PUQ Mautic

Installation and Configuration Guide

Step-by-step instructions for installing, configuring, and setting up the Nextcloud WHMCS module, including Nextcloud server preparation, WHMCS integration, email templates, and product configuration.

WHMCS setup (install/update)

Nextcloud module WHMCS

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System requirements

Requirement Minimum version
PHP 8.2 or higher
WHMCS 9.x or higher
ionCube Loader v13 or newer (v14, v15)

Note: The module uses ionCube encoding. Make sure ionCube Loader is installed and active on your server.

Download

The module can be ordered and downloaded from PUQ Cloud:

wget https://download.puqcloud.com/WHMCS/servers/PUQ_WHMCS-Nextcloud/php82/PUQ_WHMCS-Nextcloud-latest.zip

Older module versions for WHMCS 8 are available in PHP-specific directories:

After downloading, extract the archive:

unzip PUQ_WHMCS-Nextcloud-latest.zip

Installation

Step 1: Upload files

Extract the module archive and copy the puqNextcloud directory to the WHMCS servers module directory:

WHMCS_WEB_DIR/modules/servers/puqNextcloud

Step 2: Add server

Navigate to System Settings → Servers → Add New Server:

  1. Enter the correct Name and Hostname
  2. In Server Details, select the PUQ Nextcloud module
  3. Enter valid Nextcloud web interface credentials (username and password)
  4. Click Test connection to verify

Step 3: Create product

Navigate to System Settings → Products/Services → Create a New Product:

  1. Select the PUQ Nextcloud module in the Module settings section
  2. Configure the product parameters

Update

Step 1: Backup

Before updating, it is recommended to back up:

Step 2: Upload new files

Download and extract the new version, then overwrite all files in:

WHMCS_WEB_DIR/modules/servers/puqNextcloud/

Step 3: Verification

  1. Log in to the WHMCS admin panel
  2. Check the module is functioning correctly
  3. Verify product settings

Important (v3.0): Product reconfiguration is required after updating to version 3.0.

Setup guide: Nextcloud setup

Nextcloud module WHMCS

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Nextcloud including Nextcloud Office on Debian10 with nginx, MariaDB, PHP 8.1, Let's Encrypt, Redis, Fail2ban and ufw

This guide covers the complete installation and configuration of a Nextcloud server from scratch on Debian, including all required components.

1. Preparation and installation of nginx web server

Install required packages:

apt-get install -y \
  curl wget git apt-transport-https gnupg2 \
  imagemagick libmagickcore-6.q16-6 libmagickwand-6.q16-6 \
  software-properties-common dirmngr lsb-release ca-certificates \
  unzip

Configure hostname

Edit /etc/hosts with server IP and FQDN:

127.0.0.1 localhost
YOUR_SERVER_IP your.domain.com

Edit /etc/hostname:

your.domain.com

Reboot the system:

reboot

Install nginx

Add the nginx repository and install:

apt-get install -y nginx

Remove conflicting web servers:

apt-get remove -y apache2

Enable and start nginx:

systemctl enable nginx
systemctl start nginx

Configure nginx

Backup the default configuration and create a custom one:

cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak

Key nginx.conf settings include:

Create required directories:

mkdir -p /var/log/nextcloud /var/nc_data /var/www/letsencrypt/.well-known/acme-challenge /etc/letsencrypt/rsa-certs /etc/letsencrypt/ecc-certs

2. Installation and configuration of PHP 8.1 (FPM)

Install PHP packages:

apt-get install -y \
  php-common php8.1-fpm php8.1-gd php8.1-curl php8.1-xml \
  php8.1-zip php8.1-intl php8.1-mbstring php8.1-bz2 \
  php8.1-ldap php8.1-apcu php8.1-bcmath php8.1-gmp \
  php8.1-imagick php8.1-igbinary php8.1-mysql php8.1-redis \
  php8.1-smbclient php8.1-cli php8.1-opcache php8.1-readline \
  imagemagick

Optional packages for LDAP/Samba:

apt-get install -y ldap-utils nfs-common cifs-utils

Configure timezone

timedatectl set-timezone Europe/Warsaw

Key PHP optimizations

Backup and configure PHP settings:

3. Installation and configuration of MariaDB 10.8

Database security hardening

mysql_secure_installation

Database configuration

Custom MariaDB configuration (/etc/mysql/my.cnf):

Create Nextcloud database

CREATE DATABASE nextclouddb CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
CREATE USER nextclouddbuser@localhost identified by 'nextclouddbpassword';
GRANT ALL PRIVILEGES on nextclouddb.* to nextclouddbuser@localhost;
FLUSH privileges;

Important: Replace nextclouddbpassword with a strong password.

4. Installing and configuring Redis

Install and configure Redis:

apt-get install -y redis-server

Configuration:

usermod -aG redis www-data

Set kernel parameter:

echo "vm.overcommit_memory = 1" >> /etc/sysctl.conf

Reboot the system before Nextcloud installation.

5. Installation and optimization of Nextcloud (incl. SSL)

Certbot and Let's Encrypt setup

apt-get install -y certbot python3-certbot-nginx

nginx vhost configuration

Create /etc/nginx/conf.d/nextcloud.conf with:

Generate SSL certificate

certbot --nginx -d yourdomain.com

Auto-renewal crontab:

0 12 * * * /usr/bin/certbot renew --quiet

Install Nextcloud

Download and verify:

cd /usr/local/src
wget https://download.nextcloud.com/server/releases/latest.zip
wget https://download.nextcloud.com/server/releases/latest.zip.md5
md5sum -c latest.zip.md5 < latest.zip

Extract and set permissions:

unzip latest.zip -d /var/www
chown -R www-data:www-data /var/www/nextcloud

Silent installation

sudo -u www-data php /var/www/nextcloud/occ maintenance:install \
  --database "mysql" \
  --database-name "nextclouddb" \
  --database-user "nextclouddbuser" \
  --database-pass "nextclouddbpassword" \
  --admin-user "YourNextcloudAdmin" \
  --admin-pass "YourNextcloudAdminPassword" \
  --data-dir "/var/nc_data"

Configure trusted domain

sudo -u www-data php /var/www/nextcloud/occ config:system:set trusted_domains 0 --value=your.domain.com

CLI URL configuration

sudo -u www-data php /var/www/nextcloud/occ config:system:set overwrite.cli.url --value=https://your.domain.com

Extended configuration

Create /var/www/nextcloud/config/tweaks.config.php with settings including:

App management

sudo -u www-data php /var/www/nextcloud/occ app:disable survey_client
sudo -u www-data php /var/www/nextcloud/occ app:disable firstrunwizard
sudo -u www-data php /var/www/nextcloud/occ app:enable admin_audit
sudo -u www-data php /var/www/nextcloud/occ app:enable files_pdfviewer

Optional Nextcloud Office installation:

sudo -u www-data php /var/www/nextcloud/occ app:install richdocuments
sudo -u www-data php /var/www/nextcloud/occ app:install richdocumentscode

Restart services

systemctl stop nginx php8.1-fpm
systemctl restart mysql php8.1-fpm redis nginx

Set up cron

As www-data user:

*/5 * * * * php -f /var/www/nextcloud/cron.php > /dev/null 2>&1

Reconfigure to cron mode:

sudo -u www-data php /var/www/nextcloud/occ background:cron

Pin packages

Prevent unwanted package updates:

apt-mark hold nginx* redis* mysql* galera* mariadb* php*

Nextcloud setup 15-nextcloud-setup.png

6. System hardening with Fail2ban and UFW

Fail2ban configuration

Install Fail2ban:

apt-get install -y fail2ban

Create Nextcloud filter (/etc/fail2ban/filter.d/nextcloud.conf):

Create Nextcloud jail (/etc/fail2ban/jail.d/nextcloud.local):

[nextcloud]
backend = auto
enabled = true
port = 80,443
protocol = tcp
maxretry = 5
bantime = 3600
findtime = 36000
logpath = /var/log/nextcloud/nextcloud.log

UFW firewall configuration

ufw allow 80/tcp comment "LetsEncrypt(http)"
ufw allow 443/tcp comment "LetsEncrypt(https)"
ufw allow 22/tcp comment "SSH"
ufw enable

Setup guide: WHMCS setup

Nextcloud module WHMCS

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System requirements

Requirement Minimum version
PHP 8.2 or higher
WHMCS 9.x or higher
ionCube Loader v13 or newer (v14, v15)

Note: The module uses ionCube encoding. Make sure ionCube Loader is installed and active on your server.

Older module versions for WHMCS 8 are available in PHP-specific directories:

Step 1: Download the module

wget https://download.puqcloud.com/WHMCS/servers/PUQ_WHMCS-Nextcloud/php82/PUQ_WHMCS-Nextcloud-latest.zip

Step 2: Extract the archive

unzip PUQ_WHMCS-Nextcloud-latest.zip

Step 3: Copy module files

Copy the puqNextcloud directory to:

WHMCS_WEB_DIR/modules/servers/

Step 4: Add server in WHMCS

Navigate to System Settings → Servers → Add New Server

  1. Enter the correct Name and Hostname
  2. In the Server Details section, select the PUQ Nextcloud module
  3. Enter valid Nextcloud web interface credentials (username and password)
  4. Click Test connection to verify the connection

Add server - general settings 04-add-server-1.png

Add server - module settings 05-add-server-2.png

Step 5: Create product in WHMCS

Navigate to System Settings → Products/Services → Create a New Product

Select the PUQ Nextcloud module in the Module settings section.

WHMCS product module settings 06-whmcs-setup.png

Email Template (puqNextcloud notification disk limit)

Nextcloud module WHMCS

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Creating the email template

Navigate to System Settings → Email Templates → Create New Email Template

Template configuration

Parameter Value
Email Type Product/service
Unique Name puqNextcloud Notification disk limit

Email subject

Disk space usage {$disk_used_percentage} % - {$username}

Email body

Dear {$client_name},

We would like to inform you that the disk space usage for your
product/service has reached the notification threshold.

Product/Service: {$service_product_name}
Due Date: {$service_next_due_date}
Username: {$username}

Disk Limit: {$disk_limit}
Disk Used: {$disk_used} ({$disk_used_percentage}%)
Disk Free: {$disk_free} ({$disk_free_percentage}%)

Please take the necessary actions to manage your disk space.

{$signature}

Available template variables

The following custom variables are passed to the email template by the module:

Variable Description Example
{$username} Nextcloud username john-42
{$disk_limit} Total disk quota with unit 10 GB
{$disk_used} Used disk space with unit 8.5 GB
{$disk_free} Free disk space with unit 1.5 GB
{$disk_used_percentage} Used space as percentage 85
{$disk_free_percentage} Free space as percentage 15

In addition, all standard WHMCS product/service merge fields are available (e.g. {$client_name}, {$service_product_name}, {$service_next_due_date}, {$signature}).

Note: Notifications are sent automatically during the WHMCS daily cron execution when disk usage reaches the threshold configured in the product settings ("Notify at %").

Screenshots

Email template creation 07-email-template-1.png

Email template configuration 08-email-template-2.png

Add server (Nextcloud server)

Nextcloud module WHMCS

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Adding a Nextcloud server to WHMCS

Navigate to System Settings → Servers → Add New Server

Step 1: General settings

Enter the correct Name and Hostname for your Nextcloud server.

If your Nextcloud uses a non-standard port, enter it in the Port field. Check the Secure checkbox if your server uses HTTPS (recommended).

Add server - general settings 04-add-server-1.png

Step 2: Module settings

  1. In the Server Details section, select the PUQ Nextcloud module from the dropdown
  2. Enter valid credentials for the Nextcloud web interface:
    • Username — Nextcloud administrator username
    • Password — Nextcloud administrator password
  3. Click Test connection to verify the connection is working correctly

The test connection verifies that the module can reach the Nextcloud OCS API (/ocs/v1.php/cloud/users/) and authenticate with the provided credentials.

Add server - module settings 05-add-server-2.png

Important: The Nextcloud user must have administrator privileges to manage users via the API. The module uses the Nextcloud OCS API v1 with HTTP Basic Authentication to create, modify, suspend, and delete user accounts.

Product Configuration

Nextcloud module WHMCS

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Add new product to WHMCS

Navigate to System Settings → Products/Services → Create a New Product

Select the PUQ Nextcloud module in the Module settings section.

Configuration parameters

Parameter Description
License key A pre-purchased license key for the PUQ Nextcloud module. The license must be active for correct operation. After saving, the verification status is displayed below the field.
Disk size Allocated disk space for the Nextcloud user. Set to 0 for unlimited quota. Minimum value: 0.
Disk unit Unit used for the allocated disk space. Available options: MB, GB, TB, PB.
Notify at % Disk usage threshold in percent (1–100). A notification email is sent when usage reaches this value. Default: 90. Set to 0 to disable notifications.
Email template Email template used for low disk space notifications. Select from available Product/service type email templates. The template must be created manually in WHMCS (see Email Template page).
Save history (days) Number of days to store disk usage statistics in WHMCS. Older records are automatically deleted during cron execution.
Group Nextcloud group assigned to the user on the server side. The group is created automatically if it does not exist. When changing packages, the user is removed from all groups and added to the new group.
Username rule Rule for automatic username generation using macros (see below). Default: {client_id}-{service_id}.
Password rule Password generation rule in length:charset format (see below). Default: 12:123456789QAZWSXEDCRFVTGBYHNUJMIKqazwsxedcrfvtgbyhnujmikolp.
Link to instruction URL to instructions displayed as a button in the client area. Leave empty to hide the button.
Show password Defines how the password is shown in the client area. Options: Show button (hidden by default, revealed on click), Plain text (always visible), No (hidden, no option to reveal).

Username rule — available macros

The username is generated automatically when a new account is created. You can use the following macros:

Macro Description Example
{client_id} WHMCS client ID 123
{service_id} WHMCS service ID 456
{unixtime} Current Unix timestamp 1707638400
{year} Current year 2026
{month} Current month (01–12) 02
{day} Current day (01–31) 12
{hour} Current hour (00–23) 14
{minute} Current minute (00–59) 30
{second} Current second (00–59) 45
{random_digit_x} x random digits (0–9) {random_digit_4} → 7394
{random_letter_x} x random letters (A–Z, a–z) {random_letter_6} → aBcDeF

Examples:

Note: If the generated username already exists on the Nextcloud server, the module automatically appends a counter: username-1, username-2, etc.

Password rule — format

The password rule uses the format length:charset, where:

Examples:

If no rule is specified, a 12-character password is generated from a default character set.

Important notes

Warning: This module works only as a server module (Products/Services). It cannot be used as an addon product. Attempting to use it with addon products will result in an error.

Screenshot

Product configuration settings 09-product-configuration.png