Change the Port Number

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Last updated: 2026-05-19 10:54:30

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TencentDB for MySQL supports modifying the port number for the private network address. This document describes the steps to modify it via the console.
Note:
TencentDB for MySQL only supports modifying the port number for the private network address. The port number for the public network address is not supported for modification.
Instances of the cloud disk edition have private network addresses enabled by default for read-only nodes, and support modifications to the network and port of read-write nodes and read-only nodes. For operations, see Read-Write Address Management and Read-Only Address Management.
Prerequisites
You have created a MySQL instance.
Note:
If you need to modify the port number for the private network address of a read-only instance, you must first ensure that the private network address is enabled for the read-only instance.
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Modify Primary Instance/Read-Only Instance Private Network Address Port Number
1. Log in to the TencentDB for MySQL console. In the instance list, click the Instance ID or Manage in the Operation column to go to the instance details page.
2. Click Edit next to the private network address or independent private network.
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3. In the pop-up window, modify the private network port number and click OK.
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Modify the Private Network Address Port Number for the Read-Only Group
1. Log in to the TencentDB for MySQL console.
2. In the instance list, locate the primary instance whose read-only group's private network address needs to be modified. Click its Instance ID or Manage in the Operation column to go to the instance details page.
3. Go to the read-only instance page and click the edit icon next to the private network address of the RO group.
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4. In the pop-up window, modify the private network port number and click OK.