An IP address whitelist controls which IP addresses can connect to your PolarDB-X 1.0 instance. Configure a whitelist to grant access only to trusted IP addresses.
Prerequisites
Before you begin, ensure that you have:
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A PolarDB-X 1.0 instance
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The IP addresses or CIDR blocks of the clients that need access
Configure the whitelist
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Log on to the PolarDB for Xscale console.
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In the top navigation bar, select the region where your instance is located.
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In the left-side navigation pane, click Instances.
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Find the target instance and click its ID.
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In the left-side navigation pane, choose Configuration and Management > Whitelist Settings.
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Select the whitelist group to update and click Edit. In the dialog box, enter the IP addresses to allow.
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Click OK.
Supported IP formats and limits
| Format | Example |
|---|---|
| Single IP address | 192.168.0.1 |
| CIDR block | 192.168.0.0/24 |
| Wildcard range | 192.168.10.* |
| IP range | 192.168.10.2-192.168.10.30 |
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Each whitelist group supports up to 300 IP addresses or CIDR blocks.
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Separate multiple entries with commas (
,). For example:192.168.0.1,192.168.0.0/24. -
The IP address
0.0.0.0is not supported.
FAQ
Why can IP addresses outside the whitelist still access my instance?
Check whether the whitelist contains *.*.*.* or is left blank. Either condition allows all IP addresses to connect to the instance. Remove the open entry and add only the specific IP addresses you trust.
My IP address changes frequently. How should I configure the whitelist?
Use a CIDR block that covers the expected IP range instead of a single IP address. For example, 203.0.113.0/24 covers 256 addresses.