Blockchain

What is a blockchain?

Information is essential to business. The faster and more precisely it is received, the better. Blockchain is the best technology for delivering that information because it offers a real-time, shareable, and complete, immutable ledger that stores transparent data and can only be accessed with network members’ permission. Orders, payments, accounts, production, and more may all be tracked via a Baas. Additionally, you can see every aspect of a transaction from beginning to end because all members have access to the same information. This gives you more confidence and opens up new options and efficiency. If you want to know more about BaaS, follow us in this article.

What is a blockchain (BaaS)?

BaaS is a blockchain service that enables users to create, utilize, and host their BaaS functionalities, apps, and smart contracts using cloud-based services.

How Does BaaS Work?

The BaaS provider receives payment from the customer for establishing and managing blockchain-linked nodes on the client’s behalf. A BaaS supplier operates the client’s business’s back end.

A Blockchain-as-a-Service provider is in charge of maintaining the blockchain infrastructure. A BaaS operator handles efficient resource allocation, bandwidth management, and hosting needs. Clients who use a BaaS model may concentrate more on their core businesses and the operation of their blockchains without worrying about infrastructure and performance difficulties.

Think of the blockchain as a service akin to a web host.

You create inventive websites that receive millions of daily visitors and hosts.

Benefits of blockchain

Operations frequently squander time and resources on third-party validations and duplicate record keeping. Systems for preserving records may be susceptible to fraud and online threats. A lack of openness may slow data verification. And the number of transactions has multiplied since the introduction of IoT. We need a better solution because this slows down the company and depletes the bottom line. Here comes blockchain. Learn about the benefits of blockchain in the rest of the article.

increased security

Blockchain technology fundamentally changes the way you view your sensitive and essential data. Generating a record that cannot be changed and is encrypted end-to-end of BaaS reduces fraud and unlawful behavior. Employing permissions to restrict access and anonymize personal data may also solve privacy concerns on the BaaS. In order to prevent hackers from accessing data, information is kept across a network of computers rather than on a single server.

Greater transparency

Without blockchain, every company needs to maintain a different database. BaaS employs a distributed ledger, which ensures that transactions and data are recorded consistently across all locations. Full transparency is provided since any network user with permissions may see the same data simultaneously. All transactions are time- and date-stamped records with immutability. Thanks to this, members may access the whole transaction history, almost eliminating the possibility of fraud.

Instant traceability

Blockchain establishes an audit trail that records an asset’s origins at each stage of its travel. This supports the argument in industries rife with fraud and counterfeiting and in enterprises where clients are concerned about a product’s environment or human rights issues. BaaS makes it feasible to communicate provenance information to customers directly. Data on traceability revealed weak points in any supply chain, such as where items may be stored on a loading dock while being transported.

Increased efficiency and speed

Traditional paper-intensive procedures take a long time, are subject to human mistakes, and frequently need for third-party mediation. Transactions may be finished more quickly and effectively by automating these operations with BaaS. The BaaS may hold documentation and marketing information together, doing away with the necessity for paper exchange. Clearing and settlement may happen considerably more quickly because there is no need to reconcile several ledgers.

Automation

Traditional paper-intensive procedures take a long time, are subject to human mistakes, and frequently need for third-party mediation. Transactions may be finished more quickly and effectively by automating these operations with BaaS. The blockchain may hold documentation and marketing information together, doing away with the necessity for paper exchange. Clearing and settlement may happen considerably more quickly because there is no need to reconcile several ledgers.

Types of blockchain networks

There are different types of BaaS. Follow us to learn more now about this.

Public Blockchain

Anyone may join and utilize a public BaaS, like the one used by Bitcoin. Possible negatives include:

  • The need for processing power.
  • A lack of privacy for transactions.
  • Shoddy security.

These are crucial factors to consider for BaaS use cases in businesses.

Private Blockchain

A private blockchain network, or a decentralized peer-to-peer network, is comparable to a public blockchain network. A single entity, however, controls the network’s governance, executing a consensus procedure and managing the shared ledger. Depending on the use case, this can significantly increase participant confidence and trust. Running a private BaaS behind a company firewall and hosting it on-site are options.

Permissioned blockchain networks

A permissioned BaaS is a type of blockchain that requires permission to join. Both private and public baas types can be included in this category. Of course, most private blockchains use this feature.

Consortium Blockchain

The duties of maintaining a BaaS can be split among several organizations. Who may submit transactions or access these previously chosen organizations decide upon the data? When all participants must have permission and share ownership of the blockchain, a consortium BaaS is the best option for business.

Conclusion

A potential idea is a BaaS, which provides businesses with scalable solutions based on blockchain technology to help them prepare for the future.

Make your business processes more effective, durable, and secure using the greenplus blockchain service.

cdn

What is CDN? | GreenWebPlus

 

Have you ever had a philosophical look at supermarkets? Places to access the goods you need. That makes it unnecessary to go to the factory’s warehouse. This is precisely what “CDN” does. CDN helps by saving a copy of the static content of your origin server in different pop sites, so you don’t need to connect to the source server every time to get the content you need, but it makes it possible for you to access it from the closest place. Follow this article to know more about CDN.

What is a CDN?

A network of geographically dispersed servers called a content delivery network (CDN) speeds up the delivery of web material by bringing it closer to the users. Caching, a technique that temporarily saves copies of files, is used by data centers worldwide so that you can access internet material through a web-enabled device or browser more rapidly through a server close to you.

CDNs cache web pages, pictures, and videos on proxy servers close to your location. This eliminates the need to wait when performing tasks like watching a ­­movie, downloading software, checking your bank account, posting on social media, or making transactions.

What are the benefits of CDNs?

Now that we understand what a CDN is, it’s time to look at the CDN benefits. Of course, the benefits of CDN are many and vary depending on each business, but in the following sentences, we will bring you the most important ones.

Improving website page load times

Visitors get quicker webpage loading times because of a nearby CDN server, which enables online content delivery closer to website visitors. A website with a long page load time typically has more visitors who click or leave. The rating of the website on search engines may potentially suffer as a result of this.

Therefore, having a CDN can decrease bounce rates and increase the time users stay on the site. Thus, a website that loads quickly will attract more people and keep them there longer.

Reducing bandwidth costs

The data that makes up the content a user asks for from a website or an online application must travel over physical paths to the user’s device. However, the bandwidth usage increases with the distance these assets must travel to reach their destination. In the end, this raises the price of bandwidth for firms.

High-resolution video and graphics are preferred by the online community, which makes the issue worse by adding to the data burden.

A CDN can reduce the quantity of data and distance needed to fulfill a user’s request by caching content data at network edge servers. Instead of connecting to the origin server, the cached version of the website is retrieved.

Increasing content availability and redundancy

Redundancy and availability of content are rising. Hardware issues or high online traffic might disrupt a website’s usual operation and cause downtime. A CDN can manage more web traffic and withstand hardware failure than multiple origin servers because of its distributed architecture. In addition, other active servers can take over and maintain service continuity if one or more CDN servers go unavailable for any reason.

Improving website security

It is perfect for reducing DDoS assaults since it uses the same procedure that CDNs use to handle traffic spikes. These are attacks when hostile actors send a large number of requests in an attempt to overwhelm your application or origin servers. Customers’ access to the website may be affected if the server goes down because of the volume.

A CDN effectively serves as a DDoS mitigation and protection framework, with the GSLB and edge servers dispersing the load evenly throughout the network’s total capacity. Additionally, CDNs can offer certificate administration and automatic certificate issuance and renewal.

How does a CDN work?

To understand how a CDN work, you must first comprehend the origin and edge of web servers in order.

origin server

A computer running one or more programs designed to listen for and respond to incoming internet requests is known as an origin server.

edge servers

The term “edge servers” describes servers (compute resources) that carry out processing at an edge location, anywhere along the edge spectrum, typically from on-premises edge to regional edge.

 

CDN makes a copy of the static content of your origin server and caches it in different geographical locations (edge servers are the same servers that store your copied content.). This way, CDN makes accessing your website easier for people from different parts of the world.

Conclusion

In this article, we tried to introduce you to the concept of CDN and how it works. In addition, we have listed the benefits of CDN for you. We hope this article was helpful for you. Finally, don’t forget that it is better to go for advanced cloud technologies as soon as possible to develop your business and forget about traditional infrastructure. GreenWebPlus CDN is at your service for the best development of your business.

CDN WordPress Compatibility

What Can a CDN That Is Compatible with WordPress Do?

CDN can speed up your WordPress website

How Content Delivery Networks (CDN) Can Impact SEO

Improve the speed of your website by CDN

DDoS attcks and How to prevent them

All about DDoS Attacks and How to Prevent Them

It is vital to have uninterrupted service whether you operate a small business or a personal website. If your website is slow or entirely unavailable, you may lose users and clients.

To build the most satisfactory security solution, every business owner must understand Distributed Denial of Service (DDoS) attacks thoroughly. Navigating DDoS attack types and their key characteristics is an important technique to gain expertise. 

What are DDoS Attacks?

DDoS attacks are carried out via networks of Internet-connected computers. These networks are made up of computers and other devices (such as IoT devices) that have been infected with malware. This allows an attacker to manage them remotely. Individual devices are known as bots (or zombies), while a network of bots is known as a botnet. After establishing a botnet, the attacker may conduct an attack by sending remote commands to each bot.

These attacks try to take down or slow down the targeted website by flooding the network, server, or application with fake traffic. DDoS attacks are malicious attempts to render internet services unavailable to users, frequently causing their hosting server to be temporarily interrupted or suspended. Because each bot is a legitimate Internet device, distinguishing attack traffic from regular traffic can be difficult.

DDoS attacks on websites and organizations of all sizes are common. GitHub was hit by one of the most remarkable DDoS attacks in 2018, taking the company’s website down for ten minutes. A DDoS attack disrupted the BBC’s whole network of websites in 2015. Moreover, numerous South African banking websites were targeted by ransom-driven DDoS attacks in 2019.

How to identify a DDoS attack?

The most visible indication of a DDoS attack is a site or service that becomes unexpectedly slow or inaccessible to legitimate traffic. However, even a minor shift in lawful traffic might cause many problems. Thus it is vital to look at a plethora of additional evidence. Users who have the same behavioral profile, device type, geography, or web browser version will generate a flood of traffic. DDoS attacks’ telltale signals can be detected using traffic analytics software. The server returns a 503 error and a service outage. Ping requests and TTL time-outs are also possible.

What are some common types of DDoS attacks?

Broadly speaking, DoS and DDoS attacks can be divided into three types:

  • Application Layer Attacks
  • Volume-based Attacks
  • Protocol Attacks

Application layer attacks

The purpose of application layer or layer 7 DDoS attacks (referring to the OSI model’s 7th layer) is to deplete the target’s resources and cause a denial of service. Layer 7 attacks are difficult to protect against since it might be difficult to distinguish between malicious and genuine communication.

An application-layer attack targets an application and particular vulnerabilities or flaws, preventing the program from communicating with or delivering content to its users (s).

Application Layer Attacks include low-and-slow attacks, GET/POST floods, and attacks against Apache, Windows, or OpenBSD vulnerabilities, among other things. The scope of the attack is measured in Requests per second (Rps).

The fundamental efficacy of most DDoS attacks stems from the difference between the resources required to launch an attack and the resources required to absorb or neutralize one. While this is true for L7 attacks, the efficiency of influencing both the targeted server and the network needs less total bandwidth to produce the same disruptive effect; an application layer attack does more significant harm with less total bandwidth.

An attacker may use a layer seven or application layer attack to target the application itself. Like SYN flood infrastructure attacks, the attacker attempts to overload particular components of an application to render it inaccessible or unresponsive to legitimate users. This is sometimes possible with very low request volumes that create only a modest amount of network traffic. As a result, the attack may be challenging to identify and neutralize. Examples of application-layer attacks are HTTP floods, cache-busting attacks, and WordPress XML-RPC floods.

An attacker launches a WordPress XML-RPC flood attack, also known as a WordPress pingback flood, against a website running on the WordPress content management platform. The attacker uses the XML-RPC API function to send a flood of HTTP requests. The pingback function allows a WordPress-hosted website (Site A) to alert another WordPress site (Site B) via a link that Site A has built to Site B. Site B then seeks to retrieve Site A to confirm the existence of the link. The attacker leverages this capability in a pingback flood to induce Site B to attack Site A. These attacks have a distinct signature: WordPress is generally included in the HTTP request header’s User-Agent field.

An attacker can choose to exploit the TLS negotiation process if a web application is served through Transport Layer Security (TLS). TLS is computationally costly; therefore, an attacker can degrade service availability by producing extra stress on the server to treat unreadable data (or incomprehensible (ciphertext)) as a genuine handshake. An attacker completes the TLS handshake but constantly renegotiates the encryption mechanism in a variant of this attack. In addition, an attacker can exhaust server resources by opening and closing many TLS sessions.

How can a CDN counteract DDoS attacks?

If your website is the subject of a DDoS attack, a CDN will ensure that the assault does not reach the origin server, rendering your site inoperable. When a server receives more traffic than it can manage, it simply forwards it to other servers. There will be no downtime for your website. Users won’t notice anything, and you won’t either.

Other methods for preventing HTTP floods include the usage of a web application firewall, traffic management and filtering using an IP reputation database, and on-the-fly network monitoring by engineers.

Green Plus CDN can evaluate traffic from several sources, mitigating possible attacks with continually updated WAF rules and other mitigation measures, often before they occur or have a chance to occur.

3 Techniques Mitigate Application Layer DDoS Attacks

Captcha and JavaScript Challenges

CAPTCHA verification is a web technique for determining if a user is a genuine person or a spam machine. CAPTCHAs provide users with altered letters or symbols that must be deciphered by humans. Another method for filtering requests from botnets or attack machines uses JavaScript computational challenges. Most botnets are incapable of dealing with such complicated difficulties.

Behavioral Analytics

Behavioral analytics is a security method that leverages AI and machine learning technologies to analyze and record user and object behavior. It then identifies any unusual activity or traffic that does not fit the typical/daily trends. This approach employs sophisticated analysis, data from logs and reports, and threat data to successfully identify anomalies that may signal hostile behavior. According to computer experts, this strategy allows for the precise detection of rogue actors that may threaten your system.

Web Application Firewall

A web application firewall protects your apps from the internet. An intelligent WAF can manage, filter, and analyze traffic from many sources. WAFs work with the aid of rules and policies that can be easily and quickly customized and updated. This allows it to respond to assaults more quickly. A WAF is the most effective defense against some of the most popular DDoS assaults, including layer seven attacks. Managed WAFs filter layer seven traffic and provide data to cybersecurity specialists who can identify malicious traffic attempting to disrupt your services.

green and gray computer and server

What Is a DNS Server?

To know about a DNS server, first, we need to elaborate on what a server is. A server is a device or software that provides services to other programs known as ‘clients.’ DNS clients, which are included in most current desktop and mobile operating systems, allow web browsers to communicate with DNS servers.

What is a DNS server?

The Domain Name System (DNS) is the Internet’s phonebook. When users input domain names like ‘google.com’ into web browsers, DNS is in charge of determining the correct IP address for those sites. Browsers then use the addresses to interact with origin servers or CDN edge servers to access website information. This is made possible by DNS servers, which are machines specialized in responding to DNS requests.

A DNS server’s goal is to convert what users put into their browser into something that a computer can understand and use to find a website. In other words, its function is to translate a domain name like www.example.com into an IP address like 71.232.101.120.

Thanks to DNS servers, people no longer have to memorize complicated IP addresses such as 216.58.217.206, Google’s IP address. They only need to remember www.google.com.

This translation process, known as DNS resolution, necessitates the use of many hardware components. The primary DNS server is the most critical.


How do DNS servers respond to DNS queries?


Four servers work together to send an IP address to the client in a standard DNS query without caching: recursive resolvers, root nameservers, TLD nameservers, and authoritative nameservers.

The DNS recursor (also known as the DNS resolver) is a server that receives the DNS client’s query and then communicates with other DNS servers to find the proper IP address. When the resolver gets the client’s request, it acts as a client, contacting the other three types of DNS servers in search of the correct IP address.
The resolver begins by querying the root nameserver. The root server is the initial stage in converting human-readable domain names into IP addresses (resolving). The root server then answers to the resolver by providing the address of a top-level domain (TLD) DNS server (such as.com or.net) that holds information for its domains.

The resolver then requests the TLD server. The TLD server returns the IP address of the domain’s authoritative nameserver. The recursor then contacts the authoritative nameserver, responding with the origin server’s IP address.

Finally, the resolver will return to the client the IP address of the origin server. Using this IP address, the client may then submit a query straight to the origin server, and the origin server will react by returning website data that the web browser can decode and display.

What exactly is DNS caching?


Recursive resolvers can resolve DNS requests utilizing cached data in addition to the procedure described above. The resolver will save the correct IP address for a particular website in its cache for a limited length of time after getting it. If any additional clients submit requests for that domain name during this period, the resolver can skip the regular DNS search procedure and just respond to the client with the IP address held in the cache.

a webite with cdn seurityagainst ddos attacks

Increased Security with CDN

DDoS attacks have grown in popularity as a method for cybercriminals to launch an attack against your website. They don’t require any hacking skills and are all about flooding your website with traffic. A cybercriminal can purchase a botnet for a few dollars and launch a massive amount of traffic to your site with the intent of slowing it down or rendering it inaccessible entirely. Another reason for their popularity is that they are usually used with another cyberattack. DDoS attacks serve as a decoy while a more dangerous attack, such as SQL injection, is launched against your website. SQL injection is an attack in which malicious SQL statements are inserted into a database entry for execution. It enables cybercriminals to impersonate others.

What exactly is a CDN?

The term “content delivery network” (CDN) refers to a system or network of geographically distributed servers worldwide that aims to deliver web content from the origin server to end-users from anywhere in the world. It accomplishes this by storing a cached or copied version of your website’s web page, including the elements required to load, such as HTML, CSS, Javascript, images, and videos.
When a website visitor wants to view a specific web page, a request is sent from the user’s computer or mobile device. All submissions will be routed to the origin server if a CDN is not used. Even in the absence of a DDoS attack, high traffic volume can overwhelm the origin server, resulting in a server crash.

This ability to handle high traffic volumes is also helpful in dealing with unusually high volumes of traffic caused by DDoS attacks. The sheer capacity of cloud CDN solutions’ IT infrastructure can absorb the most potent low-level DDoS attacks.

Tools for Proactive Monitoring and Cleaning

Of course, simply absorbing high volumes of traffic will not suffice. As a result, top CDN operators have various tools to protect websites from multiple types of attacks. These tools are capable of proactive monitoring for potential attacks and inspection and cleansing of traffic for unnatural and harmful visits.

All five major TLS extensions are supported.

TLS, or Transport Layer Security, is a protocol that provides authentication, privacy, and data integrity between the origin server and the CDN server and then between the CDN server and the end-user.

Green Plus CDN, as one of the leading CDN platform providers, supports all five major TLS extensions, including HTTP/2, OCSP Stapling, Dynamic record sizing, ALPN, and Perfect forward secrecy.

green and gray car. How blockchain affect automative industry

Blockchain and Automotive Industry

From components suppliers and manufacturers to consumers and safety regulators, every aspect of the complex automotive industry ecosystem relies on a network of transactions and knowledge. This process starts long before a car is created and continues long after being purchased. The quantity of data that automobile industry companies must keep track of is expanding, from support for developing hardware and services to identifying the source and location of faulty or counterfeit parts. With a shared record of ownership, location, and movement of components and items, Green Plus Blockchain can help increase efficiency, transparency, and trust. Furthermore, the flexibility of blockchain records makes them ideal for keeping up with emerging business models.


Vehicles are increasingly required to include secure, seamless mobility services and the ability to handle micropayments and other interactions with ride-sharing services, intelligent transportation infrastructure, and electric vehicle charging. With Green Plus blockchain, tolls, congestion fees, electric charging, parking, and even payments between automobiles are all possible. With access to the trunk, the system can also allow a car to be utilized as a certain drop point for parcels.


Traceability is critical in this market for knowing a vehicle’s post-sale movements. Makers must trace vehicle movements for regulators and buyers to ensure safety and dependability.
Because of its traceability and transparency, Green Plus blockchain is ideal for tracking purchases, shipping arrangements, dealer transactions, and millions of micropayments in mobility services. Smart contracts built on the blockchain go far beyond tracking and visibility, allowing cash to be released only after a satisfying delivery.

 

supply chain

Blockchain and Supply Chain

A supply chain is a network that connects a firm to its suppliers and consumers. It encompasses all transactions that occur throughout the transformation of raw materials into marketable items. As a result, all data must be very highly visible and secure. In today’s environment, businesses are accelerating the digitalization of supply chains by implementing new technologies such as blockchain to increase data quality, integrity, and visibility, allowing companies to respond to issues in real-time.


This article explains how supply chain executives are already utilizing data to deal with disruptions and how blockchain adoption will assist in the future.

How Blockchain affects Supply chain


Supply chain interruptions don’t just affect the supply chain; they affect the entire firm, potentially resulting in revenue loss and cost increases. Supply chain interruptions prevent the company from attaining its full potential by delaying product launches, reducing productivity, and degrading customer service.


These Interruptions have exacerbated the planning difficulties businesses confront when they lack insight into their supply chains. If you don’t know where your items are at any one moment, it’s hard to plan or make consumer obligations. If new suppliers or buyers cannot be onboarded promptly, the entire firm suffers.


Blockchain allows multiparty processes to be built around reliable shared and distributed data beyond corporate (and maybe national) boundaries. Improvements such as a greater awareness of where things are can be critical to overcoming the issues that many supply chain companies issues. Blockchain infrastructure helps businesses know the condition of items, increase data accuracy, and enhance supplier management.


Blockchain has the potential to alter supply networks, particularly in terms of data usage. Considerable increases in data quality, as well as significant gains in data integrity and visibility, are just a few of the benefits. Reduced risk, higher customer confidence, enhanced flexibility and sustainability, faster speed, and many other benefits have resulted for supply chain organizations and enterprises as a whole.

 

insurance and blockchain

How Blockchain Affects Insurance Industry

At the core of the insurance sector, blockchain can simplify and safeguard multi-party operations. Whether you’re dealing with consumers or other parties, Blockchain technology can help you avoid the problems that come with many parties keeping their records. Insurers may use blockchain’s distributed ledger technology to update and validate information against other documents in the network as transactions occur, lowering policy, claim, and relationship management costs, streamlining processes, and improving customer satisfaction. Companies can also generate new revenue and possibilities by developing new business models or insurance products.

In its most basic form, blockchain is a data format that allows for the construction of a digital ledger of transactions and the sharing of such ledgers over a dispersed network of computers. The main advantage of blockchain is that it establishes trust between parties that share data. The information is shared in the form of an electronic list of records or blocks that is encrypted. It can’t be deleted, which helps to maintain user confidence. Once information is recorded, it cannot be modified without modifying all of the other records, ensuring safe user transactions. We can see how this might benefit the life insurance sector since it ensures that data is accurate, safe, and reliable.

 


A transparent blockchain technology that allows several organizations to compile relevant information can speed up claim recovery. Its shared ledger features can aid insurers in reaching agreements on claims, establishing confidence in the sharing of evidence, and improving the entire customer experience.
Our shared ledger openness can aid employers in reducing mistakes, resulting in better claims processing, provider management, and cheaper operating costs.


From managing contacts among reinsurers to keeping shared accounts and managing claims payments, blockchain helps assure contract certainty and increase risk-handling skills. Blockchain can reduce the requirement for participating firms to balance their reinsurance accounts regularly by providing transparency across the entire value chain.