Elastic Compute Service (ECS) provides users with an environment of virtual servers that run dynamically on demand. For the virtual server provided by ECS, users can perform various operations as if they were using a physical machine. ECS allows users to rent multiple virtual servers to complete various tasks according to their needs. During the running process, users can also dynamically increase or decrease the number of virtual servers according to the needs of computing resources.
For users, elastic computing services solve the problems of low resource utilization and high IT costs caused by cyclical changes in business. At the same time, elastic computing services can also reduce the IT procurement cycle, provide reliable data storage and scalability, and effectively reduce network security threats.
For elastic computing services, Alibaba Cloud also provides three products: cloud monitoring, cloud shield, and load balancing.
Cloud monitoring provides third-party monitoring services for cloud servers, which can detect faults in time and alarm in various ways, including monitoring of website, Ping, TCP port, UDP port, DNS, POP3, SMTP, FTP, etc. In addition to providing safe and effective monitoring services for ECS, cloud monitoring can also provide monitoring services for other free servers. Users can achieve various monitoring needs through simple configuration.
Yundun provides one-stop security value-added services for cloud servers, including security checkup (webpage vulnerability detection, web page crash detection), security housekeeper (anti-DDOS service, port security detection, website backdoor detection, remote login reminder, host password brute force cracking) defense), etc.
Server Load Balancer (SLB) virtualizes multiple cloud server resources located in the same data center into a high-performance, high-availability application service pool by setting virtual IPs, and then distributes network requests from clients according to application characteristics to the cloud server pool. SLB will check the health status of ECSs in the pool and automatically isolate ECSs in abnormal state. At the same time, SLB can also enhance the anti-attack capability of the cloud server pool and securely isolate applications and cloud servers. Cloud servers can transparently access SLB without special settings.