Download all RDS CA
wget -c https://s3.amazonaws.com/rds-downloads/rds-ca-2019-root.pem
wget -c https://s3.amazonaws.com/rds-downloads/rds-ca-2015-root.pem
wget -c https://s3.amazonaws.com/rds-downloads/rds-combined-ca-bundle.pem
Get fingerprint for all RDS CA
$ for ca in `ls *.pem`; do echo $ca; openssl x509 -fingerprint -in $ca -noout; done
rds-ca-2015-root.pem
SHA1 Fingerprint=E8:11:88:56:E7:A7:CE:3E:5E:DC:9A:31:25:1B:93:AC:DC:43:CE:B0
rds-ca-2019-root.pem
SHA1 Fingerprint=D4:0D:DB:29:E3:75:0D:FF:A6:71:C3:14:0B:BF:5F:47:8D:1C:80:96
rds-combined-ca-bundle.pem
SHA1 Fingerprint=E8:11:88:56:E7:A7:CE:3E:5E:DC:9A:31:25:1B:93:AC:DC:43:CE:B0