Opendium Documentation

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Since Opendium was formed in 2005, we have built a reputation for having a good technical understanding. Whilst you can always rely on our support team to solve your problems, we also provide comprehensive documentation to help you to help yourself.

This website contains documentation for Opendium's Online Safety products. Please click one of the following links to access the appropriate documentation, or use the search function.

  • Product manuals: Detailed information regarding how to configure our online safety products.
  • How-to guides: Step by step instructions.
  • Knowledgebase: Useful knowledge regarding your Opendium system, and best practice guidelines for your whole network.

Contact support

If you are unable to find the information you require on this website, please contact our support team for help. For non-urgent queries, it is usually best to contact us by email at and one of our highly experienced engineers will get back to you as soon as possible. Please remember to include a contact phone number in case we need to call you.

For more urgent matters, feel free to pick up the phone and give us a call on (01792) 825748. Our standard support hours are 09:00 - 17:00 Monday - Friday, excluding public holidays. It would helpful if you have to hand your customer number or the number of an open ticket that the call relates to.

We recognise that your time is valuable and that you have better things to do than listen to hold music. We therefore don't operate a telephone call queuing system - if we can't take your call immediately, please leave a message with your name, number and a brief description of the problem, and we'll get back to you as soon as possible.


Urgent service impacting problems must be raised by telephone. Please call (01792) 825748 and follow the menu options to raise an emergency call, which will page one of our engineers. Please note that out-of-hours emergency calls may incur a charge for customers who do not subscribe to an extended support hours contract. If we are unable to answer the call immediately, please leave a message with your name, number and a description of the problem and we will look into it and get back to you as soon as possible.

Note: if you do not leave a message we will not know who called, or what the problem is and therefore cannot respond. Our engineers will therefore not be automatically paged if you do not leave a voicemail!

Service Level Agreement

Our Service Level Agreement is available on our main website.

Source Code

We use a great deal of open source software in our products, and this allows us to produce very robust and cost effective solutions. We always try to participate in the open source communities, and contribute our work back to the projects that we rely on so that everyone can benefit.

Based on Red Hat Enterprise Linux, CentOS forms the underlying operating system for our systems and the source code for this can be downloaded through the CentOS web site. The source code for the open source parts of our systems which have been developed solely by us, or are modifications of third party software is available from our SubVersion repository, which you can browse through Trac.

Last word

We are always interested in feedback. If you really like a feature of our products, think that something could be improved or have a suggestion for a new feature that would make your life easier, please drop us a line!