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The FreeBSD Operating System provides the sysctl system call to get and set the state of the system at runtime. The kernel exposes the available parameters for sysctl as objects in a Management Information Base (MIB). Today, FreeBSD includes thousands of sysctl parameters. Moreover, these parameters can be added or removed dynamically, so the kernel must provide additional features for exploring the MIB and retrieving extra information about each object (name, description, format, and so on).

WebSysctl aims to collect all possible sysctl parameters along with their properties.
It provides: MIB represented like a table, a tree, and list, a page for each parameter both in dot notation kern.ostype and in path notation kern/ostype.

Statistical:

• Last Update: 2025-04-26
• Total nodes: 8914
  • Internal Nodes: 1499
  • Leaves: 7415
  • Nodes with handler: 7386