\begin{thebibliography}{1}

\bibitem{rfc1350}
K.~Sollins, ``The {TFTP} protocol (revision 2),'' Request for Comments 1350,
  Internet Engineering Task Force, July 1992.

\bibitem{rfc1738}
T.~Berners-Lee, L.~Masinter, and M.~McCahill, ``Uniform resource locators
  {(URL)},'' Request for Comments 1738, Internet Engineering Task Force, Dec.
  1994.

\bibitem{rfc764}
J.~Postel, ``Telnet protocol specification,'' Request for Comments 764,
  Internet Engineering Task Force, June 1980.

\end{thebibliography}
