Privbind is a tool for running a command as an unprivileged user, with additional reserved port binding privileges. Normally in Unix only a superuser process can bind an Internet domain socket with a privileged port (port numbers less than 1024). Accordingly, server processes are typically run with superuser privileges, which can be dropped after binding the reserved port. The privilege dropping has to be a part of the server\'s code. Privbind can run a server, right from the start, under an unprivileged non-root user with just one extra privilege: the server will be able to bind to reserved ports.Here are some key features of \"Privbind\":