Panelica

Panelica is a next-generation Linux server management panel built from scratch in Go and React, designed to replace heavyweight legacy panels like cPanel and Plesk. Modern stack, API-first — every UI action is also a REST API call AND a CLI command.

-------- KEY DIFFERENTIATORS --------

5-LAYER ISOLATION (industry-leading) • Cgroups v2 — CPU, memory, IO, PID limits per user • Linux Namespaces — CageFS-style per-user rootfs • SSH Chroot — SFTP-only or full bash + chroot • PHP-FPM per-user per-version pool (open_basedir) • UID/GID isolation, home 0700, sudo-as-user ownership

TRIPLE INTERFACE • Internal REST API (panel UI) • External REST API with HMAC-SHA256 auth • CLI (panelica) — full endpoint parity

BUILT-IN MODERN TOOLKIT • WordPress Toolkit — install, clone, staging, WP-CLI • Docker Manager — per-user containers, compose • Git Deploy — deploy from any Git repo • Migration from cPanel / Plesk / DirectAdmin (file + DB hash preservation, no password resets) • Cloudflare native: Origin Cert (15-year), DNS-01 wildcard, auto proxy detection

SMART SSL AUTOMATION • 1-click Auto-Issue with strategy selector (CF Origin / DNS-01 wildcard / SAN aggregate / HTTP-01 / TLS-ALPN) • OCSP stapling, HSTS preload, TLS 1.3 by default • Self-healing reconciler

PRODUCTION STACK (isolated under /opt/panelica/) • Web: nginx 1.28 + Apache 2.4 • PHP: 8.1 ? 8.5 parallel + ionCube 15.5 • Databases: PostgreSQL 17 + MySQL 8 • Mail: Postfix + Dovecot + DKIM + ClamAV • DNS: BIND9 with Cloudflare bridge • FTP: ProFTPD with chroot + per-user quota • Cache: Redis 7 • Security: ModSecurity + OWASP CRS, Fail2ban, AppArmor, nftables

OPERATIONS • Incremental backups (per-domain, per-DB, snapshots) • Real-time bandwidth + disk quota • 31-language UI • RBAC: ROOT ? ADMIN ? RESELLER ? USER • 246 documented API endpoints • Single Go binary backend — minimal RAM

-------- PANELICA vs cPanel -------- • 5-layer isolation vs cgroups-only • REST API native vs XML whitelist • Single Go binary vs ~30 cpsrvd processes • 31 languages vs ~10 • Built-in Docker (cPanel: paid plugin) • Modern React 19 UI, mobile-responsive

-------- PANELICA vs Plesk -------- • Open architecture — every config visible in /opt/panelica/ • Modern Go stack vs PHP control plane • Native Cloudflare Origin Certificate • Per-user per-version PHP with isolated FPM pools • Full CLI parity with UI • Lower licensing cost