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Help Center/ Object Storage Service/ FAQs/ Billing/ Why Is There a Large Amount of Outbound Internet Traffic in My Bill?

Why Is There a Large Amount of Outbound Internet Traffic in My Bill?

Updated on 2024-10-28 GMT+08:00

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The outbound Internet traffic of OBS consists of:

Outbound Internet traffic for Standard storage: This type of traffic is generated when Standard objects are downloaded and listed over the Internet.
Outbound Internet traffic for Infrequent Access storage: This type of traffic is generated when the restored Infrequent Access objects are downloaded over the Internet.
Outbound Internet traffic for Archive storage: This type of traffic is generated when the restored Archive objects are downloaded over the Internet.
Outbound Internet traffic for Deep Archive storage: This type of traffic is generated when the restored Deep Archive objects are downloaded over the Internet.

To reduce the outbound Internet traffic, you can do as follows:

Disable public read (if enabled) for the bucket.
If public read is enabled for a bucket, anyone can access the bucket and download any object from it. This will generate a large amount of outbound Internet traffic.

You are advised to make the entire bucket private. If needed, you can configure public read for a single directory or object and then share the object's URL with others for access.
Enable logging and configure a bucket policy.
After enabling logging for your bucket, you can analyze the logged IP addresses that sent requests to your bucket after a period of time. If the IP addresses are fixed and do not need to access the objects in your bucket, you can configure a bucket policy to deny access to your bucket from those IP addresses.
Configure URL validation using a whitelist or blacklist.
Check the logs generated at a point in time when there is a large number of requests in the bill. Then, search for the Referer field of the request source and configure URL validation.

Parent topic: Billing

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