Friday, 16 October 2020

DNS resolvers play a key role in converting Web links to IP addresses, acting as a link between your computer and the Internet's DNS infrastructure. A DNS resolver is a local server that stores a central database of DNS nameservers and manages DNS requests for all the clients on your network. With DNS resolvers, your computer does not need to store addresses for multiple online nameservers, a process which is difficult to manage effectively.

How DNS Works

DNS systems allow network clients to convert Universal Resource Locators, or URLs, into IP addresses. This is a key part of network operation, as computers and other devices generally need to know each other's IP address in order to communicate over a network. When you provide your computer with a Web link, the computer issues a DNS request asking for the IP address that corresponds to that address. The DNS then responds with the corresponding address, allowing the computer to communicate with the server that hosts that site.

Role of Resolvers

A DNS resolver is a server that acts as a “first port of call” in the DNS process. When a network client contacts a resolver, that resolver contacts multiple authoritative nameservers -- the servers that actually hold the IP address information -- in order to get the necessary IP address. DNS requests may involve nameservers all over the world.

Increased Efficiency

DNS resolvers increase the efficiency of a DNS system. Without resolvers, every computer on a network would need to be provided with the addresses of several authoritative nameservers in order to resolve addresses. In addition, each computer's server list would need to be kept up to date individually. Using resolvers means that all the clients on a network have access to a central list of authoritative nameservers, reducing the management time needed to keep the system current.

Performance Benefits

Some DNS resolvers cache the results they send to clients. This means that if another client requests the same IP address at a later time, the resolver can provide that IP address directly without having to contact any external nameservers. Storing results locally improves DNS response time and helps to reduce network load, because certain DNS results do not need to leave the local network in order to be fulfilled.

Monday, 12 October 2020

Free Website Hosting, Web Hosting Reviews, Web Hosting Guides, Compare Web Hosting
As the name suggests, free website hosting is a free non-paid web hosting service. There are many web hosts who provide subdomains to anyone who want to make website. Some of such popular free web hosts include Blogger and Wordpress. When you make your websites with these free website hosting services, your website gets such name as yoursite.blogspot.com and yoursite.wordpress.com. If you want to get a website with a domain name that doesn’t include any external site’s name, you must buy domain and then get web hosting which is usually a paid service. However, there are many web hosting companies that provide free web hosting with some or the other products/services that you buy from them.

Benefits of Free Website Hosting


There is this single biggest advantage of free website hosting and that is- it comes free without any cost. Now if you are amazed at why these free web hosting companies let you make a website free of cost then you may rest assured that they do not make any loss in this business. When you make your free website with them, they use your websites to place advertisements, banners and other forms of advertising media to earn revenue. Sometimes, the revenue from advertisement is shared with the owner of the website and sometimes it’s not. For example, when you get free web hosting from blogger and if you use their AdSense service, you get a share in the revenue generated from the advertisements that they place on your websites. On the other hand, when you make a free website using wordpress, you do not have any control on the placement or revenue generated from your free hosted website. The situation is altogether different when you get website hosted through paid web hosting service. You have full control over your website and it’s your decision whether you want to place advertisements on your site or not and if yes then the whole of the revenue generated from the website advertisement banners come to you only. There are many other differences between free and paid web hosting services.

Differences between Free and Paid Web Hosting


Here are some major differences between free and paid website hosting services. It will give you a better understanding about what is free web hosting service and whether it’s worth to opt for such free hosting for websites?

Read More: Free Web Hosting


Advertisements on your website are controlled by the web hosting company that provides you with the free web hosting. It can use pop-ups, banners or any other advertisement on your site on which you do not have control. If also you have partial control, you may only decide what size of banner would be displayed where on your site. You won’t have control over what advertisement you will show on the website. On the contrary, when you avail paid web hosting, you have full control over your website and no outsider can decide anything for it.

Customer support is missing for free website hosting. Something which comes free cannot be asked to come with value added services. If something goes wrong with your website, there’s no customer support for websites made with free hosting. On the other hand, paid web hosting services not only give technical support to the customers but they also provide them with help guides, tutorials etc.

Low bandwidth and lesser data transfer capacity makes free website hosting vulnerable to greater downtime whereas paid website hosting gives you optimum bandwidth and data transfer for maximum uptime. You also can’t upload more images or videos when using free web hosting service as you don’t get enough disk space.

However, you can have best from the both worlds if you are ready to pay a little amount for any service that a web hosting company offers. For example, we offer a good web hosting package which comes with free online website builder and you have to just pay nominal rates. You get web hosting free along with many other facilities and services like email ID and free Google Adwords credit that you may use to advertise your website. This offer is better than any free website hosting service as you get full control over your website at practically very low cost! So, why wait!

Monday, 5 October 2020

Web Hosting, Compare Web Hosting, Web Hosting Reviews


Custom email may seem like a small dot in the ocean with regards to branding your business, but it’s undeniably important. What do we say about first impressions? They count. In just one glance, you can make a meaningful impact on your, clients, customers and/or acquaintances. As a general rule of thumb, use a custom email address to give your business legitimacy, whereas a standard (e.g. @gmail.com) email is more appropriate for your personal stuff.

Creating a custom email address is similar to how you go about building your website. First, you need to pick an email platform to use, then install it to your custom domain. Let’s imagine Jamie’s bike shop. Shop owner Jamie wanted to distinguish himself from his rivals with a professional email address.

To set up a custom email address that matched his domain, Jamie would pick an email host. An email host will arrange that Jamie can email from jamie@jamiesbike.shop. Each host will offer a slightly different set of features, a different interface to access emails (a webmail client), and a range of prices.

Can I Host My Email on My Own Server?

Email hosting and web hosting are similar in the sense that neither has to be hosted by your registrar or web host providers. Emails can be routed to different servers and the routing is handled by entries in the DNS (Domain Name System) records.

By updating DNS records, it’s possible to direct different types of traffic to different servers. Making entries to CNAME records for example will create sub-domains to route traffic to different servers and/or services such as calendar, email and shared documents.

If you choose to host your own email, you’re going to need… a server. The fun doesn't stop there. Your server needs someone who knows how to manage it, so you'll want extra staff. Probably someone with an IT degree. And that's not all. You also need to consider:

◉ The expense of hardware
◉ Limited network capacity
◉ Storage limits
◉ Software licenses

The responsibility of backing up your email data. In addition to the labor costs involved in all this, these are just a few of the reasons that most businesses opt for the services of a professional email host, as opposed to running their own in-house server.

There are many challenges linked to in-house servers, including insufficient security, failed backups, difficulty syncing messages across multiple devices (desktop computers, tablets, and cell phones). These are things which can spell disaster for a business. Luckily, there are many alternatives available to avoid the challenges mentioned above.

There is a lot to be gained from choosing a hosted email provider rather than managing this yourself. With the number of options available today, there is a good fit out there for any size of business. It wouldn’t cost much to launch, but the time it takes to set one up, and effectively managing the console are the obvious reasons for subscribing to a service, instead of launching an email server of your own.

With a hosted email service, you don’t need to purchase any hardware, and it’s unlikely that you will have any software to set up. Setting up email hosting with a hosting provider is easy, you just need basic computer literacy and should be able to set the server up without much trouble.

Monday, 28 September 2020

DNS, Web Hosting, Compare Web Hosting, Web Hosting Reviews

DNS is an application layer protocol. All application layer protocols use one of the two transport layer protocols, UDP and TCP. TCP is reliable and UDP is not reliable. DNS is supposed to be reliable, but it uses UDP, why?

There are following interesting facts about TCP and UDP on the transport layer that justify the above.

1) UDP is much faster. TCP is slow as it requires 3-way handshake. The load on DNS servers is also an important factor. DNS servers (since they use UDP) don’t have to keep connections.

2) DNS requests are generally very small and fit well within UDP segments.

2) UDP is not reliable, but reliability can added on application layer. An application can use UDP and can be reliable by using a timeout and resend at the application layer.

Actually, DNS primarily uses the User Datagram Protocol (UDP) on port number 53 to serve requests. DNS queries consist of a single UDP request from the client followed by a single UDP reply from the server. When the length of the answer exceeds 512 bytes and both client and server support EDNS, larger UDP packets are used. Otherwise, the query is sent again using the Transmission Control Protocol (TCP). TCP is also used for tasks such as zone transfers. Some resolver implementations use TCP for all queries.

Monday, 21 September 2020

Cloud Server, Dedicated Server, Web Hosting, Hosting Review

Confused about your options when it comes to cloud computing and dedicated hosting for your application or website? Below, you’ll find a definition of each followed by an overview of their differences.

Cloud Servers


Cloud servers can be configured to provide levels of performance, security and control similar to those of a dedicated server. But instead of being hosted on physical hardware that’s solely used by you, they reside in a shared “virtualized” environment that’s managed by your cloud hosting provider. You benefit from the economies of scale of sharing hardware with other customers. And, you only pay for the exact amount of server space used. Cloud servers also allow you to scale resources up or down, depending on demand, so that you're not paying for idle infrastructure costs when demand is low.

With cloud servers, you can optimize IT performance without the huge costs associated with purchasing and managing fully dedicated infrastructure. Businesses with variable demands and workloads often find that cloud servers are an ideal fit.

Dedicated Servers


A dedicated server is a physical server that is purchased or rented entirely for your own business needs. Dedicated servers are typically used by large businesses and organizations that require exceptionally high levels of data security, or organizations that have steady, high demands for server capacity.

With dedicated servers, businesses still need the IT capacity and expertise to manage ongoing maintenance, patches and upgrades. Businesses using I/O-heavy applications, such as databases and big data platforms, find significant value in bare metal dedicated hardware.

Thursday, 17 September 2020

Generally, a Server is a high-end network computer managing connected devices (“clients”) and their access to multiple applications as a central resource, whereas a Database is a repository that supports an application’s back-end data processing.

Web Hoting Reviews, Compare Web Hosting, Hosting Guides, Hosting Database, Hosting Server

What is a Server?


Depending on an organization’s network size, number of users, accessibility requirements, storage capacity etc., servers can be configured to manage one or more functions on the network.  Examples of different servers include:

◉ Database Server is a computer hosting one or several databases and manages the accessibility between client and data over a network.

◉ Web Server hosting web applications and managing accessibility, e.g. Microsoft IIS (Internet Information Server) or Apache.

◉ Mail Server that manages the email exchange for a business and is responsible for sending/receiving emails promptly.

◉ FTP Server stores files and facilitates easier file transfer (uploads and downloads) between connected devices over a local area network or remotely via an internet connection.

◉ A single server is also capable of managing several functions at once, as long as the hardware specifications meet the demands of the network.

◉ For large enterprise companies and data centers, servers are rack-mounted, and designed for a specific server function. Rack-mounted server are thin, using less space and advanced capabilities to hot-swop hard drives without disrupting the network.

Web Hoting Reviews, Compare Web Hosting, Hosting Guides, Hosting Database, Hosting Server

What is a Database?


◉ Database were initially “flat files” displaying simple columns and rows to store data, but today, databases are relational, allowing complex queries across multiple database tables and database sets.

◉ Relational databases provide users with greater use and flexibility to manage the data in the repository, using database programs such as Microsoft SQL and MySQL.

◉ A database comprises three elements to form a database management system (DMBS). The physical database is the repository, the database engine is the software allowing access to the data, and the database schema is the specified structure of the data.

◉ Databases can store most file types, including numeric, text, and multimedia and has a data structure to organize the stored information.

For example, in a company, an employee database table would have the relevant columns for personal details (Name, Surname, Address, etc) and a profile picture could also be stored for each employee, all residing the database.

Similarities

◉ Virtualization is fast-becoming a popular option for larger organizations, where databases and servers can operate as virtual instances, in virtual environments.

◉ Resource intensive applications and tasks perform better with virtualization as multiple simulated environments are created.

◉ A Server can be virtualized providing multiple instances of the Server and a virtual Database can be be configured on a physical server or virtual server.

◉ Using entry-level databases and servers require a degree of computer literacy, the trend in graphical interfaces, specifically web-based, is making it more user-friendly to manage servers and databases without having to interfere with any hardware.

◉ In organizations, databases are usually managed by database administrators, database developers, and other database specialists, and servers are managed by network administrators and other network specialists.

◉ Servers and Databases are able to manage concurrent processing by multiple users, and have security features managing user rights and access.

◉ Both have backup, recovery, and redundancy capabilities.

◉ Based on software licensed options, upgrading a database version or server operating software is fairly simple with the latest systems providing user-friendly wizards that guide users through a version upgrade of the software.

The Main Difference Between a Server and Database

◉ Related information is collected, stored, and maintained in a Database and is primarily the data repository.

◉ A Server is a hardware unit managing multiple or specific functions for a network and connected clients.

Primary Functions

◉ Databases are used for storing data and organizations that transact and store large amounts of data, need powerful database software to manage the data, like Oracle or MS SQL.

◉ Databases provide more control over data and allow users to transform and enrich the data for all aspects of business reporting purposes and manage back-end transacting.

◉ Servers connected to a high-volume network, managing multiple and simultaneous transactions need to have the appropriate technical make-up to support the network efficiently.

Database Types

◉ Databases are implemented according to the current and expected volume of data. For individuals and home office users, desktop databases, like Microsoft Access, are suitable, but for larger, enterprise organizations, database systems are installed on servers or built on dedicated database servers.
◉ The type of database depends on the use requirements of the users, network, and organization. Database types include:

     ◉ A Relational Database Management System (RDBMS)
     ◉ An Operational Database allows users to transform the data in real-time, such as modify, delete, add, etc.
     ◉ NoSQL and Object-oriented databases follow a different approach to the table, row, column of the RDBMS, and stores data in chunks and simplifies the data manipulation and search functionalities.
     ◉ A Cloud Database is hosted typically in a remote data center, and access to the database is provided through a service with the cloud host.
     ◉ Big Data are databases that manage massive, complex data sets that goes beyond the capabilities of standard database software applications.

Server Types

◉ A Server is typically defined by its’ configuration and allocation as a dedicated resource, such as the following:

     ◉ A Database Server is a computer hosting one or several databases and manages the accessibility between client and data over a network.
     ◉ A Web Server, like Microsoft IIS (Internet Information Server) or Apache, hosts web applications and manages accessibility and interaction with the web content.
     ◉ A Mail Server manages the email exchange for a business and is responsible for sending/receiving emails promptly.
     ◉ A File Server is dedicated to storing all users’ file and network data files.
     ◉ A Print Server co-ordinates all connected printers, and manages user printing.
     ◉ A Domain Server manages the authentication and accessibility of connected devices on the network, physically and remotely.
     ◉ An FTP (File Transfer Protocol) Server stores files and facilitates easier file transfer (uploads and downloads) between connected devices which are on a local area network or remotely via an internet connection.

◉ A single server is also capable of managing several functions at once, as long as the hardware specifications are suited to the demands of the network.

Scalability

◉ Based on licensed options, increasing the size of a database is fairly simple if using a DBMS like MS SQL, where the size of the log and data files can be increased, with limits from 2TB.

◉ To extend a server’s manufactured technical capability, an additional investment in hardware and memory would be required.

Migration

◉ Migration can be a complex task that requires careful planning when moving an entire server configuration or database system to a new platform, such as a new hardware unit to replace an old server, or moving a database system to the cloud.

◉ For server migration, it is practical to recreate the old (required parts) of the server configuration on a new hardware unit, and requires thorough testing and generally some tweaking.

◉ Database migrations to a new software platform have many challenges with new and different features, compatible data formats, and schemas, etc.

◉ A lock down on changes to the database would be required before migration to avoid having different versions of the same database, and once the new database has been implemented, it is then released into the production environment.

Monday, 14 September 2020

Domain, Email hosting, Web hosting, Compare Web Hosting, Web Hosting Reviews

Since there’s a lot of confusion around the topic of domains, web hosting and email hosting, we’ll quickly review these three types of online hosting.

Domain Hosting and Registration


Domain hosts store domain names and facilitate their registration. First, you register a domain like yourdomain.com with a domain registrar, and just like a street address, the URL directs people to your website's location. If you’re using a domain registered through a third-party provider, that company is your domain host.

For your website to appear online, you need actual file hosting. You’ll often find domain and web hosting offered as a package, with most companies offering domain, email, and web hosting as a bundle.

Web Hosting


Web Hosting is a service that provides computer resources such as server space, memory, and bandwidth needed for your website files to live on the internet. Users can create and store website content on a web hosts servers so it can be viewed online via a web browser.

If you imagine a website plus all its content as a store, a web host simply provides the physical space to display the store’s products—in this case, the website content including the text, images, videos and anything else that make up the site's content.

There are different styles of hosting available to reflect the needs of different websites. Web hosting plans range from shared hosting with multiple sites sharing a single server to dedicated hosting, in which one customer uses an entire server’s space and bandwidth.

Email Hosting


Email hosting is a service in which your email messages and associated files are all stored on a server. When you receive an email to your website’s domain address, the email is routed across the internet and stored on the recipient server. At this point, the server administrators will determine which action to take (reply or ignore) bearing in mind any spam filters, re-routing requests and if the sender is on any blacklists.

The server hosting email can be the same server that’s hosting your website content, a server managed by another host, or two different servers managed by the same hosting company. Email hosting providers might specialize in offering only email hosting services, but it’s more typical for companies to offer bundled emails and web hosting packages these days.

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