Help Center/ Server Migration Service/ FAQs/ Migration Network/ What Are the Network Requirements for Existing Target Servers?
Updated on 2025-01-24 GMT+08:00

What Are the Network Requirements for Existing Target Servers?

SMS enables you to migrate to existing servers on the cloud. The existing servers must:

  • Meet the specifications requirements described in How Do I Select a Target Server?
  • Be accessible from the paired source servers through EIPs, VPN, or private lines.
  • Enable the migration ports in their security groups.
    • Windows: TCP ports 8899, 8900, and 22
    • Linux: port 22 for file-level migration and ports 8900 and 22 for block-level migration

    For details about how to configure security group rules, see How Do I Configure Security Group Rules for Target Servers?

If you indeed use the ECS as the target server, do not perform any operations on the ECS during the migration, such as stopping or restarting the ECS, attaching or detaching a disk, or changing the password, or the migration will fail.