Oracle DB21c Client

This is a repackaged open source software product wherein additional charges apply for cloudimg support services.

This is a repackaged software wherein additional charges apply for round-the-clock support with a guaranteed 24-hour response time.

## Oracle Database Client 21c Overview

Oracle Database Client 21c supplies the connectivity stack, SQL*Plus, OCI, and development libraries required to access modern Oracle Database servers. It is ideal for application tiers, DevOps pipelines, and DBA workstations that need secure, high-performance links to Oracle data.

## Why Choose cloudimg Over a DIY Install?

Building an Oracle Client environment from scratch means downloading binaries, resolving dependencies, hardening the OS, configuring monitoring agents, and validating networking - a process that can take two or more hours per instance. With this AMI you launch a fully tested, production-ready environment in minutes:

• Oracle Client 21c binaries pre-installed and validated against Oracle Database 21c and19c servers
• SELinux enforcing mode, latest OS patches, and CIS-informed hardening applied before publish
• AWS CLI v2, Systems Manager Agent, and CloudWatch Agent pre-configured so you inherit observability from first boot
• ENA-enabled networking delivering up to 25 Gbps single-flow bandwidth with low latency

No time wasted on library conflicts, missing RPMs, or manual agent installs.

## Supported Platforms

Choose the OS variant that matches your fleet policy:

• Oracle Linux 8
• CentOS 7
• AlmaLinux 8
• Rocky Linux 9

Each variant ships with identical Oracle Client configuration, so you can standardize connectivity regardless of base OS.

## Security and Network Posture

• OS hardening - SELinux enabled in enforcing mode with latest patches applied
• No inbound listeners - the AMI opens no listening ports by default; it initiates outbound connections to your Oracle Database servers
• Encryption in transit - configure Oracle Net encryption (native or TLS) via sqlnet.ora to secure data between client and server
• Encryption at rest - deploy on EBS volumes with AWS-managed or customer-managed KMS keys for storage encryption
• Credential management - use Oracle Wallet files stored under restricted permissions; no passwords saved in plaintext configuration

## Common Use Cases

• Microservices or monoliths requiring OCI, JDBC, or ODP.NET Core libraries
• CI/CD jobs running Data Pump exports, RMAN backups, or SQL*Plus automation
• Lightweight query tools, monitoring agents, andBI gateways on EC2
• Secure bastion hosts for DBA access to RDS Custom for Oracle or self-managed databases

## Getting Started

1. Subscribe and launch the AMI in your target VPC and private subnet.

2. Ensure your security group allows outbound TCP 1521 (or your configured listener port) to the Oracle Database endpoint.

3. SSH into the instance and configure /opt/oracle/network/admin/tnsnames.ora with your database connection details.

4. Test connectivity with: sqlplus user/password@your_tns_alias

5. Monitor instance health via CloudWatch metrics and Systems Manager inventory.

Typical time from launch to first successful database connection is under five minutes.

## 24/7 Expert Support

Your subscription includes round-the-clock access to cloudimg's Oracle specialists. Whether you need help configuring TNS entries, troubleshooting ORA errors, or optimizing client-server performance, our team responds within the guaranteed SLA window.

Trademarks: This software listing is packaged by cloudimg. The respective trademarks mentioned in the offering are owned by their respective companies and do not imply endorsement.