There comes time, when Apple releases new OS X Server version and existing server is acting up. And that time is perfect for spring cleaning, updates and upgrades.
So this time came. Apple has OS X 10.6 Snow Leopard Server for quite some time now, with bunch of possible bugs and kinks worked out, with skinnier footprint and increased performance on existing hardware. Our existing server, which hosts DNS, DHCP acts as Open Directory Master and on top of that serves files via AFP and SMB, after multiple “hard resets” is not performing how it once did. It also, for some reasons, lost it’s “single sign-on” capabilities via AFP (while it’s OD Replica works just fine). And, on top of that all, time showed that having DHCP and DNS on the server that every now and then “freezes” and requires “hard reset” is not a practical idea – once server is “hung”, users cannot access network at all.