I Googled this question, and came up with an array of responses applicable to ESX vs ESXi vs really old versions vs. not so old versions that say yes, no, I don't know, only when, except if... Searching the Install & Setup guide returns 104 matches that all seem to be about very specific cases, none of which are "Here's how to make this work with LDAP!"
How do I have my standalone ESXi server authenticate against LDAP? And, preferably, only allow access to users in a particular group?