Relay Monitoring and Deployment Platform

Remedy is a platform which helps in managing relay nodes (primarily reverse proxy nodes) that provide access to blocked content in a cyber-censored environment.

Remedy is designed to facilitate :

• Monitoring of performance & traffic on relay nodes
• Visualize traffic of relays based on the dissemination channel that were used to publicise their existence
• Monitoring of in-country health status for each relay node
• Detecting in a timely manner any blocking event on each node & which blocking technique is used
• Mitigate any blocking event automatically by automating the deployment and configuration of relay nodes.

Remedy is designed in 4 components :

• Performance & traffic monitoring component for relay nodes
• Health monitoring system for nodes for censorship status monitoring
• Automated blockage mitigation & deployment features for existing & new nodes
• Monitoring dashboard for the visualisation and interactions with the three components above

Remedy is powered by the following technologies.

• The performance & health monitoring status data collection is built on Collectd.
• The dashboard frontend is built using Drupal 7, one of the leading Content Management Framework
• Also, the mitigation process logic is implemented using Rules Drupal module, meaning they can be reconfigured without coding
• Relay nodes can be:
  • Nginx reverse proxies
  • OpenVPN/Obfsproxy servers
  • (soon) Web mirrors
  • (soon) Tor bridges
• Relays are deployed on Amazon Web Services cloud infrastructure, which allows a very quick & automated deployment, but will evolve to support more cloud providers (particularly OpenStack)

• PHP/MySQL
• Drupal 7.x
• RRD
• Collectd
• AWS EC2 + AWS SDK for PHP - https://aws.amazon.com/sdkforphp/
• DNSSimple + DNS Simple PHP Lib - https://github.com/fvdm/dnsimple-php

###Drupal Cf docs/INSTALL.md

##Directory structure Apart from docs, the directories contain configuration elements to be installed on the dashboard server:

• drupal contains the drupal installation
• oonib contains the OONI backend configuration for the dashboard
• salt contains Salt master-side configuration for both probes and relays