Any Linux/BSD/Windows operating system is fine, if you have any specific version of the operating system/distribution you want loaded, please open a ticket at the client area with the link to the ISO file and we'll load in the file into our system.
A small list of operating systems included by default can be found below
|Operating System||Arch||Exact Version|
|CentOS 7||x86_64 only||7.2.1511|
|CentOS 6||x86 and x86_64||6.7|
|CentOS 5||x86 and x86_64||5.11|
|Debian 7||x86 and x86_64||7.8|
|Debian 8||x86 and x86_64||8.1|
|Debian 9||x86 and x86_64||9|
|Ubuntu 14.04||x86 and x86_64||14.04|
|Ubuntu 16.04||x86 and x86_64||16.04|
|FreeBSD 10||x86 and x86_64||10.0|
|FreeBSD 11||x86 and x86_64||11.0|
|Windows 2008 180 day trial||x86_64||2008 R2|
|Windows 2012 180 day trial||x86_64||2012 R2|
Clients can choose these as needed from the VPS panel and install it on their VPS.
If you need a special version of Windows mounted, you can open a ticket at the client area after order with a link to the ISO and we can load it in, We do not provide license keys for Windows and nor are they included in any of the plans, client's have to use their own keys as needed. We have a guide here as well for using Windows on KVM plans.