Unix commands

A BSD socket is basically an early version of a POSIX socket. It is used to connect a Unix system to the internet.

There isn't a generalized way from the command line in Unix to connect to a socket; there are socket libraries you can utilize from within the 'C' language to assign, bind, and connect to a specific socket address. For example:

int connect(int s, const struct sockaddr *name, int namelen);

In Linux, you can use the 'socket' command to connect to a specific socket as:

socket ?options? host port

Where the host is the IP address and the port is the port number (giving you the socket address).

Most modern operating systems (Windows, Linux, Unix, mainframes) support SSH and SSL.

The UNIX operating system consists of Regular Computer files. In addition there are listed file directory , symbolic link file, named pipe file, domain socket file, device file, and doors (computing) file.