Supported and unsupported technologies

DreamHost supports a wide variety of technologies to help support and customize your hosting environment. If you do not find your technology listed in the tables below, please contact DreamHost support to confirm if it's supported.

The following apply to DreamHost's managed hosting platforms. If you have a Dedicated server with an admin user or are using DreamCompute, these limitations may not apply.

Apache mods

Mods Supported? Details
mod_rewrite YES Enabled by default on all servers.
mod_perl NO Visit the Perl article for details.
mod_php NO Not supported on Shared hosting, but you may enable this on a VPS or Dedicated server. If sudo access is required, you must install on a Dedicated server using an admin user.
mod_proxy NO Not supported on Shared hosting, but you may enable this on a VPS or Dedicated server. If sudo access is required, you must install on a Dedicated server using an admin user.
mod_security YES This is enabled by default. Visit the Mod Security article for details.

Applications/software/programs

App/software/program Supported? Details
CafeCommerce NO As of 2014, DreamHost no longer offers this service.
cURL YES Enabled on all servers. Visit the cURL article for details.
Erlang / Elixer / Phoenix NO Not supported, but you may install on a VPS or Dedicated server. However, if sudo access is required, you must install on a Dedicated server using an admin user.
Flash YES Supported on all servers.
FTP/SFTP/SSH YES Visit the following articles for details:
FTPS NO Not supported on any server.
CGI scripts YES Supported on all servers.
.htaccess files YES Visit the .htaccess article for details.
ionCube YES Not installed by default, but can be set up manually. Visit the IonCube Loader article for details.
IPv6 YES Visit the IPv6 article for details.
Jabber YES Visit the Jabber article for details.
JIRA NO Not supported on Shared hosting, but you may enable this on a VPS or Dedicated server. If sudo access is required, you must install on a Dedicated server using an admin user.
Minecraft NO Not supported on Shared hosting, but you may enable this on a VPS or Dedicated server. If sudo access is required, you must install on a Dedicated server using an admin user.
Mailman YES All 'Discussions Lists' use Mailman.
PHP Zip YES Enabled by default on all servers.
Quickbooks NO Not available on Linux servers.
SOAP YES Enabled by default on all servers. Visit the SOAP article for details.
Subversion (version control) YES Visit the Subversion article for details.
Tomcat NO Not supported on shared hosting, but you may install this on a Dedicated server.
WooCommerce YES You can install this on any WordPress plan.
Zend Optimizer NO Zend Optimizer was used for PHP 5.2 and lower. Newer versions of PHP must use ZendGuard Loader.

Languages/scripts

Language/script Supported? Details
ASP NO Microsoft technologies are not supported.
ColdFusion NO --
Java JRE YES Visit the Java article for further information.
JSON YES Installed on all servers.
.NET NO Microsoft technologies are not supported.
PHP YES Visit the following articles for details:
Python YES Visit the Python article for details.
Ruby YES Visit the following articles for details:
  • Ruby on Rails
  • RVM

Servers (web and database)

Server Supported? Details
Lighttpd NO Service was removed in 2013.
Linux YES DreamHost servers currently run Ubuntu. Older VPS and Dedicated machines may still run Debian, but this is no longer supported by DreamHost.
MongoDB NO Removed in 2017.
MySQL YES Servers run version 5.6. Visit MySQL for further information.
Nginx YES Visit the Nginx article for details.
Node.js YES Available only on VPS and Dedicated servers. Visit the Node.js article for details.
PostgreSQL NO Not supported on shared hosting, but you may install this on a Dedicated server. Visit the PostgreSQL article for details.
Redis NO You may install this on a Dedicated server.
sqlite3 YES Visit the SQLite article for details.

Services and add-ons

Service Supported? Details
Automatic backups YES DreamHost backs up web server data and MySQL databases automatically. However, this is not guaranteed. Review the Backup category for details.
Cloudflare YES DreamHost partners with Cloudflare to bring you this service. Visit the following articles for details:
Cloud services YES DreamObjects and DreamCompute are the two current Cloud services available.
Domain registrations YES Domain registrations can be purchased without a DreamHost account. Registrations can also be added to any existing account.
Email filters YES Anti-spam filters can be enabled on all accounts. Additional custom filters may also be added.
Google Suite YES Visit the Google Suite article for details.
HTTP/2 YES HTTP/2 is currently only supported for domains on DreamPress, as well as VPS and Dedicated machines powered by Nginx. Shared hosting currently does not support an HTTP/2 connection.
Memcached YES Only available on Dedicated servers. View the 'Memcached overview' article for details.
Mobile site builder NO --
Multi-factor Authentication YES Enabling Multifactor Authentication can be enabled on any DreamHost account.
OpenSSL NO OpenSSL is installed on all servers, but technical support is unable to assist with any issues.
PGP Email YES You can set up PGP encryption with all DreamHost email accounts.
Remote Desktops NO --
Reselling NO There is no specific service set up, but you can resell services to your clients. View the Reselling article for details.
Statistics YES Site statistics are enabled by default on all accounts. View the following articles for details:
SSL certificates YES Visit the following articles for details:

Site builder applications

Site builder applications such as WordPress, MediaWiki, and Joomla can be used to quickly build a website without knowledge of HTML.

Supported site builder applications

For a current and updated list, please visit the following article:

Unsupported site builder applications

These applications are not supported, however you can still install them manually if you wish.

Unavailable site builder applications Details
Drupal Visit the Drupal article for details.
Koken You can still install this manually.
Magento Visit the Magento article for details.
Moodle You can still install this manually.
OxWall CMS You can still install this manually.
Zimbra You can still install this manually.

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