Installing FOSSBilling

Prerequisites

A domain or subdomain dedicated to FOSSBilling.
A server that meets the system requirements.
A web server running a FOSSBilling-compatible configuration.

Web Server Configuration

Apache usually requires no extra application-specific configuration. The templates below for other web servers should be treated as starting points and adjusted for your own paths, SSL settings, and deployment conventions.

Apache & LiteSpeed / OpenLiteSpeed
NGINX

FOSSBilling includes a ready-to-use .htaccess file for Apache and LiteSpeed / OpenLiteSpeed. Set up your domain as you normally would, then proceed with installation.

OpenLiteSpeed users: After installation, remember to reload the web server so it picks up the new .htaccess file.

Use the configuration below as a starting point for running FOSSBilling on NGINX. Be sure to replace placeholder values (like %%DOMAIN%% and %%SOURCE_PATH%%) and adjust SSL paths to match your environment.

server {
  listen 80;
  server_name %%DOMAIN%%;
  return 301 https://$host$request_uri;
}

server {
  listen 443 ssl http2;
  ssl_certificate      /path/to/ssl/certificate.crt;
  ssl_certificate_key  /path/to/ssl/certificate.key;
  ssl_stapling on;
  ssl_stapling_verify on;

  set $root_path %%SOURCE_PATH%%;
  server_name %%DOMAIN%%;

  index index.php;
  root $root_path;
  try_files $uri $uri/ @rewrite;
  sendfile off;
  include /etc/nginx/mime.types;

  # Block access to sensitive files
  location ~* .(ini|sh|inc|bak|twig|sql)$ {
    return 403;
  }

  # Block /vendor completely
  location ^~ /vendor/ {
    return 403;
  }

  # Block direct access to config.php
  location = /config.php {
    return 403;
  }

  # Block access to hidden files except .well-known
  location ~ /\.(?!well-known\/) {
    return 403;
  }

  # Disable PHP execution in /uploads
  location ~* /uploads/.*\.php$ {
    return 403;
  }

  # Deny access to /data, except /assets/gateways
  location ~* /data/(?!(assets/gateways/)) {
    return 403;
  }

  location @rewrite {
    rewrite ^/page/(.*)$ /index.php?_url=/custompages/$1;
    rewrite ^/(.*)$ /index.php?_url=/$1;
  }

  location ~ \.php$ {
    fastcgi_split_path_info ^(.+\.php)(/.+)$;

    # fastcgi_pass need to be changed according your server setup:
    # phpx.x is your server setup
    # examples: /var/run/phpx.x-fpm.sock, /var/run/php/phpx.x-fpm.sock or /run/php/phpx.x-fpm.sock are all valid options
    # Or even localhost:port (Default 9000 will work fine)
    # Please check your server setup

    fastcgi_pass unix:/run/php/phpx.x-fpm.sock;
      fastcgi_param PATH_INFO       $fastcgi_path_info;
      fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
      fastcgi_intercept_errors on;
      include fastcgi_params;
    }

    location ~* ^/(css|img|js|flv|swf|download)/(.+)$ {
      root $root_path;
      expires off;
    }
}

Pre-installation Steps

Download FOSSBilling: Download the latest stable release from our downloads page.
Prepare your database: Create a new MySQL database and a dedicated user for this installation. Keep the credentials handy for the installer.
Set up SSL: If you plan to use HTTPS, and you should, configure and verify your certificate before you start the installer.
Configure reverse-proxy headers: If you run behind a reverse proxy, forward the X-Forwarded-Host and X-Forwarded-Proto headers so FOSSBilling can generate the correct URLs and enforce HTTPS properly.

Installation Steps

Clean your document root: Remove placeholder files created by your control panel, such as default index pages or sample .htaccess files, so they do not interfere with routing.

Upload and extract FOSSBilling: Upload the release you downloaded and extract it into your document root. Your directory should look similar to this:

├── data
├── install
├── library
├── locale
├── modules
├── themes
├── vendor
├── config-sample.php
├── cron.php
├── di.php
├── index.php
...

Launch the installer: Visit the domain you set up for FOSSBilling. If you are using HTTPS, access it over https:// so the application configures secure URLs automatically.

You may need to fix folder permissions before the installer can run.

If you see the FOSSBilling installer welcome page below, you're ready to proceed.
Complete the setup wizard: Follow the on-screen steps to accept the license, enter your database credentials, and create your administrator account.
Configure the default currency: The price format must include {{price}} as a placeholder. Place your currency symbol before or after it, for example {{price}} USD or $ {{price}}.
Install: Click install and wait for the success page to appear.

Post-installation Steps

Once the installer finishes, configure the cron job before you begin using the system as soon as possible.

Configuring the Cronjob

FOSSBilling relies on cron to handle renewals, expired orders, email delivery, background checks, and other scheduled work. It needs to be configured correctly, run consistently, and execute often enough to keep the platform healthy.

We recommend running cron every five minutes. If more than 15 minutes pass without a run, FOSSBilling will show a warning in the admin panel. Treat the warning as urgent. FOSSBilling warning about cron execution

Local Cron Job

FOSSBilling shows the correct cron command on the installation-complete screen and again in the admin panel. If you need to find it later, go to Settings -> Scheduled Tasks (/admin/extension/settings/cron).

Cron settings - correct cron command