Enterprise Class Open Source

There are literally hundreds of thousands of Open Source projects, as you would expect from a thriving ecosystem around the dominant software paradigm of our times. Of course that doesn't mean you would trust your organisation to all of it.

At Sirius we believe in Darwinian evolution and natural selection, and we use the term 'enterprise class' to describe the software you could, and we believe should, run your organisation on.

Open Source software becomes enterprise class when it reaches a critical mass of development, maturity, stability and usability... and most of all when it is used in production environments for real-world workloads by organisations just like yours.

We support a wide range of enterprise-class Open Source software and its interaction with proprietary software from the usual proprietary vendors.

We support

• Operating Systems we support Open Source-based network services and applications running on Linux, BSD, Solaris and Windows
• LDAP Directory up to core team support for OpenLDAP or running Open Source applications in within an Active Directory infrastructure
• Groupware we specialise in supporting enterprise alternatives to Exchange such as OpenGroupware and Kolab on Linux
• Enterprise Linux Desktop support for KDE and Gnome on the Red Hat Linux, Ubuntu Linux and OpenSuse Linux
• MediaWiki including single sign-on functionality, failover and replication on Linux and Solaris
• Samba helping you manage the Open Source alternative for data sharing between Linux file servers and Microsoft clients
• Squid Proxy unrivalled Squid expertise based in the UK, clients include Pepsico, 3, UCAS and Yorkshire and Humberside Grid for Learning
• JBoss the leading Open Source middleware for web and enterprise applications, includes Apache Tomcat
• Apache the world's most popular web server with over 70% market share
• PostgreSQL up to core team level support for the most powerful Open Source database
• Cyrus IMAP and Murder clustering experience to sites with 10,000s of mailboxes