What does bind mean in linux

In Linux, bind is a command line tool and a system call function used to bind a network socket to a specified address and port. It is usually used in server programs. In server programs When started, it binds its socket to a specific IP address and port in order to listen for network connection requests on that address and port.

The operating system of this tutorial: Linux5.18.14 system, Dell G3 computer.

In Linux, bind is a command line tool and a system call function. It is used to bind a network socket (socket) to a specified address and port. This binding operation is usually used for server programs. When the server program is started, its socket is bound to a specific IP address and port in order to listen for network connection requests on that address and port.

The bind command can be used to configure network services, such as DNS server (named), Web server (Apache), FTP server (vsftpd), etc. It allows administrators to specify the IP address and port number the server listens on, as well as other related parameters. Through the bind command, administrators can control which address and port the network service provides services on, and limit the acceptance of connection requests from certain specific addresses.

In addition, in programming, the bind() function is also used to create a socket and bind it to the specified address and port, so that the application can communicate with the network through the socket communicate. The bind() function is very common in network programming and is one of the basic steps in building server-side programs.

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