Leased Line, Virtual Private Network (VPN), Cloud Computing, Satellite Communication
Leased line:
The private connection that is offered by telecommunication companies between a number of different locations in exchange for a regular payment is known as a leased line connection. In the UK, some people also call it a private circuit.
Strength
Because the entire connection is secret, the safety level is very high. The link does not make use of any medium that is sourced from the outside world.
Limitation
The leased line connection is quite extensive when considered in the context of Digital Fortress. It is not possible for the data centres to function properly if they are situated in rural areas.
Computing in the Cloud :
Cloud computing refers to the practise of storing, managing, and processing data by utilising a network of remote computers that are hosted on the Internet rather than a local server or a personal computer.
The concept of cloud computing may be broken down into three distinct subfields, which are known as Infrastructure- as- a- service (Iaas), Platform- as- a- service (Paas), and Software- as- a- service (Saas) In the context of Digital Fortress, utilising cloud computing may be one of the appropriate choices for connecting the many sites to one another.
The following is a list of some of the benefits of using cloud computing:
Cost saving:
The implementation of cloud computing can result in cost savings related to the storage of locally hosted servers.
Reliability:
The vast majority of service providers offer an uptime guarantee of 99.99 percent for their servers. In the event that one of the servers fails, the hosted application and services can be quickly moved to any of the other servers that are available.
Manageability:
Manageability is a key benefit of cloud computing, as it enables more effective management of information technology resources through integrated administration.
Focus on business: If the service provider is in charge of managing all of the resources, it will be simple to concentrate on the business at hand.
The following are some of the issues that can arise when using cloud computing (disadvantages):
Security:
There is a potential security risk due to the fact that several users are hosted on the same server.
Limited control:
Because hosting services are supplied by third-party service providers, clients have restricted control over their accounts.
VPN stands for “virtual private network.”
In order to ensure the safety of communications, a virtual network will be constructed within the public network (also known as the internet). It functions in the capacity of a private network. Through the use of a distinct tunnel that has been created within the internet, a secure connection can be established. The use of a virtual private network helps maintain the honesty and secrecy of data.The secure communication channel can be built with a minimal expenditure.
Advantages of using VPN:
The majority of connections are made over the internet. Therefore, the level of security is lower when compared to that of a leased line connection.Optional technical infrastructure that facilitates clear communication between the organisation and its outlying locations
Satellite communication
It is tough to obtain an internet connection because data centres are typically located in faraway regions. Therefore, satellite communication may be the greatest technological solution for providing easy communication between the data centres and the headquarter of the digital fortress.
A satellite dish, which is used to receive communications from satellites, is installed in each of the data centres. Therefore, satellite communication can be utilised to establish connections not only between data centres but also between data centres and the headquarters.