Core Selynt

Setuid root binary of Selynt Panel — process manager for web applications on DirectAdmin servers.

Warning

This project is under active development. Some features may be unstable or change behavior between versions. It is not recommended for production environments without prior validation.

Overview

core-selynt is invoked by the Selynt Panel plugin. Each execution:

1. Requires euid=0 (setuid mandatory)
2. Resolves the real user via the USERNAME variable → /etc/passwd
3. Creates/validates the state directory in /var/lib/selynt_panel/{user}/
4. Performs privilege drop (setuid/setgid/initgroups + PR_SET_NO_NEW_PRIVS) before executing any logic
5. Returns JSON on stdout and exits with code 0 (success), 1 (user error) or 2 (system error)

Quick links

• Build & Installation
• Commands
• Environment variables
• State structure
• Socket communication
• Security

License

Copyright © 2026 NullSablex. Licensed under GNU AGPL-3.0-or-later.