Cacti is an open-source network monitoring and graphing platform built on RRDtool.

It provides a scalable framework to collect, store, and visualize time-series data from network devices, servers, and applications.

Core capabilities include:

• Automated device discovery
• Local and remote data collection
• Graph, data source, and RRA templating
• SNMP polling (v1/v2/v3) and IPv6 support
• Role-based access control (RBAC)
• Plugin framework
• Dynamic graph viewing and export options

Cacti maintains two primary branches:

For the latest published version, see GitHub Releases.

Minimum supported dependencies by branch:

Notes:

• RRDtool 1.9+ is recommended for newer dynamic graph features in 1.3.x.
• Net-SNMP 5.9+ is recommended for broader SNMPv3 protocol coverage.
• A web server with PHP support is required.
• PHP should be available as CLI or CGI for scheduled polling and maintenance scripts.
• php-snmp is optional; validate behavior carefully if you depend on IPv6 and SNMPv3.

Operating system guidance:

• 1.2.x: RHEL/Rocky/Alma 8+ (or equivalent) is a common baseline.
• 1.3.x: RHEL/Rocky/Alma 9+ or CentOS Stream 9+ is preferred for modern PHP packaging.
• Debian and Ubuntu are also well supported.

Clone the repository:

git clone https://github.com/Cacti/cacti.git
cd cacti

Dependency management:

• For a source checkout on both 1.2.x and develop, install dependencies with Composer.
• Use composer update only when intentionally refreshing dependency versions.

Install dependencies:

composer install

Windows users may need:

composer install --ignore-platform-req=ext-pcntl --ignore-platform-req=ext-posix

Then configure your database and web server, and complete setup using the official docs:

https://github.com/Cacti/documentation

When running from source (especially develop), schema updates may be required after pulling changes.

Upgrade the database schema:

sudo -u cacti php -q cli/upgrade_database.php --forcever=`cat include/cacti_version`

If needed, force a re-upgrade from an earlier version:

php -q cli/upgrade_database.php --forcever=<older_version>

Audit schema consistency:

php cli/audit_database.php --report

Cacti collects data through data sources, which can use:

• SNMP
• Scripts
• Command output
• Databases
• Custom input methods

Polling engines:

Spine supports SNMPv1/v2 and SNMPv3 with IPv6, with some advanced protocol support depending on how Net-SNMP is compiled on your platform.

• Device discovery and automation workflows
• Reusable templates for graphs and data sources
• Distributed remote data collectors
• Plugin architecture for extensibility
• Dynamic graph interactions (time navigation, realtime view, CSV export)
• Fine-grained user and group permissions using RBAC
• Broad RRDtool graphing support (including VDEFs and stacked lines)

Official documentation is maintained in a separate repository:

https://github.com/Cacti/documentation

Contributions are welcome.

1. Fork this repository.
2. Create a branch for your change.
3. Submit a pull request.

You can also help improve docs in:

https://github.com/Cacti/documentation

Community support is available on the Cacti forums:

https://forums.cacti.net

Cacti is licensed under the GNU General Public License v2.0.

See LICENSE for details.

Copyright (c) 2004-2026 The Cacti Group, Inc.