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5 Thought-Provoking Use Cases Of Blockchain In Diverse Industries

Decentralized networks Cryptography *Habr Infographics Cryptocurrencies

Blockchain is a decentralized technology that maintains a record of all transactions occurring over a peer-to-peer network. Due to Blockchain's several different high-level use cases, numerous industries described Blockchain as the 'magic beans.' 

Blockchains store the record in a decentralized system that is interconnected. This technology lessens vulnerability and enhances transparency in all industrial sectors as information is stored digitally, and it does not have any centralized point to carry out the transactions.

Do You Know?

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Total votes 1: ↑0 and ↓1 -1
Views 482
Comments 1

How To Solve?: «ECONNREFUSED — connection refused by server»

Hosting Website development *Habr Network standards
Tutorial

Chances are that while you've been using FileZilla you've also come across the ECONNREFUSED — connection refused by a server error. If that's the case — great that you've found this tutorial! I am going to show you three methods that might help you with resolving this FTP error.

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Total votes 5: ↑3 and ↓2 +1
Views 5.3K
Comments 1

How Protonmail is getting censored by FSB in Russia

Habr corporate blog Information Security *Habr Server Administration *Legislation in IT
Translation

A completely routine tech support ticket has uncovered unexpected bans of IP addresses of Protonmail — a very useful service for people valuing their Internet freedoms — in several regions of Russia. I seriously didn’t want to sensationalize the headline, but the story is so strange and inexplicable I couldn’t resist.


TL;DR


Disclaimer: the situation is still developing. There might not be anything malicious, but most likely there is. I will update the post once new information comes through.


MTS and Rostelecom — two of the biggest Russian ISPs — started to block traffic to SMTP servers of the encrypted email service Protonmail according to an FSB request, with no regard for the official government registry of restricted websites. It seems like it’s been happening for a while, but no one paid special attention to it. Until now.


All involved parties have received relevant requests for information which they’re obligated to reply.


UPD: MTS has provided a scan of the FSB letter, which is the basis for restricting the access. Justification: the ongoing Universiade in Krasnoyarsk and “phone terrorism”. It’s supposed to prevent ProtonMail emails from going to emergency addresses of security services and schools.


UPD: Protonmail was surprised by “these strange Russians” and their methods for battling fraud abuse, as well as suggested a more effective way to do it — via abuse mailbox.


UPD: FSB’s justification doesn’t appear to be true: the bans broke ProtonMail’s incoming mail, rather than outgoing.


UPD: Protonmail shrugged and changed the IP addresses of their MXs taking them out of the blocking after that particular FSB letter. What will happen next is open ended question.


UPD: Apparently, such letter was not the only one and there is still a set of IP addresses of VOIP-services which are blocked without appropriate records in the official registry of restricted websites.

Total votes 66: ↑64 and ↓2 +62
Views 6.8K
Comments 4

Hello world! Or Habr in English, v1.0

Habr corporate blog Habr
This is the first post in our blog in 2019. And this is important for all of us: we are finally launching the English version of Habr! Actually it was ready in the middle of December, but — you know — releasing a new feature right before Christmas is like deploying on Friday afternoon. So we decided to do it in the beginning of 2019.


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Total votes 180: ↑178 and ↓2 +176
Views 26K
Comments 249

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