Berlisensi | Konsultan | Jasa IT | Aplikasi | Data Center | Jaringan
Amazon Virtual Private Cloud (Amazon VPC) lets you set up a private cloud (a private, isolated section) within the Amazon Web Services (AWS) cloud computing service. Using Amazon VPC, organizations can launch AWS resources in a virtual network topology.
AWS users can connect to Amazon VPC through an Internet gateway, an on-premises data center through the Hardware Virtual Private Network (VPN) Connection tool or through a variety of AWS tools and other vendor VPCs.
Amazon VPC allows for more granular control of the cloud network, which provides an extra layer of security for workloads and data. A user can define network configurations such as IP address range as well as route tables and manage network gateways and subnets; subnets are smaller separate parts of the overall network. Amazon VPC enables a developer to create security groups to set limits on inbound and outbound traffic to Amazon Elastic Compute Cloud (EC2) instances and network access control lists to allow or deny traffic to subnets.
When creating an EC2 instance, users can assign an IP address to the instance, as long as it is within the IP address range of the associated subnet, not assigned to another interface and not reserved by Amazon. VPC routers enable communication between instances in different subnets. Routers also allow subnets, Internet gateways and virtual private gateways to communicate with each other. Internet gateways allow instances to communicate with EC2 resources that reside outside of a VPC and in other regions. AWS also offers several options to connect EC2 instances within a VPC to Amazon Simple Storage Service.
AWS provides a "Start VPC Wizard," which presents four basic network architecture options that dictate whether subnets are public or private and whether the user prefers to have access through the Hardware VPN. VPCs can span multiple Availability Zones (AZs), but subnets must reside within a single AZ. A user can also deploy Amazon CloudWatch and Auto Scaling within an Amazon VPC to monitor resources and allow them to meet spikes in workload demand.
When AWS users first provision EC2 resources, they are launched within a default VPC if the subnet ID is left unspecified. Default VPCs offer the same level of security and network control as regular Amazon VPCs, but they allow a user to create and manage resources using the AWS Management Console, EC2-Classic command line or API.
AWS limits the size of each VPC, a user cannot change the size once the VPC has been created. Amazon VPC also sets a limit of 200 subnets per VPC, each of which can support a minimum of 14 IP addresses. AWS places further limitations per account / per region, including limiting the number of VPCs to five, the number of Elastic IP addresses to five, the number of Internet gateways per VPC to one, the number of virtual private gateways to five and the number of customer gateways to 50.
Amazon VPC provides organizations complete control over the virtual networking environment, including selection of your own IP address range, creation of subnets and configuration of route tables and network gateways.
There is a lot of buzz around in the market of webhosting, information technology and data storage these days. Many companies are using terms as virtual servers or VPS. Few of these companies call it as cloud server or virtual cloud. But what do they really mean by these technical mumbo-jumbo?
Are VPS and VPC i.e. Virtual Private cloud means same? Do they come with same pricing and same set of features?
I thought of throwing some light on the above so people will get more information on this topic.
Let’s first look at Virtual Private Server, also called as VPS. A VPS is the result of splitting one powerful physical server into many virtual servers. The benefits extended by this arrangement include easier management, dynamic resource tuning, and higher reliability than traditional dedicated servers. Actually VPS are also physical servers on bigger host server. One physical server includes number of small VPS. Data stored on these VPS servers is separate from other VPS. We can reboot or restart or terminate one VPS without affecting other VPS or main physical server. If Physical server fails then all VPS on the same server also fail. VPS does not offer high availability. If one VPS is affected by attack like DDOS then all other VPS will also get impact. VPS always share computing resources from physical server and other VPS. Hence RAM, bandwidth and CPU performance can be affected if another VPS on the shared server is demanding a higher load. We need to use only one Operation system by one VPS. There are always limitations like storage which depends on the main physical server which is not scalable.
Now we will look at the Cloud servers. Do this really have cutting edge over VPS? We also call it as Cloud Server or Virtual Private Cloud.
The Cloud Server represents the next evolution in data hosting. The cloud boasts self-healing capabilities, so that if a physical server fails, your virtual cloud moves to a spare. This ensures your server is always accessible. Once can instantly scale Cloud instance up or down to handle periods of increased load. Cloud server further enhances disk performance with Solid State Disk (SSD) accelerated storage. We have more advantages with Virtual Private Cloud as listed below
- Auto Scaling - As I mentioned above we can scale our server space or any resource like RAM in a moment
- High Availability – If a physical server fails, your virtual cloud moves to a spare. This ensures your server is always accessible
- Resources – No effect of other servers on the cloud like VPS. You will not face any RAM lagging or CPU utilization being impacted
- Operating System – Client can choose operating system as per there will
- Data Space – Cloud works on SAN storage so there is no limit for data storage
- Uptime – We can ensure 100% uptime for our services with cloud storage
- Cloud server have advantage over VPS, if you want something more and you are looking for better service uptime scalability and reliability to stay ahead in competition then Cloud is the Answer. Selecting right Service and hosting is an important decision for any business and if you want to make you presence in IT and IT Infrastructure so there is no option other than Cloud.
Call Center 24 Hours
PT. Berlisensi Berkah Mandiri | Konsultan | Jasa IT | Aplikasi | Data Center | Jaringan
Mobile : (+62) 816 289 458