SecureAnyCloud
Deployment guide

Oracle Database 11g Express

Overview

Oracle Database 11g Express Edition (XE) is a free, lightweight edition of Oracle Database, suited to development, testing and small production workloads. It provides the same core SQL and PL/SQL engine as the full Oracle Database, with resource limits on CPU, memory and storage.

This guide covers deploying and configuring Oracle Database 11g XE on Linux using the SecureAnyCloud AMI from the AWS Marketplace. The database is installed, the listener is configured, and the service starts automatically on boot.

What you get:

  • Oracle Database 11g Express Edition 11.2.0.2 (64-bit) installed at /u01
  • A preconfigured XE database service that starts automatically on boot
  • Oracle Listener preconfigured on port 1521
  • A dedicated oracle OS user for database access
  • Randomly generated SYSTEM user credentials
  • An OS package update script that keeps the system current
  • AWS CLI v2 for AWS service integration
  • Systems Manager Agent (SSM) for remote management
  • CloudWatch Agent for monitoring
  • Latest security patches applied at build time
  • 24/7 SecureAnyCloud support with a guaranteed 24 hour response SLA

Prerequisites

Before you launch this AMI, make sure you have:

  • An active AWS account
  • An active subscription to the Oracle Database 11g Express listing on AWS Marketplace
  • An EC2 key pair for SSH access
  • Familiarity with EC2 instance management and SSH

Recommended instance type: t3.medium (2 vCPU, 4 GB RAM) or larger. The minimum requirements are 1 vCPU, 1 GB RAM and 20 GB of disk space.

1

Launch the AMI

  • Open the AWS Marketplace and search for "Oracle Database 11g Express SecureAnyCloud".
  • Click Continue to Subscribe, accept the terms, then click Continue to Configuration.
  • Select your preferred Region and Software Version.
  • Click Continue to Launch.
  • Choose Launch through EC2 for full control over instance configuration.
  • Select your instance type (t3.medium is recommended).
  • Configure storage: 20 GB gp3 minimum for the root volume, plus the dedicated /u01 Oracle volume.
  • Configure your Security Group with the inbound rules below.

Inbound rules (port, protocol, source, purpose):

22 TCP Your IP SSH access

1521 TCP Your IP Oracle Database Listener port

Important: Restrict port 1521 to trusted application servers or your own IP. Do not open the Oracle Listener port to the public internet.

  • Select your EC2 key pair and launch the instance.
2

Connect over SSH

When your instance is running and has passed both status checks (2/2), connect over SSH:

ssh -i your-key.pem ec2-user@<public-ip-address>

Switch to the root user:

sudo su -

Important: Wait for the instance to reach 2/2 successful status checks before you connect. Early connection attempts may fail with permission denied errors while the instance is still initialising.

3

Verify the Oracle XE service

The Oracle XE database service starts automatically on boot. As the root user, check its status:

service oracle-xe status

The output looks like this:

LSNRCTL for Linux: Version 11.2.0.2.0 - Production Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production Trace Level off Security ON: Local OS Authentication SNMP OFF Default Service XE Listener Parameter File /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE))) (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521))) The command completed successfully
4

Connect with SQL*Plus

Switch to the oracle user and connect to the XE database with SQL*Plus:

sudo su - oracle sqlplus / as sysdba

The output looks like this:

SQL*Plus: Release 11.2.0.2.0 Production Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production SQL>

Type EXIT to leave the SQL*Plus session.

5

Connect remotely with SQL Developer

To connect from an external tool such as SQL Developer, use these connection settings:

Database Type Oracle

Authentication Type Default

Username SYSTEM

Password See credentials file below

Connection Type Basic

Hostname Your instance public IP

Port 1521

SID XE

Service Name XE

Note: The SYSTEM user password is in the randomly generated credentials file at /stage/scripts/oracle-database-xe-config.log.

Server components

Components, with version and install path:

Oracle Database 11g XE 11.2.0.2 /u01

Note: The automatic OS package update script can update component versions on first boot.

Filesystem layout

Mount points, with size and description:

/ 38 GB Root filesystem

/boot 2.0 GB Operating system kernel files

/u01 20 GB Oracle software installation directory

Key Oracle directories, with purpose:

/u01/app/oracle Oracle base directory

/u01/app/oracle/product/11.2.0/xe Oracle XE software home

/u01/app/oracle/product/11.2.0/xe/network/admin Listener and TNS configuration files

/u01/app/oracle/diag Oracle diagnostic and alert log files

Manage the Oracle XE service

The Oracle XE database runs as a system service and starts automatically on boot.

Check the service status:

sudo su - service oracle-xe status

Stop the database:

sudo su - service oracle-xe stop

Start the database:

sudo su - service oracle-xe start

Scripts and log files

Scripts and logs, with path and description:

initial_boot_update.sh /stage/scripts Updates the OS with the latest packages on first boot

initial_boot_update.log /stage/scripts Output log for the boot update script

oracle-database-xe-config.log /stage/scripts Oracle Database XE SYSTEM user credentials

On startup

An OS package update script runs on first boot to bring the image fully up to date. To disable it, remove the script and its crontab entry:

rm -f /stage/scripts/initial_boot_update.sh crontab -e
# Delete the following line, save and exit: @reboot /stage/scripts/initial_boot_update.sh

Troubleshooting

Cannot connect over SSH

  • Verify that the instance has reached 2/2 status checks in the EC2 console.
  • Confirm that your security group allows inbound TCP port 22 from your IP.
  • Make sure you are using the correct key pair and connecting as ec2-user.

Oracle XE service fails to start

  • Check the service status: service oracle-xe status
  • Try starting the service: service oracle-xe start
  • Review the listener log at /u01/app/oracle/diag/tnslsnr/<hostname>/listener/alert/log.xml.
  • Verify that no other process is using port 1521: netstat -tlnp | grep 1521

Database fails to start

  • Switch to the oracle user: sudo su - oracle
  • Connect to SQL*Plus: sqlplus / as sysdba
  • Check the instance status: SELECT STATUS FROM V$INSTANCE;
  • Try starting it manually: STARTUP;
  • Check the available disk space: df -h /u01

Cannot connect remotely on port 1521

  • Verify that the Oracle XE service is running: service oracle-xe status
  • Confirm that your security group allows inbound TCP port 1521 from your IP.
  • Test connectivity: telnet <instance-ip> 1521
  • Check the listener.ora configuration at /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora.

Security notes

  • Restrict port access. Allow port 1521 only from trusted application servers or specific IP addresses.
  • Change default passwords. Update the SYSTEM and SYS user passwords immediately after your first login.
  • Use strong passwords. Make sure all database user passwords meet complexity requirements.
  • Enable auditing. Configure Oracle Database auditing to track access and changes.
  • Encrypt connections. Configure Oracle Net Services to use SSL/TLS encryption for client connections.
  • Limit OS access. Restrict SSH access to authorised administrators only.
  • Review user privileges. Remove unnecessary grants and follow the principle of least privilege.
  • Keep the system updated. Apply OS security patches regularly.

Support

If you have any issue with this product, contact SecureAnyCloud support:

  • Email: sales@secureanycloud.com
  • Website: secureanycloud.com
  • Support hours: 24/7, with a guaranteed 24 hour response SLA

Deploy on AWS

Launch Oracle Database 11g Express with 24/7 support from SecureAnyCloud.

View on Marketplace

Need Help?

Our support team is available 24/7.

sales@secureanycloud.com

Deploy on AWS

Launch Oracle Database 11g Express with 24/7 support from SecureAnyCloud.

View this image

Need Help?

Our support team is available 24/7.

sales@secureanycloud.com