SEP 12.1.5 support for these client versions

Hello all , I want to install SEP 12.1.5 on the following versions of linux . Please confirm whether these versions are officially supported 

1. CentOS 5.2 and CentOS 5.4

2. HP Unix

3. Sun OS.

I want to know if I can install SEP 12.1.5 on these versions and whether if they are officially supported. Thanks