The Application of Linux Pseudo-terminal Device in the L2TP

Discussed the basic principles of terminal equipment of Linux pseudo, as well as the naming process and a typical structure of pseudo-terminal. Analyzed how access to and use of pseudo-terminals pseudo-terminal master and slave data communications equipment dynamically. Combination of layer two tunneling protocol (L2TP) to achieve the Linux process, it gives the flexibility to increase end-user VPN, that is obtained by the use of dynamic pseudo-terminal device to start PPP connection.