Getting Started with DirectAdmin: What kind of server do I need?
Operating System:
Redhat Linux 7.2, 7.3, 8.0, 9.0
RedHat Fedora 1.0, 2.0, 3.0, 4.0
RedHat Enterprise / CentOS 3.x, 4.x (64-bit is supported in 4.x only)
FreeBSD 4.7, 4.8, 4.9, 4.10, 4.11, 5.0, 5.1, 5.2, 5.2.1, 5.3, 5.4
Debian Sarge/Woody