orafail 0.1.1

Oracle login failure monitor dashboard

Orafail

A live, terminal-based dashboard that polls multiple Oracle databases concurrently for failed logon attempts. Designed for DBAs and security administrators, it helps identify potential brute-force attacks, misconfigured connection scripts, and unauthorized access attempts in real-time.

Features

• Concurrent Polling: Uses a thread pool (ThreadPoolExecutor) to monitor multiple Oracle databases concurrently without blocking the UI.
• Terminal UI Dashboard: A beautiful, responsive console interface built with Rich featuring:
  • Live Aggregates: Displays logon failure counts grouped by sliding time-windows: 1 minute, 10 minutes, and 1 hour.
  • Trend Indicators: Up, down, and neutral arrows comparison to the previous polling cycle.
  • Connection Latency: Tracks response time (in milliseconds) for each target database.
  • Highlight Aging: Color-codes new failure events in bold red and fades them through bold yellow over customizable cycles before returning to normal text.
  • Integrated Log Viewer: Real-time log capture and display directly on the dashboard.
• Headless Daemon Mode: Run the monitor as a background service (--headless) that streams structured log entries to stdout and log files.
• Connection Caching & Resiliency: Caches connections, performs active ping health-checks, handles automatic reconnects, and enforces TCP connect and query execution timeouts.
• Auditing Source: Queries Oracle's unified_audit_trail (where action_name = 'LOGON' and return_code != 0).

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Architecture

The following diagram illustrates the flow of data from target databases to the monitor:

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Installation

This project is built using Python 3.13+ and managed via the uv package manager.

1. Clone the repository:

   git clone https://github.com/balddba/orafail.git
   cd orafail
   

2. Sync dependencies: This automatically configures a virtual environment and installs required packages (oracledb, pydantic, pyyaml, rich, loguru):

   uv sync
   

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Configuration

Copy the example configuration to create your local config file:

cp config.example.yaml config.yaml

Update config.yaml with your connection parameters. Do not commit config.yaml to source control, as it contains sensitive database credentials.

Configuration Options

Option	Type	Default	Description
databases	list	Required	List of databases to monitor (each requiring name, dsn, user, and password).
max_workers	int	5	Maximum number of concurrent database query worker threads.
refresh_seconds	int	15	Polling frequency / UI refresh interval in seconds.
highlight_ttl	int	3	Number of cycles a new logon failure row remains highlighted.
log_file	str	null	Path to a log file for logging output.
log_level	str	"INFO"	Logging severity threshold (DEBUG, INFO, WARNING, ERROR).
tcp_connect_timeout	int	10	Timeout in seconds when establishing database TCP connections.
query_timeout	int	10	Timeout in seconds for executing the database audit query.

Sample config.yaml

databases:
  - name: homelab
    dsn: oracle26ai.aaronslab.net:1521/homelab
    user: system
    password: "YourSecurePassword"

max_workers: 5
refresh_seconds: 15
highlight_ttl: 3
log_file: "monitor.log"
log_level: "INFO"

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Usage

You can use the bundled helper script orafail to run the application. The launcher will automatically prefer your uv environment, falling back to a virtual environment or system Python if necessary.

Command Line Interface

./orafail --help

usage: orafail [-h] [--config CONFIG] [--headless]

Oracle Login Failure Monitor

options:
  -h, --help       show this help message and exit
  --config CONFIG  Path to the YAML configuration file (default: config.yaml)
  --headless       Run in headless daemon mode (no terminal UI)

Running the Live TUI Dashboard

./orafail

Running as a Headless Daemon

To run the monitor in the background or stream events to standard logging (e.g., for ingestion by SIEM tools like Splunk or ELK):

./orafail --headless

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Example Outputs

Headless Mode Logs

When running in --headless mode, the monitor logs connection statuses and logon failure events to stdout/log files:

2026-07-08 15:52:25.704 | INFO     | orafail.main:run:573 - Oracle Login Failure Monitor starting...
2026-07-08 15:52:25.911 | INFO     | orafail.main:run:589 - Database: homelab | Status: ONLINE | Latency: 204ms | Failures (1m/10m/1h): 0/0/1
2026-07-08 15:52:25.911 | WARNING  | orafail.main:run:599 - NEW FAILURE on homelab | User: STEVE | IP: oracle26ai.aaronslab.net | Last Failed: 2026-07-08 15:38:15.064532
2026-07-08 15:52:25.911 | WARNING  | orafail.main:run:599 - NEW FAILURE on homelab | User: SYSTEM | IP: Mac.aaronslab.net | Last Failed: 2026-07-08 13:58:53.295442
2026-07-08 15:52:25.911 | WARNING  | orafail.main:run:599 - NEW FAILURE on homelab | User: AMYERS | IP: Mac.aaronslab.net | Last Failed: 2026-07-08 13:54:11.958124
2026-07-08 15:52:25.911 | WARNING  | orafail.main:run:599 - NEW FAILURE on homelab | User: SYSTEM | IP: oracle-password-rotation-ui | Last Failed: 2026-06-30 14:36:37.579003
2026-07-08 15:52:25.911 | WARNING  | orafail.main:run:599 - NEW FAILURE on homelab | User: C##DBA_PW_ROTATION | IP: dcc61bbb7878 | Last Failed: 2026-06-19 10:35:23.796769

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Development & Testing

Running Tests

Execute the unit tests using pytest inside the workspace environment:

uv run --with pytest pytest

Formatting & Linting

We enforce codebase standards using Ruff. Run the formatter and linter before submitting PRs:

# Format codebase
uv run --with ruff ruff format src/ tests/

# Check lints
uv run --with ruff ruff check src/ tests/

Security Best Practices

1. Least-Privilege Database Account: Create a dedicated read-only database user for monitoring. The user only needs access to SYS.UNIFIED_AUDIT_TRAIL or equivalent audit views.
2. Credential Management: Avoid embedding passwords in scripts. Keep config.yaml securely on the system and restrict read permissions.