About the selection of cloud server and several important parameters , today Websoft9 Give you a simple analysis ：
problem 1、 Choose North China 1、 Or North China 2、 Or South China 1, What's the difference ？
The north China 1、 The north China 2、 south China 1 On the network level, it's LAN （ It's also called the computer room ） The concept of , If you have multiple cloud servers , It's better to choose the same computer room , In order to meet the data synchronization and networking between your multiple servers in the future .
give an example ：A The server is a picture ,B The server is a website 1,C The server is a website 2, Website 1 And websites 2 Call the A Picture of the server , Obviously, it would be more convenient for them to be in the same computer room .
problem 2、 I'm a company in Guangzhou , south China 1 Is it right for me to compare the price ？
In fact, where do you choose your region , It has to do with where your clients visit you . If the client is in South China , South China is a little more suitable for you . If your clients are in the country , So the computer rooms all over the country are similar .
problem 3、 My clients are overseas , I'm at home , Which region to choose ？
It's still a principle “ Customers choose where they are ”, Customers in the United States choose the United States …
Every year, every month ： Supply system , The cost of bandwidth is relatively high .
Pay by traffic ： Website visits per day are less than 100 individual IP Of , Pay as you go saves money , And the bandwidth peak is 1M still 10M The charges are the same , This way is more humanized , But you have to pay attention to network traffic not to be given by external factors “ Stolen it ”.
Generally choose classic network , VPC is used by advanced users , Don't explain .
To configure ：CUP With memory
The following configuration combinations are recommended , Can meet the needs of most users .
- Entry type ： 1 vCPU 1 GB 1 MB, It is suitable for the initial stage of personal website with less visits ;
- Advanced ： 1 vCPU 2 GB 1 MB, Suitable for websites with moderate traffic 、 Simple development environment 、 Code repository, etc ;
- Universal ： 2 vCPU 4 GB 1 MB, To meet the 90% Cloud computing users , It's applicable to business activities 、 Parallel computing applications 、 General data processing ;
- ideal type ： 4 vCPU 8 GB 1 MB, It is used for services that require high computing performance , Such as enterprise operation activities 、 Batch processing 、 Distributed analysis 、 application APP etc. .
These recommended configurations are just a reference for you to start using cloud servers . Cloud server vendors generally provide flexibility 、 The configuration modification mode can be edited . If in use , Found configuration too high or too low , You can modify the configuration at any time , Conduct Lifting fitting .
For small users , Concurrent access is very small , Therefore, the priority of configuration spending should be ： bandwidth > Memory >CPU .
In fact, cloud computing users don't have to worry about how to choose the configuration in the beginning . Cloud computing is elastic computing , It can be adjusted at any time , It can be bigger or smaller , Isn't it more accurate to adjust while using ？
- Public image ： The official image provided by alicloud , It's basically a pure OS image .
- Mirror market ： from Websoft9 This kind of partner , stay “ Public image ” Based on the operating system of , Filled with middleware 、 Application software or database, etc , And then the packaged image .
Public images focus on operating system options , The focus of the mirror market is to quickly meet your business applications .
- Custom mirror ： Self produced mirror image .
- Sharing the mirror ： The mirror image that others share with you .
Security group is similar to firewall function , Used to set up network access control . Security group is a more advanced function , Careless choice , It will let ordinary users “ Crazy ”.
for example ：Linux Let go of the security team 22 port , This option allows the user to use ssh Remote control server .
for example ： The default security group releases all ports , This is more free . It is suggested that small white users choose “ Open all ports ” term , After the improvement of technical ability , Then modify the security group rules , Turn off some ports you don't use , Enhance safety .
This paper is written by Websoft9 Original release , Reprint please indicate the source .