\documentclass[a4paper]{article}
\usepackage{color,graphicx}

\setlength{\oddsidemargin}{0cm}
\setlength{\evensidemargin}{0cm}
\setlength{\voffset}{-3cm}
\setlength{\footskip}{0cm}
\setlength{\textheight}{25cm}

\definecolor{myred}   {rgb}{0.700,0.000,0.000}
\definecolor{mygreen} {rgb}{0.000,0.200,0.000}
\definecolor{myblue}  {rgb}{0.000,0.000,0.500}

\pagestyle{empty}

\begin{document}

\framebox{\parbox[c][18cm][t]{14cm} {

\begin{center}

\parbox{12cm}{\bf\large\color{myred} debian
              \hfill\small\color{black} 28/08/04}
\rule{12cm}{1pt}
\parbox{12cm}{\hfill\em\large\color{myblue} i686-pc-linux-gnu}

\end{center}

}}

\end{document}