# Open source
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**Topics**
+ [Create application users and roles in Aurora PostgreSQL-Compatible](create-application-users-and-roles-in-aurora-postgresql-compatible.md)
+ [Migrate Amazon RDS for Oracle to Amazon RDS for PostgreSQL with AWS SCT and AWS DMS using AWS CLI and CloudFormation](migrate-amazon-rds-for-oracle-to-amazon-rds-for-postgresql-with-aws-sct-and-aws-dms-using-aws-cli-and-aws-cloudformation.md)
+ [Migrate an on-premises MariaDB database to Amazon RDS for MariaDB using native tools](migrate-an-on-premises-mariadb-database-to-amazon-rds-for-mariadb-using-native-tools.md)
+ [Migrate an on-premises MySQL database to Amazon RDS for MySQL](migrate-an-on-premises-mysql-database-to-amazon-rds-for-mysql.md)
+ [Migrate an on-premises MySQL database to Aurora MySQL](migrate-an-on-premises-mysql-database-to-aurora-mysql.md)
+ [Migrate an on-premises PostgreSQL database to Aurora PostgreSQL](migrate-an-on-premises-postgresql-database-to-aurora-postgresql.md)
+ [Migrate a Couchbase Server database to Amazon EC2](migrate-couchbase-server-ec2.md)
+ [Migrate from IBM WebSphere Application Server to Apache Tomcat on Amazon EC2 with Auto Scaling](migrate-from-ibm-websphere-application-server-to-apache-tomcat-on-amazon-ec2-with-auto-scaling.md)
+ [Migrate from PostgreSQL on Amazon EC2 to Amazon RDS for PostgreSQL using pglogical](migrate-from-postgresql-on-amazon-ec2-to-amazon-rds-for-postgresql-using-pglogical.md)
+ [Migrate on-premises Java applications to AWS using AWS App2Container](migrate-on-premises-java-applications-to-aws-using-aws-app2container.md)
+ [Migrate on-premises MySQL databases to Aurora MySQL using Percona XtraBackup, Amazon EFS, and Amazon S3](migrate-on-premises-mysql-databases-to-aurora-mysql-using-percona-xtrabackup-amazon-efs-and-amazon-s3.md)
+ [Migrate Oracle external tables to Amazon Aurora PostgreSQL-Compatible](migrate-oracle-external-tables-to-amazon-aurora-postgresql-compatible.md)
+ [Restart the AWS Replication Agent automatically without disabling SELinux after rebooting a RHEL source server](restart-the-aws-replication-agent-automatically-without-disabling-selinux-after-rebooting-a-rhel-source-server.md)
+ [Transport PostgreSQL databases between two Amazon RDS DB instances using pg\$1transport](transport-postgresql-databases-between-two-amazon-rds-db-instances-using-pg-transport.md)