Which utility is used to insert a module into the Linux kernel?

The utility used to insert a module into the Linux kernel is 'insmod'. This command allows users to load a specified kernel module directly into the kernel space. When you execute 'insmod', it takes the module file (usually with a .ko extension) and places it into the running kernel, enabling the use of the features or functions provided by that module.

While 'modprobe' is also used for loading modules, it handles module dependencies automatically and is typically the preferred tool for managing kernel modules in a more complex environment. It searches for the module in the standard directories and loads any required dependencies before inserting the module. Although modprobe can achieve similar results to insmod, it does so in a more automated manner.

'rmmod' is a command used to remove a module from the kernel, and 'lsmod' provides a list of currently loaded modules. Both serve different purposes and do not apply to the question of inserting a module.

Understanding this context is essential for managing kernel modules effectively in Linux environments.