> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.abtutor.cloud/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# What are the system requirements for AB Tutor v8?

**This article applies to:**
* AB Tutor v8
As AB Tutor is a complex piece of software, we cannot guarantee that it will work perfectly with every possible configuration of hardware, software and security. For this reason, we recommend that you trial AB Tutor for 30 days to check that it is compatible with your environment. Please contact [support@abtutor.com](mailto:support@abtutor.com) if you encounter any issues at all during the trial period.
Operating system:
* Microsoft Windows 7, Windows 8, Windows 10,
* Mac OSX 10.8 or newer
No special requirements are necessary to run the AB Client in a Windows Terminal Server environment. Any system that supports normal Windows Sessions is supported (e.g. Citrix, nComputing).
Network and access:
* TCP/IP and UDP network protocol running Windows Sockets 2.0, using static or dynamic IP addresses
* TCP and UDP port 5151 and an alternate port, 5152, must be available and not blocked by firewalls etc. (See Appendix II)
* Multicast option enabled in all routers and firewalls if computers are situated on different subnets and if you want to connect over a wireless network.
* Unrestricted access to the Internet for registration and licensing. You must make sure the domain name www.abtutor.com is not blocked and that you do not allow any filters to restrict access to this site.