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Fault Tolerance and high availability application architecture based on AWS cloud services AWS provides reliable, fault-tolerant, and highly available system infrastructure and services built on the cloud. Special attention from developers is required. These features have been designed for AWS services, but must be clearly and accurately used. Amazon EC2 provid

Application Architecture of big data and large-scale computing based on AWS cloud services AWS is very popular with large-scale computing solutions, such as scientific computing, simulation, and research projects. These solutions include the collection of a large number of datasets from scientific research devices, measurement devices, or other computing jobs. After the collection, use the analysis of larg

Build secure and highly available checkout services and business extensions for e-commerce sites with AWS. There are a number of steps involved in managing the checkout process and must coordinate the work. Some of these steps, such as credit card transactions, should have specific regulatory requirements. Other parts of the process involve manual operations, such as picking, packing and transporting items from the warehouse.customers want their perso

" -Listener $HTTPListener -SecurityGroup $groupid -subnet@ ($subnet 1, $subnet 2) $instnaces = get-ec2instanceforeach ($i in $instnaces) {if ($i. Instances.tags.value -eq "test") { $instance 2id= $i. Instances.instanceid }} register-elbinstancewithloadbalancer-loadbalancername "Myloadbalance" -Instance@ ($ INSTANCE2ID)After configuring ELB, we then configure Auto Scaling, which first requires generating an image file based on the currently prepared v

Aws vpc, Subnet, CIDR, awsvpccidr What is CIDR? CIDR is short for Classless Inter-Domain Routing. Chinese is Classless Inter-Domain Routing. It is a method for creating additional addresses on the Internet. These addresses are provided to service providers (ISPs ), Then, the ISP assigns the service to the customer. CIDR aggregates routes so that an IP address represents thousands of IP addresses served by the primary backbone provider, thus reducing t

very useful for decoupling of modules in the entire architecture. S3 stores initial data, processing results, and startup scripts. EC2 is the node that processes data. 1. S3 s3 = boto.connect_s3(AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)bucket = s3.get_bucket(DATA_BUCKET)key = bucket.new_key(KEY_BOOT)#key.set_contents_from_string(startup)key.set_contents_from_filename(SCRIPT_BOOT) 　　 2. SQS def send_message_sqs(q, id): message = q.new_message(body

AWS EC2 is logged on by default using the Ec2-user account and has no permissions on many folders. How to execute a command with the root account is a problem. The solution is as follows: 1. Log in to the EC2 server according to the method provided by the official website (recommended for Windows users to use Putty connection) Host: Is the public DNS port for the server: 222. Create the root password and en

What is CIDR?CIDR is an abbreviation for the English Classless Inter-Domain routing, which is classless inter-domain Routing and is a method of creating an additional address on the Internet that is provided to the service provider (ISP),The ISP is then assigned to the customer. CIDR reduces the burden on the Internet router by centralizing the route so that an IP address represents the thousands of IP addresses of the primary backbone provider service.Why Choose CIDR,CIDR?There are two main fun

LINUX VPS does not have root privileges is very difficult to do, and password landing is also convenient.The Linux version of my AWS VPs is Ubuntu 13.10, first signed in with an AWS certificate verified account,1. Change the root passwordsudo passwd root2, sudo chmod 777/etc/ssh/sshd_configUse up and change the authority back.3, Vi/etc/ssh/sshd_configPermitrootlo

costs? Why use AWS As a listed game company, Shanghai Longyou is very cautious about the choice of partners. After careful research and comparison of multiple cloud service platforms, Shanghai Longyou finally chose to use the AWS cloud platform service, the overall architecture is improved by using cloud services such as EC2, VPC, RDS, S3, cloudfront, and route53 of A