Tango is a dependency-free command-line tool for analyzing access logs. Currently, work on this project is in progress. However, a few pre-releases are ready to use!

Table of Contents

• Installation
• Usage
• Filters
• Report Commands
• Misc Commands
• Config File

Installation

macOS

You can install Tango on macOS via Homebrew:

brew tap roma-glushko/tango
brew install roma-glushko/tango/tango

To upgrade, run:

brew upgrade tango

Linux

Tango is available on various Linux distributions via Snapcraft. Here are some installation links:

• Ubuntu
• Debian
• CentOS
• openSUSE
• Linux Mint
• Fedora
• Kubuntu
• elementary OS
• Arch Linux
• KDE Neon
• Manjaro

To upgrade, run:

snap refresh tango

Windows

You can install Tango on Windows via Scoop:

scoop bucket add tango https://github.com/roma-glushko/scoop-tango.git
scoop install tango

To upgrade, run:

scoop update tango

Usage

List the available commands:

tango help

Check the version:

tango -v

Filters

Using filters is like sifting through a pile of LEGO bricks to find just the right piece. Here’s a brief overview:

• IP address filtering – Narrow down logs based on specific IP addresses.
• URI filtering – Dig into logs to isolate requests based on specific URIs.
• Time Frame filtering – Access logs for a given time period.
• User Agent filtering – Find logs based on different browsers/devices.
• Asset filtering – Explore logs for specific types of assets or files.

Report Commands

Reporting is similar to creating a detailed map from your LEGO exhibition. Using report commands, you can generate various reports:

• Custom Reports – Generate tailored reports.
• Geo Reports – Identify geographical data behind the requests.
• Browser Reports – Analyze usage by different browsers.
• Request Reports – Explore the requests over the logs.

Misc Commands

The Geo Lib command helps in generating geo reports using MaxMind’s GeoLite2-City database.

tango geo-lib

Config File

Create a .tango.yaml file in your working directory to fine-tune your analysis preferences:

asset-filter:
  - pubstatic
  - pubmedia
  - media
  - static
ip-filter:
  - 127.0.0.1
system-ips:
  # Fastly IPs
  - 23.235.32.020
  - 43.249.72.022
  - 103.244.50.024
  - 103.245.222.023
  - 103.245.224.024

Troubleshooting

If you encounter any issues during installation or usage, consider the following tips:

• Ensure that you are using the correct command syntax as specified.
• Check your internet connection, especially if you’re installing online.
• Try upgrading your package manager if errors occur during installation.
• Review error messages carefully, as they often suggest the corrective actions needed.

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