21 Dec

New Year Offers have kicked off!

Webairy’s New Year offers have finally kicked off to a start, with registrations and checkouts coming in by the minutes! With the offer in place Webairy has launched their most affordable Cloud VPS packages starting at the price of only $5 per month from the request of thousands of our customers! This New Years offer will also cover 50% Off on our shared packages and 50% Off on our Reseller packages! So Grab the offer while it last, as the clock ticks on!

Deal Details: The offer will stand from today (21st of December, 12AM) up until ( 5th of January)

Website Link: http://www.webairy.com
Registration Link: http://www.webairy.com/portal-home/?ccce=register

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11 Dec

Horizontal and Vertical Scaling

Scalability is the capability of a system to expand from either existing configurations to handle increasing amount of load or by adding an extra hardware. There are mainly two types of scalabilities, horizontal and vertical. Horizontal scaling, is adding more servers to your application to spread the load. The simplest case of horizontal scaling may be to move your database onto a separate machine from your web server. Where as Vertical scaling is to add more RAM, more processors, more bandwidth, or more storage to your machine.

Horizontal scaling can only be applied to applications built in layers that can run on separate machines. Horizontal scaling applies really well to on-demand cloud server architectures, such as Amazon’s EC2 hosting platform. Horizontal scaling can also facilitate redundancy – having each layer running on multiple servers means that if any single machine fails, your application keeps running. While Vertical scaling can be a quick and easy way to get your application’s level of service back up to standard. On the negative side, vertical scaling will only get you so far. Upgrading a single server beyond a certain level can become very expensive, and often involves downtime and comes with an upper limit.

So what scaling strategy best suit your needs? It all comes down to the application it must be implemented on. There are many applications that can only scale vertically. They can only be run on a single server. You have a clear strategy choice with these applications! But, a well written application should scale horizontally very easily. An application that is designed to scale horizontally can also be scaled vertically. So your still left with an open choice. You can either weigh up the cost of vertically scaling with an extra bit of RAM vs horizontally adding a new server in your cluster.

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09 Dec

High Availability and Disaster Recovery

The terms High Availability (HA) and Disaster Recovery (DR) are frequently heard and are used interchangeably. Which is why it is important to clarify the distinctions between the two in order for companies to understand the unique capabilities, the role of each and how they can be used most effectively within their organization. High Availability is a technology design that minimizes IT disruptions by providing IT continuity through redundant or fault-tolerant components. While Disaster Recovery is a pre-planned approach for re-establishing IT functions and their supporting components at an alternate facility when normal repair activities cannot recover them in a reasonable time-frame.

Can Disaster Recovery Include High Availability? Disaster recovery can, and it often does, include high availability in the technology design. This configuration often takes the form of implementing highly available clustered servers for an application within a production data center and having backup hardware in the recovery data center. Data from the production server is backed up or replicated to the recovery data center; systems are both protected from component failures at the production data center and can be recovered during a disaster at the recovery data center.

You may also come around end users chatting about adding a “business continuity disaster recovery” solution when they really intend to make a service highly available. More often than not elements of both high availability and disaster recovery are blended in the discussion. If you’re in the role of a service provider listening to requirements and asking for clarification regarding these questions it will help by identifying if geographic diversity is needed and how much down time can be tolerated before a system is restored. Through this you’ll know what to look forward to, and be set on the right path.

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07 Dec

Web Server Farming: how do they work?

A server farm also referred to as server cluster, computer farm or ranch, is a group of computers acting as servers and housed together in a single location. A server farm works by streamlining internal processes by distributing the workload between the individual components of the farm and through which it expedites computing processes by harnessing the power of multiple servers. A Web server farm can be either , a website that has more than one server, or an ISP  (Internet service provider) that provides web hosting services using multiple servers.

The farms rely on load-balancing software’s that can accomplish such tasks as tracking demand for processing power from different machines, prioritizing the tasks and scheduling and rescheduling them depending on priority and demand that users put on the network. When one server in the farm fails, another can step- in as a backup. Such as in a business network, a server farm or cluster might perform such services as providing centralized access control, file access, printer sharing, and backup for workstation users. The servers may have individual operating systems or a shared operating system and may also be set up to provide load balancing when there are many server requests. As for on the Internet, a Web server farm, or simply Web farm, may refer to a Website that uses two or more servers to handle user requests. Typically, serving user requests for the files (pages) of a Web site can be handled by a single server. However, larger websites may require multiple servers.

This is why combining servers and processing power into a single entity has become and have been relatively common for many years in research and academic institutions. As of Today, more and more companies are utilizing server farms as a way of handling the enormous amount of computerization of tasks and services that they require through Web Server Farming.

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04 Dec

Amazon Internet of Things: The world of Cloud Computing

Internet of things, the word may seem to describe itself. IoT (Internet of Things) is a network of physical Objects or ‘Things’ embedded with Software’s, electronics, network connectivity and sensors. It plays a role of collecting and exchanging data, allowing objects to be sensed and controlled remotely across existing network infrastructures. Therefore creating more opportunities for direct integration between the computer-based system and the physical world, and also resulting in economic benefit, improved efficiency and accuracy. In recent news, Amazon.com has set aims on parlaying its cloud computing dominance into a big stake in the world of IoT (Internet of Things) . The e-commerce giant launched ‘AWS IoT’ this October, a new cloud computing service in its Amazon Web Services division.

Amazon’s IoT, allows customers to build their own cloud apps to remotely control machinery, supply chains and track inventory, and even handle thousands of other tasks. In a way Amazon is playing catch up with some of the already formed cloud players, as well as hosting smaller start-ups that have been offering cloud services tied up to development platforms for many years, a portion of these small players such as Electric Imp, Particle (formerly Spark Labs), Ayla Networks have been hosting their cloud offerings on AWS. If Amazon keeps their game up, they might find themselves competing with a key partner.

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02 Dec

Usages of Proxy Server

In computer networks, a proxy server is a server (a computer system or an application) that acts as an intermediary for requests from clients seeking resources from other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource available from a different server and the proxy server evaluates the request as a way to simplify and control its complexity. Proxies were invented to add structure and encapsulation to distributed systems. Today, most proxies are web proxies, facilitating access to content on the World Wide Web and providing anonymity.

There are 3 main types of proxy’s: Forward proxy, open, and reverse proxy. A forward proxy is the same one described above where the proxy server forwards the client’s request to the target server to establish a communication between the two. An open proxy is a type of forwarding proxy that is openly available to any Internet user. Most often, an open proxy is used by Internet users to conceal their IP address so that they remain anonymous during their web activity. Unlike a forwarding proxy where the client knows that it is connecting through a proxy, a reverse proxy appears to the client as an ordinary server. However, when the client requests resources from this server, it forwards those requests to the target server (actual server where the resources reside) so as to fetch back the requested resource and forward the same to the client. Here, the client is given an impression that it is connecting to the actual server, but in reality there exists a reverse proxy residing between the client and the actual server.

Reverse proxies are often used to reduce load on the actual server by load balancing, to enhance security and to cache static content, so that they can be served faster to the client. Often big companies like Google which get a large number of hits maintain a reverse proxy to enhance the performance of their servers. It’s not a surprise that whenever you are connecting to google.com, you are only connecting to a reverse proxy that forwards your search queries to the actual servers to return the results back to you.

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01 Dec

Black Friday to Cyber Monday sales aftermath!

We have managed to pull off a ground breaking amount of sales from our Black Friday to Cyber Monday offer due to which we are most certainly looking forward to introducing more offers and deals as we spread our services across this region! We would like to say a big thank you to our new customers and for the amount of customers that overflowed our projected customer mark up! We’re glad to have you on board and look forward to providing you with our on going support and our 99.9% up-time! So Buckle up your seat-belts as we get ready for lift off!

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18 Nov

Black Friday to Cyber Monday deal!

Deal Details: Black Friday (Nov. 27) to Cyber Monday (Nov. 30), 50% off on all packages! Our first top 50 customers will get one year shared web hosting in just Rs.399

Black Friday is coming fast, the day where bargain hunters across the country (and world) try and grab themselves a great deal heading into the festive period. Following up after that is Cyber Monday where online based business will be offering prices and deals that only some of you can imagine. Both events will create an enormous amount of traffic on online shopping as well as offline, which is where Webairy will be introducing its first time ever Black Friday till Cyber Monday deal for those of you located within Pakistan! The deal will consist of a limited time offer to the first 50 customers that come in first! So don’t miss your chance on availing such an offer that no web hosting company will be providing on these following days! The offer will only stand from Black Friday (Nov. 27, 2015) to Cyber Monday (Nov. 30, 2015). So don’t wait on missing out on such an offer while it stands! Be ready for it!

If you would to sign-up before the deal kicks off feel free to visit this page: http://www.webairy.com/pre-signup

 

 

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17 Nov

DNS Failover, Overcome your downtime!

As your business grows, it becomes more and more mission critical, and any amount of downtime is damaging. You could potentially lose hundreds, if not even thousands of dollars for every minute your site is down. Not to mention, it may also hurt your brand image and customers confidence. This is why firms and individuals today rely mostly on DNS failover. DNS Failover monitors your server and if unavailable for a certain period of time it will dynamically update your DNS records accordingly so that your domain name points to an available server instead.

DNS Failover is essentially a two-step process. The first step involves actively monitoring the health of your servers. Monitoring is usually carried out by ping or  ICMP (Internet Control Message Protocol) to verify that your HTTP server is functioning. The health of the servers can be assessed every few minutes, while more advanced services allow you to configure your monitoring time settings. In the second step, DNS records are dynamically updated in order to resolve traffic to a backup host in case the primary server is down. Once your primary server is back up and running, traffic is automatically directed towards its original IP address. Some of the reason why outages can and often do occur, happen to be because of: Hardware failures, Malicious attacks (DDoS, hackers), Scheduled maintenance and upgrades, man-made or even natural disasters.This is where DNS Failover helps prevent somewhat of downtime, allowing firms/individuals with time to fix and take care of the problems occurring.

Though it may seem DNS Failover is the complete package, it does not come without limitations. In order for it to work, you need to have backup locations for your site and applications. Even if DNS records are quickly updated once an outage has been detected, ISPs need to update their DNS cache records, which is normally based on TTL (Time to Live). Until that occurs, some users will still be directed to the downed primary server.

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12 Nov

Network Latency: Issues we all may come across

Network latency is the term used to indicate any kind of delay that happens in data communication over a network. Network connections in which small delays occur are called low-latency networks whereas network connections which suffers from long delays are called high-latency networks. High latency creates bottlenecks in any network communication. It prevents the data from taking full advantage of the network pipe and effectively decreases the communication bandwidth. The impact of network latency on bandwidth can be temporary or persistent based on the source of the delays.

Both bandwidth and latency depend on more than your Internet connection – they are affected by your network hardware, the remote server’s location and connection, and the Internet routers between your computer and the server. The packets of data don’t travel through routers instantly. Each router a packet travels through introduces a delay of a few milliseconds, which can add up if the packet has to travel through more than a few routers to reach the other side of the world. However, some types of connections – like satellite Internet connections – have high latency even in the best conditions. It generally takes between 500 and 700ms for a packet to reach an Internet service provider over a satellite Internet connection.

Latency isn’t just a problem for satellite Internet connections, however. You can probably browse a website hosted on another continent without noticing latency very much, but if you are in California and browsing a website with servers only located in Europe, the latency may be more noticable. There is no doubt to it that latency is always with us; it’s just a matter of how significant it is. At low latencies, data should transfer almost instantaneously and we shouldn’t be able to notice a delay. As latencies increase, we begin to notice more of the delay.

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