When a disk is mounted, it means that the OS prepares the disk to be read. This is a firewall that allows an administrator to block selectively certain ports on a network device. HTTP stands for Hyper Text Transfer Protocol . This group of protocols is responsible for the connections and data transfers that take place on the Internet. In a Nutshell Anyone that works with Linux for any period of time will eventually run into the term kernel .
Every OS has a kernel.
The Linux kernel, loosely speaking, provides the same functions as other OSs. When you need to load something from the hard drive, or you switch between running applications, or an application needs to save a file, the OS or application being used must request access to the hardware it needs. The kernel provides services to the other parts of the OS or to applications to sort out these requests, or what part of RAM is allocated to which application. The kernel is what keeps an orderly discussion between the hardware and the software. You might be wondering how the kernel does all of this.