References

 [1]

W. Richard Stevens. UNIX Network Programming. Prentice Hall, Englewood Cliffs, New Jersey, 1990.

 [2]

Douglas E.  Comer and David L.  Stevens. Internetworking with TCP/IP, Volume III: Client-Server Programming and Applications. (Second Edition) Prentice Hall, Englewood Cliffs, New Jersey, 1996.