Durante a migração da base de dados, a base de dados de destino tem de se ligar à base de dados de origem. O serviço de migração de base de dados oferece várias formas de configurar esta conetividade. O método de conetividade que escolher depende do tipo de base de dados de origem e se esta reside no local, na Google Cloudou noutro fornecedor de nuvem.
Pode configurar os seguintes métodos de conetividade:
Túnel SSH inverso com uma VM alojada na nuvem: escolha este método se quiser usar uma conetividade segura e quando não tiver uma rede de nuvem virtual privada (VPC) a partir da qual possa alcançar a base de dados de origem. Google Cloud
Conetividade privada: escolha este método se quiser que a base de dados de destino se ligue ao IP privado da sua origem. Existem dois tipos
de conetividade privada disponíveis:
Interfaces do Private Service Connect:
este método de conetividade permite que a base de dados de destino inicie
ligações ao IP privado da base de dados de origem
sem consumir a quota de interligação. Em alternativa, as interfaces do Private Service Connect
usam associações de rede que cria na sua VPC.
Intercâmbio da VPC: este método requer que tenha uma rede VPC em
Google Cloud a partir da qual pode alcançar a base de dados de origem.
Use o peering de VPC se tiver uma ligação de
VPN
ou Cloud Interconnect configurada no Google Cloud.
[[["Fácil de entender","easyToUnderstand","thumb-up"],["Meu problema foi resolvido","solvedMyProblem","thumb-up"],["Outro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Informações incorretas ou exemplo de código","incorrectInformationOrSampleCode","thumb-down"],["Não contém as informações/amostras de que eu preciso","missingTheInformationSamplesINeed","thumb-down"],["Problema na tradução","translationIssue","thumb-down"],["Outro","otherDown","thumb-down"]],["Última atualização 2025-08-21 UTC."],[[["\u003cp\u003eDatabase Migration Service requires the destination Cloud SQL database to connect to the source database.\u003c/p\u003e\n"],["\u003cp\u003eThe chosen connectivity method depends on the source database's type and location (on-premises, Google Cloud, or another cloud provider).\u003c/p\u003e\n"],["\u003cp\u003eConnectivity options include IP allowlists for public access, reverse SSH tunnels for secure access without a VPC, and VPC peering for private access with a VPC.\u003c/p\u003e\n"],["\u003cp\u003eVPC peering is recommended when a VPN or Cloud Interconnect connection is already established in Google Cloud.\u003c/p\u003e\n"]]],[],null,["# Configure connectivity\n\n\u003cbr /\u003e\n\nMySQL \\| [PostgreSQL](/database-migration/docs/postgres/configure-connectivity \"View this page for the PostgreSQL version of Database Migration Service.\") \\| [PostgreSQL to AlloyDB](/database-migration/docs/postgresql-to-alloydb/configure-connectivity \"View this page for the PostgreSQL to AlloyDB version of Database Migration Service.\")\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nDuring database migration, the destination database needs to connect\nto the source database. Database Migration Service provides several ways to configure\nthis connectivity. The connectivity method you choose depends on the type of\nsource database, and whether it resides on-premises, in Google Cloud, or in another\ncloud provider.\n\nYou can configure the following connectivity methods:\n\n- [IP allowlists](/database-migration/docs/mysql/configure-connectivity-ip-allowlists): Choose this method if you want to use public connectivity.\n- [Reverse SSH tunnel using a cloud-hosted VM](/database-migration/docs/mysql/configure-connectivity-reverse-ssh-tunnel): Choose this method if you want to use secure connectivity, and when you don't have a virtual private cloud (VPC) network in Google Cloud from which you can reach the source database.\n- Private connectivity: Choose this method if you want the destination database to connect to the private IP of your source. There are two types of private connectivity available:\n - [Private Service Connect interfaces](/database-migration/docs/mysql/configure-connectivity-vpc-peering#psc-interfaces): This connectivity method lets your destination database initiate connections to the private IP of your source database without consuming peering quota. Instead, Private Service Connect interfaces use network attachments you create in your VPC.\n - [VPC peering](/database-migration/docs/mysql/configure-connectivity-vpc-peering#vpc-peering): This method requires that you have a VPC network in Google Cloud from which you can reach the source database. Use VPC peering if you have a [VPN](/database-migration/docs/mysql/configure-connectivity-vpns) or Cloud Interconnect connection set up in Google Cloud.\n\nWhat's next\n-----------\n\n- Learn more about [private services access](/vpc/docs/private-services-access).\n- Learn more about [Private Service Connect interfaces](/vpc/docs/about-private-service-connect-interfaces).\n- Learn more about [using VPC peering](/vpc/docs/using-vpc-peering)."]]
