Can multiple people manage the same server?
Yes. You can invite additional admin users to share server management access. If you are running a hosting business, the reseller system lets you create reseller accounts that can manage their own subset of hosting accounts independently. Collaborators with admin access can do everything the primary admin can. Resellers see only their own accounts.
Does Opterius support .htaccess?
Yes — via a Nginx + Apache dual-stack mode that you can enable per domain.
By default every domain runs on Nginx only (faster, lower memory). When you enable .htaccess support for a domain in the panel (Domains → toggle), Opterius switches that domain to Nginx + Apache mode:
- Nginx continues to handle SSL, static files, and caching at the public edge.
- Apache runs on
127.0.0.1:8080as the PHP backend, reading.htaccessfiles with fullAllowOverride Allandmod_rewritesupport.
This means WordPress, Joomla, Drupal, Magento, PrestaShop, and any legacy cPanel site that relies on .htaccess works exactly as it did before — no rule conversion needed.
Sites that don't need .htaccess (Laravel, custom PHP apps, Node.js) should keep the toggle off for best performance.
Can I use Opterius to manage a server I already have sites on?
The installer assumes a fresh server. Running the installer on a server with existing sites carries a risk of overwriting Nginx, PHP-FPM, and other service configurations.
For migrating existing accounts from cPanel, use the built-in cPanel importer (upload the cPanel backup .tar.gz file). For other control panels (Plesk, DirectAdmin, HestiaCP), migration is manual — see Migration FAQ.
If you want to bring over sites by hand, set up the hosting accounts through the Panel first, then transfer files and databases manually.
Is the source code available?
The Panel is open-source and available on GitHub. You can inspect it, contribute, or fork it.
The Agent binary (/usr/local/bin/opterius-agent) is closed-source. It contains the license enforcement logic and server-level privileged operations. Pre-built binaries are provided for all supported operating systems.
What happens if I uninstall Opterius?
The uninstaller removes the Panel application (/opt/opterius), the Agent binary, and the Panel's Nginx vhost. It does not touch your hosting accounts — websites, files, databases, email, and Nginx vhosts for your accounts remain on disk exactly as they were.
If you want to fully clean the server, you would need to manually delete account home directories, databases, DNS zones, and Nginx vhosts for each account, or terminate accounts via the Panel before uninstalling.
What operating systems are supported?
Ubuntu 22.04, Ubuntu 24.04, Debian 11, Debian 12, AlmaLinux 8, AlmaLinux 9, Rocky Linux 8, Rocky Linux 9, RHEL 8, RHEL 9, and CentOS Stream 9. See Supported Operating Systems for the full compatibility matrix.
Is there a web-based file manager?
Yes — the File Manager is included for all accounts in both Hosting Mode and Server Mode. It supports upload, download, edit, rename, delete, permissions, and archive extraction. No separate install required.