a distributed database and maintain records for digital transactions of all types. How blockchain works A blockchain ledger consists of two types of records, individual transactions and blocks. The first block consists of a header and data that pertains to transactions taking place within a set time period. The block's timestamp is used to help create an alphanumeric string called a hash. After the first block has been created, each subsequent block in the ledger uses the previous block's hash to calculate its own hash. Before a new block can be added to the chain, its authenticity must be verified by a computational process called validation or consensus. At this point in the blockchain process, a majority of nodes in the network must agree the new block's hash has been calculated correctly. Consensus ensures that all copies of the distributed ledger share the same state. Once a block has been added, it can be referenced in subsequent blocks, but it cannot be changed. If someone attempts to swap out a block, the hashes for previous and subsequent blocks will also change and disrupt the ledger's shared state. When consensus is no longer possible, other computers in the network are aware that a problem has occurred and no new blocks will be added to the chain until the problem is solved. Typically, the block causing the error will be discarded and the consensus process will be repeated.

==========================================   For a great satire on email, please see the following: https://www.youtube.com/watch?v=HTgYHHKs0Zwscoop_post=bcaa0440-2548-11e5-c1bd-90b11c3d2b20&__scoop_topic=2455618 ===============================================  Good Netiquette And A Green Internet To All!

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·        Antarctica Day

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Every year millions of Americans find themselves unable to vote because they miss a registration deadline, don’t update their registration, or aren’t sure how to register.

Our partners at Vote Forward have made it easy to contact historically under-represented, not-yet-registered voters living in key 2020 swing states to provide them with everything they need to register to vote.

Click the link to set up an account or sign in, then scroll down to the second row of options and choose one of the campaigns that includes voter registration forms.

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air gapping

Air gapping is a security measure that involves physically isolating a computer or network to prevent it from connecting directly or wirelessly to other systems that can connect to the Internet. Air gapping is used to protect many types of critical systems, including those that support the stock market, the military, the government and industrial power industries. To prevent unauthorized data extrusion through electromagnetic or electronic exploits, there must be a specified amount of space between the air-gapped system and outside walls and between its wires and the wires for other technical equipment. In the United States, the U.S. National Security Agency TEMPEST project provides best practices for using air gaps as a security measure. For a system with extremely sensitive data, a Faraday cage can be used to prevent electromagnetic radiation (EMR) escaping from the air-gapped equipment. Although such measures may seem extreme, van Eck phreaking can be used to intercept data such as key strokes or screen images from demodulated EMR waves, using special equipment from some distance away. Other proof-of-concept (POC) attacks for air- gapped systems have shown that electromagnetic emanations from infected sound cards on isolated computers can be exploited and continuous wave irradiation can be used to reflect and gather information from isolated screens, keyboards and other computer components. As of this writing, the Defense Advanced Research Projects Agency (DARPA) is awarding grants for prototype hardware and software designs that will keep sensitive data physically isolated. The grants are made possible under the Guaranteed Architecture for Physical Security (GAPS) program. Enhancing air-gapped security measures The problem with physical separation as a security technique is that, as complexity increases in some system or network to be isolated, so does the likelihood that some unknown or unauthorized external connection will arise. Perhaps the most important way to protect a computing device or network from an air gap attack is through end user security awareness training. The infamous Stuxnet worm, which was designed to attack air-gapped industrial control systems, is thought to have been introduced by infected thumb drives found by employees or obtained as free giveaways. The software-defined perimeter (SDP) framework is another tool network engineers can use to create a type of "virtual air gapping" through policy enforcement. SDP requires external endpoints that want to access internal infrastructure to comply with authentication policies and ensures that only authenticated systems can see internal IP addresses.

In my books, noted below, I often lament about the lack of civility, deterioration of written communication and abuse of the power of the Internet. Electronic communication, in my opinion, breeds negativity and behavior which does not exist in direct communication. 

The following is an except from my first book which addresses angry email replies.

Enjoy the article and check out the website!
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 For a great satire on email, please see the following:
https://www.youtube.com/watch?v=HTgYHHKs0Zwscoop_post=bcaa0440-2548-11e5-c1bd-90b11c3d2b20&__scoop_topic=2455618
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Good Netiquette And A Green Internet To All! 

Special Bulletin - My just released book, 

"You're Hired. Super Charge our Email Skills in 60 Minutes! (And Get That Job...) 

is now on sales at Amazon.com 

Great Reasons for Purchasing Netiquette IQ

·         Get more email opens.  Improve 100% or more.

·         Receive more responses, interviews, appointments, prospects and sales.

·         Be better understood.

·         Eliminate indecision.

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·         Have recipient finish reading your email content. 

·         Save time by reducing questions.

·         Increase your level of clarity.

·         Improve you time management with your email.

·        Have quick access to a wealth of relevant email information.

Enjoy most of what you need for email in a single book.

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**Important note** - contact our company for very powerful solutions for IP
 management (IPv4 and IPv6, security, firewall and APT solutions:
www.tabularosa.net
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Another Special Announcement - Tune in to my radio interview,  on Rider University's station, www.1077thebronc.com I discuss my recent book, above on "Your Career Is Calling", hosted by Wanda Ellett.   

In addition to this blog, Netiquette IQ has a website with great assets which are being added to on a regular basis. I have authored the premiere book on Netiquette, “Netiquette IQ - A Comprehensive Guide to Improve, Enhance and Add Power to Your Email". My new book, “You’re Hired! Super Charge Your Email Skills in 60 Minutes. . . And Get That Job!” has just been published and will be followed by a trilogy of books on Netiquette for young people. You can view my profile, reviews of the book and content excerpts at:

 www.amazon.com/author/paulbabicki

In addition to this blog, I maintain a radio show on BlogtalkRadio  and an online newsletter via paper.li.I have established Netiquette discussion groups with Linkedin and  Yahoo.  I am also a member of the International Business Etiquette and Protocol Group and Minding Manners among others. I regularly consult for the Gerson Lehrman Group, a worldwide network of subject matter experts and I have been contributing to the blogs Everything Email and emailmonday . My work has appeared in numerous publications and I have presented to groups such as The Breakfast Club of NJ and  PSG of Mercer County, NJ.

I am the president of Tabula Rosa Systems, a “best of breed” reseller of products for communications, email, network management software, security products and professional services.  Also, I am the president of Netiquette IQ. We are currently developing an email IQ rating system, Netiquette IQ, which promotes the fundamentals outlined in my book.

Over the past twenty-five years, I have enjoyed a dynamic and successful career and have attained an extensive background in IT and electronic communications by selling and marketing within the information technology marketplace.Anyone who would like to review the book and have it posted on my blog or website, please contact me paul@netiquetteiq.com.
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