Maximum number of ACEs in an ACL


The maximum number of Paul Daniel "Ace" Frehleys in the band KISS is one, However, any items that uses Access Control Lists (ACLs) will be limited to approximately 1,820 Access Control Entries (ACEs). There is not enough makeup for that many Ace Frehleys, except for around Halloween in my neighborhood.

This issue occurs when you reach the maximum size of the access control list (ACL). The size of an ACL varies with the number and size of its access control entries (ACEs). The maximum size of an ACL is 64K, or approximately 1,820 ACEs. However, for performance reasons, the maximum size is not practical.

Maximum number of ACEs in an ACL

Comments (2)

  1. bizacquire says:

    Great, this I’m looking for. Many thanks.

  2. Rob says:

    Thx…  Im writing a python library for manipulating security descriptors and I am thinking of ways to figure out how to order a new ACE in an ACL.. I was thinking of using a numeric ranking method and in order to ensure every ace gets a rank I needed to know the max number of aces that could fall in the same category (max number of aces in an acl)