---
title: FAQ
description: Frequently asked questions about installing, licensing, connecting infrastructure and running NexCMP.
url: https://nexcmp.com/docs/troubleshooting/faq/
applies_to: NexCMP 1.6.1
updated: 2026-11-02
---

# FAQ

## Licensing

**What happens if my license expires or the server loses Internet access?**
The token stays valid for 14 days and renews daily. After that, customers cannot create **new** services; running services, billing and logins keep working. See [License and purchase](https://nexcmp.com/docs/getting-started/license-and-purchase/).

**Do I still get security fixes after my update entitlement ends?**
Yes — security releases are always delivered; feature releases need an active entitlement.

**Can I run NexCMP on a second server or domain?**
Activate it with the key and the domain registered on the license — see [License and purchase](https://nexcmp.com/docs/getting-started/license-and-purchase/#moving-to-a-new-server-or-domain).

## Installation

**Does NexCMP need Docker, PostgreSQL or Redis?**
No. It is one program with SQLite databases, run by systemd as an unprivileged user. See [Requirements](https://nexcmp.com/docs/getting-started/requirements/).

**Can I install without a public domain?**
Yes, use `--no-nginx` and an SSH tunnel — see [Installation](https://nexcmp.com/docs/getting-started/installation/#installing-without-a-public-domain-lab-or-test).

**Why is port 3000 closed after setup?**
For security the panel listens on `127.0.0.1` once the wizard is done and TLS is active. Use `sudo nexcmp open-port` for emergencies.

## Infrastructure

**Can I use CloudStack and Proxmox VE together?**
Yes. A zone can have both; each plan chooses its source. See [Proxmox VE](https://nexcmp.com/docs/infrastructure/proxmox/) and [Zones](https://nexcmp.com/docs/infrastructure/zones/).

**Do I need the ROOT API key of CloudStack?**
No — and you should not use it. Create a dedicated account — [CloudStack](https://nexcmp.com/docs/infrastructure/cloudstack/).

**Why do some tabs or buttons not appear on a virtual machine?**
Pages show only what the VM's source supports (for example, Proxmox VE has no port forwarding). See the capability table in [Proxmox VE](https://nexcmp.com/docs/infrastructure/proxmox/).

## Operations

**How do I move NexCMP to another server?**
Back up, install the same version on the new server with the same license, restore — see [Backup and restore](https://nexcmp.com/docs/getting-started/backup-and-restore/).

**Where are the logs?**
`journalctl -u nexcmp -u nexcmp-vmd`, `/var/log/nexcmp`, and the admin console under System › Logs. See [Audit log](https://nexcmp.com/docs/administration/audit-log/).

**Can I see the customer portal before I install?**
Yes. The service pages on [nexcmp.com](https://nexcmp.com/platform/) show the customer portal tab by tab with sample data; open *View demo* for the full-screen viewer. To see a real install, write to sales.