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[Newbies can do it] AWS Amazon Cloud EC2: Change IP and reduce hard disk, dual-boot Linux and Windows without charging
Hello, everyone. This time we are going to talk about Amazon Cloud Services. How to avoid pitfalls during the first year of free trial. Of course, this is not a complete avoidance of pitfalls. To be honest, it is quite difficult to avoid being charged a penny.
Among the free cloud services of big brands, Oracle's registration is more mysterious.AmazonThe deduction is more mysterious. But in any case, if you want to have a free cloud server (vps) first, it will be much easier to register with Amazon than Oracle.
1. What are the commonly used free services of Amazon Cloud?
For ordinary (薅羊毛) users like us, the services available on Amazon Cloud include:
EC2 cloud server (vpc): free period 12 months
Lightsail (vps): 3 months free
Cloudfront (cdn): long-term free, 1T traffic
Among these products, easily perceived payment factors include: instance usage time, hard disk space, IPv4 usage time, and traffic;
The charging factors that are easily overlooked include: the definition of free time (calendar month), the definition of traffic (downstream), CFT backhaul EC2 server traffic (upstream), and http/https requests and function calls.
For those who are new to Amazon Cloud, you should first understand a few concepts:
Free time: refers to the natural month. For example, when we say EC2 has a 12-month free period, it means the 12 months from the date of registration, not the date of instance creation. If the registration time is June 29, then the free 12 months is actually from June 29 to May 31 of the following year. Therefore, it is more cost-effective to register with Amazon at the beginning of the month.
flow: Includes inbound traffic (in) and outbound traffic (out). For example, EC2's 100G free traffic refers to outbound traffic, while LightSail's 3T traffic includes inbound and outbound traffic.
CFT backhaul traffic: All data transferred out to Origin in the bill refers to the data transferred from the edge server to the EC2 server. This is equivalent to when you upload a file, the file is first uploaded to the edge server which is closer and faster, and then the edge server transfers the file back to EC2. If you need to upload large files, be cautious when using CFT to accelerate EC2.
My personal experience is that if you choose Asian servers like Japan and Singapore, the speed is not slow, and there is no need to risk being charged for this, unless you want to do something weird.
As forhttp/httpsRequests and function calls, CFT is 10 million and 2 million respectively, but if your site is attacked, it is far from enough. It can make your account soar by hundreds of dollars in minutes.
Therefore, for those who don’t need to use CFT, don’t use it.
Next, I will focus on the most commonly used EC2. I will assume that you already understand the basic operations and will not go into details in this regard.
2. EC2 (see video for details)
1. Create EC2: All defaults are possible
2. Dual instances of Windows and Linux
3. Precautions for using elastic IP
4. HK: CPU overclocking fee deduction reference
5. Core principle: Open only one instance, not multiple
3. Credit card and bill reminder settings
1. Credit card: set a limit or use a virtual credit card
2. Account Settings
(1) Set spending limit reminders
(2) Check the usage of free quota in the "Free Tier" section of your bill
Finally, let’s make a summary:
If you want to avoid being overcharged when using Amazon Cloud, you can do this:
- A bound credit card, preferably a virtual credit card, and then set a spending limit
- Free time refers to the natural month
- In regions like Hong Kong, the free instance type is t3.micro, and the unlimited mode needs to be turned off.
- CFT data transmission to the server is charged separately. Do not use it unless you have an urgent need.
- There is no charge for binding an elastic IP to an instance, but it must be unbound after it is vacant.
- It is recommended to open only one EC2 instance
Well, if you find it useful, you can follow, like, favorite, forward and comment, which is very important to me. byebye~
