Redhat Linux 7.2, 7.3, 8.0, 9.0
RedHat Fedora 1, 2, 3, 4, 5, 6, 7, 8 (not supporting future versions)
RedHat Enterprise / CentOS 3.0, 3.1, 3.2, 3.3, 4.x, 5.x, 6.x (64-bit: 4.1 - 4.5, 5.x, 6.x)
FreeBSD 4.7, 4.8, 4.9, 4.10, 4.11, 5.x, 6.x, 7.x, 7.x 64-bit, 8.x 64-bit (7.3 may require an exim recompile)
ข้อมูลเพิ่มเติม
http://www.directadmin.com/install.html