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Hosts is a system file without an extension, and its function is to establish an associated "database" between some commonly used URL domain names and their corresponding IP addresses. When a user enters a URL that needs to be logged in in the browser, the system will first automatically look for the corresponding IP address from the Hosts file. Once found, the system will immediately open the corresponding web page.

For all distributions of the Linux operating system, the host file is located at:

/ etc/hosts

Linux is a free-to-use and free-spread Unix-like operating system. It is a multi-user, multi-task, multi-threaded and multi-CPU operating system based on POSIX and Unix. It runs major Unix tools, applications, and network protocols.

It supports 32 bit and 64 bit hardware. Linux inherits the design idea of Unix with network as the core, and is a multi-user network operating system with stable performance.

Linux is not only a stable system, but also an open source software. The core firewall components have high performance and simple configuration, which ensures the security of the system. In many enterprise networks, in order to pursue speed and security, Linux operating system is not only used as a server by network operators, Linux can be used not only as a server, but also as a network firewall is a bright spot of Linux.

Compared with other operating systems, Linux has the characteristics of open source, no copyright and many users in the technical community. Open source enables users to cut freely, with high flexibility, powerful functions and low cost.

In particular, the network protocol stack is embedded in the system, which can realize the function of the router after proper configuration. These characteristics make Linux an ideal development platform for developing routing switching devices.

The birth, development and growth of Linux operating system always depend on five important pillars: Unix operating system, MINIX operating system, GNU project, POSIX standard and Internet network.

Linus Torvalds, a sophomore at the University of Helsinki in Finland, is one of them. On the basis of absorbing the essence of MINIX, Linus wrote his own Linux operating system in 1991, the version is Linux0.01, which marks the beginning of the Linux era. He uses the core of Unix, removes complicated core programs, rewrites it into an x86 system suitable for general computers, and puts it on the network for everyone to download. In 1994, he launched a complete core Version1.0. Since then, Linux has gradually become a fully functional and stable operating system, and has been widely used.

The above is the details of where the linux host file is, please pay attention to other related articles!

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