AWS Ping Feature enabled

AWS Free Usage Considerations:

The one-year free tier offered by AWS (Amazon Web Service) is tempting, and it's believed to be a lot of people, but using
Some things must be noted in the process, in order to avoid the ignorance of the charges will be deducted.

1.EC2: When you create an instance, you choose an operating system labeled free tier eligible, which is provided for no additional charge.
However, please note: Do not use Rhel (Red Hat Enterprise Linux), this system consumes large EBS space and extremely cost Io,
2 million of the free IO per month is consumed in two days. Also, the free quota is only enough to create a EC2 instance.

2.S3: Free storage per month is 5G, be careful not to exceed this limit, and get,post and other operations may exceed the free limit,
But it's okay, it's cheap anyway.

3. Traffic: Traffic to AWS is completely free, but the monthly free outgoing traffic is only 15G, and the excess is charged. And this
15G is shared for all AWS Services. Host a small website, set up a VPN, and store a few g of files to s3,15g
Should be enough for one months.

4. Monitoring: Basic monitoring is free, and high-level charges will be charged. Free monitoring Although not detailed enough, but enough to let us know the service
In the recent period of time, there is no need to use a high level of monitoring services.

5.RDS: The relational database does not seem to contain Oracle for free, and the monthly IO also has an upper limit and must be a single region (multi-region to
), IOPS is best not to be called. When you create an RDS instance, you have to compare the amount of an item to the free tier, and the items you don't understand
Don't check it out. With EC2, the free quota is only enough to create an RDS instance.

6.Elastic IP: When the Elastic IP is not bundled to the EC2 instance, be sure to release it, or it will charge by the hour. And the first 100 times a month.
Bundling elastic IP to EC2 instances is free and charges are exceeded.

Storage within 7.ebs:30g is free, free snapshot of 2 million free io,1g per month.

8. To use a credit card that has never been used on AWS, you will not be eligible for free tier and all services will be charged on demand.

9. This service is valid for one year only, remember to export data and stop all services when it expires.

Special warning :

AWS offers 750 hours of free hours per month , only 1 instances (instance) VPS running for 1 months throughout the day
If you build multiple instances (instance), the number of hours is added up.
For example, you set up 3 VPS for Singapore, the west coast of the United States, Tokyo, then they run the hours of the day equals 72 hours (24x3)
If you have more than 1 VPS, Please just keep a VPS running at the same time , put the unused ones off (stop) or not when all VPS stops
More than 750 hours of usage in one months will be charged !!!

Query Usage/Usage Click your name in the top right corner and then click Report--EC2 Instance Usage report (EC2 Instance usage)

on the left of the "Bill (Bills)" Query you have not been charged, if there is a fee to open the relevant options will see which item is charged


to turn on the Ping feature of AWS:

Login to AWS Managementsecurity Group on the left
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Add rule-> Select all icmp-> select Anywhere-> Save Save


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AWS Ping Feature enabled