Dear Alibaba Cloud Customer,
Starting on March 21, 2018 00:00:00 +0800, Alibaba Cloud OSS will make the following updates to the IP address range for endpoints in the region Hong Kong. The target time to complete the update is April 12, 2018 00:00:00 +0800.
1. Hong Kong region internet endpoint
The IP address range assisnged to oss-cn-hongkong.aliyuncs.com and *.oss-cn-hongkong.aliyuncs.com will change to 188.8.131.52/16.
2. Hong Kong region intranet endpoint
The IP address range assigned to oss-cn-hongkong-internal.aliyuncs.com and *.oss-cn-hongkong-internal.aliyuncs.com will change to 100.118.0.0/16.
These changes require no action for customers who directly access the internet and intranet endpoints. However, if your solution involves firewalls, network access controls, network monitoring, or other needs for the detailed IP address range, please verify the following:
1. The new IP address range is allowed by the security settings on your servers.
2. To ensure transparent updates in the future, OSS requests should use the internet and intranet endpoints instead of explicitly specified IP address range.