로컬 포트 포워딩
# [1] Bastion 필요 없음 (Public EC2)
Host pub-db-lfwd
HostName 3.4.5.6
User ubuntu # 주의
IdentityFile key.pem
LocalForward 16432 3.4.5.6:5432
# Postgres: localhost:16432 -> 3.4.5.6:5432
##############################################################
# Bastion
Host db-bas
HostName 1.2.3.4
Port 22
User ec2-user
IdentityFile key.pem
# [2] 로컬 포트 포워딩 : -> Bastion -> Target
Host ats-rds-lfwd
HostName 1.2.3.4
Port 22
User ec2-user
IdentityFile key.pem
LocalForward 6432 __rds__.rds.amazonaws.com:5432
# Postgres: localhost:6432 -> RDS:5432