博文

目前显示的是 十月, 2022的博文

Regions and Availability Zones

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  Amazon EC2 is hosted in multiple locations world-wide. These locations are composed of AWS Regions, Availability Zones, Local Zones, AWS Outposts, and Wavelength Zones. Each Region is a separate geographic area. Availability Zones are multiple, isolated locations within each Region. Local Zones provide you the ability to place resources, such as compute and storage, in multiple locations closer to your end users. AWS Outposts brings native AWS services, infrastructure, and operating models to virtually any data center, co-location space, or on-premises facility. Wavelength Zones allow developers to build applications that deliver ultra-low latencies to 5G devices and end users. Wavelength deploys standard AWS compute and storage services to the edge of telecommunication carriers' 5G networks. AWS operates state-of-the-art, highly available data centers. Although rare, failures can occur that affect the availability of instances that are in the same location. If you host all of yo...

云计算简介

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 公有云和私有云: 私有云:自己建设给自己使用。所有硬件和软件都是自己提供并且服务的对象只有自己。   公有云:被人建设给很多人使用,而你只是其中一个使用者。 虚拟私有云:   云端有那些服务: SaaS:Google Maps、YouTube、Gmail PaaS: Google的App Engine、Amazon的Elastic Beanstalk IaaS:AWS、Azure、GCP  互联网网关和NAT-GW 从互联网访问时需要使用到互联网网关IGW(Internet Gateway) 私有子网访问互联网需要使用到NAT-GW