path: root/el_GR.ISO8859-7/books/handbook/preface/preface.xml

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<preface xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0" xml:id="book-preface">
  <title>Ðñüëïãïò</title>

  <bridgehead xml:id="preface-audience" renderas="sect1">Óå Ðïéïõò Áðåõèýíåôáé
    Áõôü ôï Âéâëßï</bridgehead>

  <para>Ôï ðñþôï ôìÞìá áõôïý ôïõ âéâëßïõ, ïäçãåß ôïí íÝï ÷ñÞóôç óôç
    äéáäéêáóßá åãêáôÜóôáóçò ôïõ &os; êáé ôïí åéóÜãåé ïìáëÜ óôç öéëïóïößá
    êáé ôïí ó÷åäéáóìü ôïõ &unix;.  Áõôü ôï ôìÞìá äåí Ý÷åé éäéáßôåñåò
    áðáéôÞóåéò.  Áñêåß ìüíï ç äéÜèåóç ãéá åîåñåýíçóç åíüò íÝïõ óõóôÞìáôïò êáé
    ç äõíáôüôçôá áöïìïßùóçò ôùí ãíþóåùí ãéá ôï &os; êáèþò áõôÝò åéóÜãïíôáé
    óôáäéáêÜ.</para>

  <para>Áöïý äéáâÜóåôå ôï ðñþôï ôìÞìá, ôï äåýôåñï, êáôÜ ðïëý ìåãáëýôåñï ôìÞìá,
    ðåñéëáìâÜíåé ìéá åêôåíÞ áíáöïñÜ óå äéÜöïñá èÝìáôá ðïõ åíäéáöÝñïõí
    ôïõò äéá÷åéñéóôÝò óõóôçìÜôùí &os;.  ÌåñéêÜ áðü áõôÜ ôá êåöÜëáéá åßíáé
    åõêïëüôåñï íá ôá êáôáíïÞóåôå áí Ý÷åôå Þäç ìåëåôÞóåé óõãêåêñéìÝíá ôìÞìáôá
    ôïõ âéâëßïõ.  ¼ðïõ ÷ñåéÜæåôáé êÜôé ôÝôïéï, èá áíáöÝñåôáé óôç óýíïøç ôïõ
    êåöáëáßïõ ðïõ ìüëéò îåêéíÞóáôå íá äéáâÜæåôå.</para>

  <para>Ãéá ðåñéóóüôåñåò ðçãÝò ðëçñïöïñéþí, äåßôå ôï
    <xref linkend="bibliography"/>.</para>

  <bridgehead xml:id="preface-changes-from3" renderas="sect1">ÁëëáãÝò áðü ôçí
    Ôñßôç ¸êäïóç</bridgehead>

  <para>Ç ôñÝ÷ïõóá Ýêäïóç ôïõ Åã÷åéñéäßïõ óôï äéáäßêôõï, åßíáé ôï
    áðïôÝëåóìá ôçò ðñïóðÜèåéáò ðïëëþí åêáôïíôÜäùí åèåëïíôþí óôï äéÜóôçìá
    ôùí ôåëåõôáßùí 10 ÷ñüíùí.  Ïé ðéï óçìáíôéêÝò áëëáãÝò óå ó÷Ýóç ìå ôçí
    ôñßôç Ýíôõðç Ýêäïóç ôïõ Åã÷åéñéäßïõ (2004) öáßíïíôáé ðáñáêÜôù:</para>

  <itemizedlist>
    <listitem>
      <para>Ôï <xref linkend="dtrace"/> åßíáé Ýíá íÝï êåöÜëáéï ìå
	ðëçñïöïñßåò ó÷åôéêÜ ìå áõôü ôï ðáíßó÷õñï åñãáëåßï áíÜëõóçò
	áðüäïóçò.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="filesystems"/> åßíáé Ýíá íÝï êåöÜëáéï
	ìå ðëçñïöïñßåò ãéá óõóôÞìáôá áñ÷åßùí ôá ïðïßá
	õðïóôçñßæïíôáé áðü ôï &os; áëëÜ áíáðôýóóïíôáé áðü Üëëåò ïìÜäåò, üðùò
	ôï ZFS áðü ôçí &sun;.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="audit"/> åßíáé Ýíá
	íÝï êåöÜëáéï ìå ðëçñïöïñßåò ó÷åôéêÜ ìå ôéò íÝåò äõíáôüôçôåò êáé ôçí
	÷ñÞóç ôïõ auditing óôï &os;.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="virtualization"/> åßíáé Ýíá íÝï
	êåöÜëáéï ìå ðëçñïöïñßåò ó÷åôéêÜ ìå ôçí åãêáôÜóôáóç ôïõ &os; óå
	ëïãéóìéêü åêôÝëåóçò åéêïíéêþí (virtual) ìç÷áíçìÜôùí.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="bsdinstall"/>
	&os;&nbsp;9.<replaceable>x</replaceable> êáé ÌåôáãåíÝóôåñùí
	Åêäüóåùí, åßíáé Ýíá íÝï êåöÜëáéï ó÷åôéêÜ ìå ôçí åãêáôÜóôáóç ôïõ
	&os; ìå ôç âïÞèåéá ôïõ íÝïõ ðñïãñÜììáôïò
	<application>bsdinstall</application>.</para>
    </listitem>
  </itemizedlist>

  <bridgehead xml:id="preface-changes-from2" renderas="sect1">ÁëëáãÝò áðü ôç
    Äåýôåñç ¸êäïóç (2004)</bridgehead>

  <para>Ç ôñßôç Ýêäïóç áõôïý ôïõ âéâëßïõ Þôáí ôï áðïôÝëåóìá ôçò ðñïóðÜèåéáò
    ðåñéóóüôåñùí áðü äýï ÷ñüíùí áðü ôá ìÝëç ôçò ÏìÜäáò Ôåêìçñßùóçò ôïõ &os;.
    Ç Ýíôõðç Ýêäïóç åß÷å ôüóï ìåãÜëï ìÝãåèïò, ðïõ êñßèçêå áíáãêáßï íá ôõðùèåß
    óå äýï ÷ùñéóôïýò ôüìïõò.  ÐáñáêÜôù öáßíïíôáé ïé óçìáíôéêüôåñåò áëëáãÝò óå
    áõôÞ ôç íÝá Ýêäïóç:</para>

  <itemizedlist>
    <listitem>
      <para>Ôï <xref linkend="config-tuning"/>
	åðåêôÜèçêå ìå íÝåò ðëçñïöïñßåò ãéá ôç
	äéá÷åßñéóç åíÝñãåéáò êáé ðüñùí ôïõ óõóôÞìáôïò ìÝóù ACPI, ìå
	ðåñéóóüôåñåò ðëçñïöïñßåò ãéá ôï óýóôçìá <command>cron</command> êáé
	ìå ðåñéóóüôåñåò åðéëïãÝò ðáñáìåôñïðïßçóçò ôïõ ðõñÞíá ôïõ &os;.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="security"/> åðåêôÜèçêå
	ìå íÝåò ðëçñïöïñßåò ãéá Äßêôõá VPN, ãéá ëßóôåò åëÝã÷ïõ ðñüóâáóçò
	áñ÷åßùí (ACLs) êáé ðåñéóóüôåñåò óõìâïõëÝò ó÷åôéêÜ ìå ôçí áóöÜëåéá ôïõ
	&os;.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="mac"/>
	åßíáé Ýíá íÝï êåöÜëáéï óå áõôÞ ôçí Ýêäïóç.  Åîçãåß ôé åßíáé ï
	ìç÷áíéóìüò MAC êáé ðþò ìðïñåß íá ÷ñçóéìïðïéçèåß ãéá íá åíéó÷õèåß ç
	áóöÜëåéá åíüò óõóôÞìáôïò &os;.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="disks"/>
	åðåêôÜèçêå, ìå íÝåò ðëçñïöïñßåò ãéá óõóêåõÝò áðïèÞêåõóçò USB,
	óôéãìéüôõðá óõóôÞìáôïò áñ÷åßùí (snapshots), ðåñéïñéóìïýò óôç ÷ñÞóç
	ôùí óõóôçìÜôùí áñ÷åßùí (quotas), óõóôÞìáôá áñ÷åßùí ðïõ âáóßæïíôáé
	óå õðÜñ÷ïíôá áñ÷åßá Þ óôï äßêôõï, êáèþò êáé êñõðôïãñáöçìÝíåò
	êáôáôìÞóåéò äßóêùí.</para>
    </listitem>

    <listitem>
      <para>ÐñïóôÝèçêå ìéá åíüôçôá ó÷åôéêÜ ìå ôçí áíôéìåôþðéóç ðñïâëçìÜôùí
	óôï <xref linkend="ppp-and-slip"/>.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="mail"/>
	åðåêôÜèçêå ìå íÝåò ðëçñïöïñßåò ãéá ôçí ÷ñÞóç
	åíáëëáêôéêþí MTA, ðéóôïðïßçóç ôáõôüôçôáò óôï SMTP, ôï ðñùôüêïëëï
	UUCP, ôá åñãáëåßá <application>fetchmail</application> êáé
	<application>procmail</application> êáé ìå Üëëá èÝìáôá ãéá
	ðñï÷ùñçìÝíïõò.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="network-servers"/>
	ðåñéëáìâÜíåôáé ãéá ðñþôç öïñÜ óå áõôÞ ôçí Ýêäïóç.  Áõôü
	ôï êåöÜëáéï ðåñéãñÜöåé ðùò íá åãêáôáóôÞóåôå ôïí
	<application>ÄéáêïìéóôÞ HTTP Apache</application>, ôïí åîõðçñåôçôÞ
	<application>ftpd</application> ôïõ &os; êáé ôïí äéáêïìéóôÞ
	<application>Samba</application> ãéá åðéêïéíùíßá ìå ðåëÜôåò
	&microsoft; &windows;.  Óôï êåöÜëáéï áõôü, Ý÷ïõí ìåôáöåñèåß êÜðïéåò
	åíüôçôåò áðü ôï <xref linkend="advanced-networking"/> (Ðñï÷ùñçìÝíá
	ÈÝìáôá Äéêôýùóçò), ðñïêåéìÝíïõ íá âåëôéùèåß ç ðáñïõóßáóç ôïõò.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="advanced-networking"/>
	åðåêôÜèçêå ìå íÝåò ðëçñïöïñßåò ãéá ôç ÷ñÞóç
	óõóêåõþí &bluetooth; óôï &os;, ôçí åãêáôÜóôáóç áóýñìáôùí äéêôýùí,
	êáé ôçí ÌÝèïäï Äéêôýùóçò Áóýã÷ñïíçò ÌåôáöïñÜò (ATM).</para>
    </listitem>

    <listitem>
      <para>ÐñïóôÝèçêå Ýíá Ëåîéëüãéï, ãéá íá óõãêåíôñþóåé üëïõò ôïõò
	ôå÷íéêïýò üñïõò êáé ôïõò äéÜöïñïõò ïñéóìïýò ðïõ ðåñéÝ÷ïíôáé óå
	ïëüêëçñï ôï âéâëßï.</para>
    </listitem>

    <listitem>
      <para>¸ãéíáí áéóèçôéêÝò âåëôéþóåéò óôïõò ðßíáêåò êáé óôá ãñáöÞìáôá óå
	ïëüêëçñï ôï âéâëßï.</para>
    </listitem>
  </itemizedlist>

  <bridgehead xml:id="preface-changes" renderas="sect1">ÁëëáãÝò áðü ôçí Ðñþôç
    ¸êäïóç (2001)</bridgehead>

  <para>Ç äåýôåñç Ýêäïóç Þôáí ôï áðïôÝëåóìá ôïõëÜ÷éóôïí äýï ÷ñüíùí åñãáóßáò
    áðü ôá ìÝëç ôçò ÏìÜäáò Ôåêìçñßùóçò ôïõ &os;.  Ïé ðéï óçìáíôéêÝò áëëáãÝò óå
    áõôÞ ôçí Ýêäïóç Þôáí ïé ðáñáêÜôù:</para>

  <!-- Talk a little about justification and other stylesheet changes? -->

  <itemizedlist>
    <listitem>
      <para>ÐñïóôÝèçêå Ýíá ïëïêëçñùìÝíï ÅõñåôÞñéï.</para>
    </listitem>

    <listitem>
      <para>¼ëá ôá ãñáöÞìáôá óå ASCII áíôéêáôáóôÜèçêáí áðü ãñáöéêÜ
	äéáãñÜììáôá.</para>
    </listitem>

    <listitem>
      <para>ÐñïóôÝèçêå ìéá ôõðïðïéçìÝíç óýíïøç óå êÜèå êåöÜëáéï, ç ïðïßá
	ðåñéÝ÷åé ìéá óýíôïìç áíáêåöáëáßùóç ôùí ðëçñïöïñéþí ðïõ ðåñéÝ÷åé ôï
	êåöÜëáéï êáé ôé áíáìÝíåôáé íá ãíùñßæåé áðü ðñéí ï áíáãíþóôçò.</para>
    </listitem>

    <listitem>
      <para>Ôï ðåñéå÷üìåíï áíáäéïñãáíþèçêå óå ôñßá ëïãéêÜ ìÝñç:
	<quote>Îåêéíþíôáò ìå ôï &os;</quote>,
	<quote>Äéá÷åßñéóç ÓõóôÞìáôïò</quote> êáé
	<quote>ÐáñáñôÞìáôá</quote>.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="install"/>
	îáíáãñÜöôçêå áðü ôçí áñ÷Þ ìå ðïëëÝò åéêüíåò, þóôå íá äéåõêïëýíåé ôïõò
	÷ñÞóôåò íá êáôáíïÞóïõí ôï êåßìåíï.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="basics"/>
	åðåêôÜèçêå þóôå íá óõìðåñéëáìâÜíåé ðñüóèåôåò
	ðëçñïöïñßåò ãéá ôéò äéåñãáóßåò (processes), ôïõò äáßìïíåò (daemons),
	êáé ôá óÞìáôá (signals).</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="ports"/>
	åðåêôÜèçêå þóôå íá óõìðåñéëáìâÜíåé ðñüóèåôåò
	ðëçñïöïñßåò ãéá ôçí äéá÷åßñéóç ðñïìåôáãëùôôéóìÝíùí ðáêÝôùí
	(packages).</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="x11"/>
	îáíáãñÜöôçêå áðü ôçí áñ÷Þ ìå Ýìöáóç óôçí ÷ñÞóç ìïíôÝñíùí ôå÷íïëïãéþí,
	üðùò ôá ðåñéâÜëëïíôá åñãáóßáò <application>KDE</application> êáé
	<application>GNOME</application> óå &xfree86;&nbsp;4.X.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="boot"/>
	åðåêôÜèçêå ìå ðåñéóóüôåñåò ðëçñïöïñßåò.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="disks"/>
	îáíáãñÜöôçêå ìå âÜóç ôá ðáëáéüôåñá äýï êåöÜëáéá <quote>Äßóêïé</quote>
	êáé <quote>Áíôßãñáöá Áóöáëåßáò</quote>.  Ðéóôåýïõìå üôé ôá èÝìáôá áõôÜ
	åßíáé ðéï åõêïëïíüçôá üôáí ðáñïõóéÜæïíôáé ìáæß óáí Ýíá êåöÜëáéï.
	ÐñïóôÝèçêå åðßóçò ìéá åíüôçôá ãéá RAID (õëïðïßçóç ìÝóù õëéêïý Þ
	ëïãéóìéêïý).</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="serialcomms"/>
	áíáäéïñãáíþèçêå áðü ôçí áñ÷Þ êáé åíçìåñþèçêå ãéá
	ôéò åêäüóåéò &os;&nbsp;4.X/5.X.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="ppp-and-slip"/>
	åíçìåñþèçêå óå óçìáíôéêü âáèìü.</para>
    </listitem>

    <listitem>
      <para>Ðïëëïß íÝïé ôïìåßò ðñïóôÝèçêáí óôï
	<xref linkend="advanced-networking"/>.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="mail"/>
	åðåêôÜèçêå ãéá íá óõìðåñéëáìâÜíåé ðåñéóóüôåñåò ðëçñïöïñßåò ãéá ôéò
	ñõèìßóåéò ôïõ <application>sendmail</application>.</para>
    </listitem>

    <listitem>
      <para>Ôï <xref linkend="linuxemu"/>
	åðåêôÜèçêå ãéá íá óõìðåñéëáìâÜíåé ðëçñïöïñßåò
	ãéá ôçí åãêáôÜóôáóç ôçò âÜóçò äåäïìÝíùí
	<application>&oracle;</application> êáé ôïõ
	<application>&sap.r3;</application>.</para>
    </listitem>

    <listitem>
      <para>Óôçí äåýôåñç Ýêäïóç êáëýðôïíôáé åðßóçò ôá ðáñáêÜôù
	íÝá èÝìáôá:</para>

      <itemizedlist>
	<listitem>
	  <para><xref linkend="config-tuning"/>.</para>
	</listitem>

	<listitem>
	  <para><xref linkend="multimedia"/>.</para>
	</listitem>
      </itemizedlist>
    </listitem>
  </itemizedlist>

  <bridgehead xml:id="preface-overview" renderas="sect1">ÏñãÜíùóç Áõôïý ôïõ
    Âéâëßïõ</bridgehead>

  <para>Áõôü ôï âéâëßï ÷ùñßæåôáé óå ðÝíôå äéáêñéôÜ ëïãéêÜ ôìÞìáôá.
    Ôï ðñþôï ôìÞìá, <emphasis>Îåêéíþíôáò ìå ôï &os;</emphasis>, ðåñéãñÜöåé ôçí
    åãêáôÜóôáóç êáé ôçí âáóéêÞ ÷ñÞóç ôïõ &os;.  Ï ðñïôåéíüìåíïò ôñüðïò
    áíÜãíùóçò áõôïý ôïõ ôìÞìáôïò åßíáé Ýíá-Ýíá êåöÜëáéï, ìå ôç óåéñÜ,
    ðñïóðåñíþíôáò êåöÜëáéá ìå ãíùóôÜ èÝìáôá.  Ôï äåýôåñï ôìÞìá,
    <emphasis>ÂáóéêÝò Åñãáóßåò</emphasis>, ðåñéãñÜöåé ìåñéêÜ ÷áñáêôçñéóôéêÜ
    ôïõ &os; ôá ïðïßá ÷ñçóéìïðïéïýíôáé óõ÷íÜ.  Ìðïñåßôå íá äéáâÜóåôå ôá
    êåöÜëáéá óå áõôü ôï ôìÞìá (êáèþò êáé óå üëá ôá ôìÞìáôá ðïõ áêïëïõèïýí)
    ìå üðïéá óåéñÜ èÝëåôå.  ÊÜèå êåöÜëáéï îåêéíÜ ìå ìéá óáöÞ êáé óýíôïìç
    óýíïøç, ç ïðïßá ðåñéãñÜöåé ôá ðåñéå÷üìåíá ôïõ êåöáëáßïõ êáèþò êáé ôé
    ÷ñåéÜæåôáé íá ãíùñßæåé Þäç ï áíáãíþóôçò.  Áõôü åðéôñÝðåé óôïí
    ðåñéóôáóéáêü áíáãíþóôç íá ðñïóðåñíÜ ãñÞãïñá åíüôçôåò, ãéá íá âñåé
    êåöÜëáéá ôá ïðïßá ôïí åíäéáöÝñïõí ðåñéóóüôåñï.  Ôï ôñßôï ôìÞìá,
    <emphasis>Äéá÷åßñéóç ÓõóôÞìáôïò</emphasis>, ðåñéÝ÷åé èÝìáôá ó÷åôéêÜ ìå ôç
    äéá÷åßñéóç óõóôçìÜôùí &os;.  Ôï ôÝôáñôï ôìÞìá, <emphasis>ÄéêôõáêÝò
    Åðéêïéíùíßåò</emphasis>, êáëýðôåé èÝìáôá äéêôýùóçò êáé äéáêïìéóôþí.
    Ôï ðÝìðôï ôìÞìá ðåñéÝ÷åé ðáñáñôÞìáôá ìå äéÜöïñåò ðëçñïöïñßåò.</para>

  <variablelist>

<!-- ÌÝñïò I - ÅéóáãùãÞ -->

    <varlistentry>
      <term><emphasis><xref linkend="introduction"/></emphasis></term>

      <listitem>
	<para>ÐáñïõóéÜæåé ôï &os; óôï íÝï ÷ñÞóôç.  ÐåñéãñÜöåé ôçí
	  éóôïñßá ôïõ &os;&nbsp;Project, ôïõò óôü÷ïõò ôïõ êáé ôï ìïíôÝëï
	  áíÜðôõîçò ôïõ.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="bsdinstall"/></emphasis></term>

      <listitem>
	<para>Ïäçãåß ôïí ÷ñÞóôç óôçí äéáäéêáóßá åãêáôÜóôáóçò ôïõ
	  &os;&nbsp;9.<replaceable>x</replaceable> êáé ìåôáãåíÝóôåñùí
	  åêäüóåùí ìå ôç ÷ñÞóç ôïõ
	  <application>bsdinstall</application>.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="install"/></emphasis></term>

      <listitem>
	<para>Ïäçãåß ôïí ÷ñÞóôç óôçí äéáäéêáóßá åãêáôÜóôáóçò ôïõ
	  &os;&nbsp;8.<replaceable>x</replaceable> êáé ðñïãåíÝóôåñùí
	  åêäüóåùí ìå ôç ÷ñÞóç ôïõ <application>sysinstall</application>.
	  ÓõìðåñéëáìâÜíïíôáé åðßóçò ìåñéêÜ èÝìáôá åãêáôÜóôáóçò ãéá
	  ðñï÷ùñçìÝíïõò, üðùò ç åãêáôÜóôáóç ìÝóù óåéñéáêÞò êïíóüëáò.</para>
      </listitem>
    </varlistentry>


    <varlistentry>
      <term><emphasis><xref linkend="basics"/></emphasis></term>

      <listitem>
	<para>ÐåñéÝ÷åé ôéò âáóéêÝò åíôïëÝò êáé ëåéôïõñãßåò ôïõ ëåéôïõñãéêïý
	  óõóôÞìáôïò &os;.  ÅÜí åßóôå åîïéêåéùìÝíïò ìå ôï &linux; Þ ìå
	  Üëëï ëåéôïõñãéêü ôýðïõ &unix; ìðïñåßôå ðéèáíþò íá ðñïóðåñÜóåôå
	  áõôü ôï êåöÜëáéï.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="ports"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôïí ôñüðï åãêáôÜóôáóçò ëïãéóìéêïý ôñßôùí
	  êáôáóêåõáóôþí ìå ôçí êáéíïôüìï <quote>ÓõëëïãÞ ôùí Ports (Ports
	  Collection)</quote> ôïõ &os; êáé ìå ôá óõíÞèç ðñïìåôáãëùôôéóìÝíá
	  ðáêÝôá (packages).</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="x11"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ãåíéêÜ ôï óýóôçìá X&nbsp;Window êáé åéäéêüôåñá ôï
	  X11 ôïõ &os;.  Åðßóçò ðåñéãñÜöåé ïëïêëçñùìÝíá ðåñéâÜëëïíôá åñãáóßáò
	  üðùò ôï <application>KDE</application> êáé ôï
	  <application>GNOME</application>.</para>
      </listitem>
    </varlistentry>

<!--  ÌÝñïò II ÓõíÞèåéò Åñãáóßåò -->

    <varlistentry>
      <term><emphasis><xref linkend="desktop"/></emphasis></term>

      <listitem>
	<para>ÁíáöÝñåé êáé åîçãåß ìåñéêÝò áðü ôéò ðéï óõíÞèåéò åöáñìïãÝò
	  ãéá õðïëïãéóôÝò ãñáöåßïõ, üðùò ðñïãñÜììáôá ðëïÞãçóçò éóôïóåëßäùí êáé
	  åöáñìïãÝò ãñáöåßïõ êáé ðåñéãñÜöåé ðùò íá ôéò åãêáôáóôÞóåôå óôï
	  &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="multimedia"/></emphasis></term>

      <listitem>
	<para>Õðïäåéêíýåé ðùò íá åãêáôáóôÞóåôå äõíáôüôçôåò áíáðáñáãùãÞò Þ÷ïõ
	  êáé âßíôåï óôï óýóôçìá óáò.  Åðßóçò ðåñéëáìâÜíåé äåéãìáôïëçðôéêÜ
	  êÜðïéåò åöáñìïãÝò Þ÷ïõ êáé âßíôåï.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="kernelconfig"/></emphasis></term>

      <listitem>
	<para>Åîçãåß ôïõò ëüãïõò ãéá ôïõò ïðïßïõò èá ðñÝðåé íá äçìéïõñãÞóåôå
	  Ýíá íÝï ðõñÞíá.  ÐáñÝ÷åé, åðßóçò, ëåðôïìåñåßò ïäçãßåò ãéá ôçí
	  ñýèìéóç, ìåôáãëþôôéóç êáé åãêáôÜóôáóç ôïõ íÝïõ óáò ðñïóáñìïóìÝíïõ
	  ðõñÞíá.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="printing"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ðùò íá äéá÷åéñßæåóôå åêôõðùôÝò óôï &os;.
	  ÓõìðåñéëáìâÜíåé ðëçñïöïñßåò ãéá óåëßäåò ëïãïôýðùí, ëïãáñéáóìïýò
	  åêôõðùôþí êáé áñ÷éêÝò ñõèìßóåéò.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="linuxemu"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôéò äõíáôüôçôåò óõìâáôüôçôáò ôïõ &os; ìå åöáñìïãÝò
	  &linux;.  Åðßóçò ðáñÝ÷åé ëåðôïìåñåßò ïäçãßåò åãêáôÜóôáóçò ãéá ðïëëÝò
	  ãíùóôÝò åöáñìïãÝò ôïõ &linux; üðùò
	  <application>&oracle;</application>,
	  êáé <application>&mathematica;</application>.</para>
      </listitem>
    </varlistentry>

<!-- ÌÝñïò III - Äéá÷åßñéóç ÓõóôÞìáôïò -->

    <varlistentry>
      <term><emphasis><xref linkend="config-tuning"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôéò ðáñáìÝôñïõò ðïõ Ý÷ïõí óôç äéÜèåóç ôïõò ïé
	  äéá÷åéñéóôÝò ôïõ óõóôÞìáôïò, þóôå íá ñõèìßóïõí Ýíá óýóôçìá &os; ãéá
	  âÝëôéóôç áðüäïóç.  Åðßóçò ðåñéãñÜöåé ôá äéÜöïñá áñ÷åßá ñõèìßóåùí
	  ðïõ ÷ñçóéìïðïéïýíôáé óôï &os; êáé ðïõ íá ôá âñåßôå.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="boot"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôçí äéáäéêáóßá åêêßíçóçò ôïõ &os; êáé åîçãåß ðùò
	  ìðïñïýìå íá ôçí åëÝã÷ïõìå ìå ôç âïÞèåéá åðéëïãþí êáé
	  ñõèìßóåùí.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="users"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôçí äçìéïõñãßá êáé ôçí äéá÷åßñéóç ôùí ëïãáñéáóìþí
	  ÷ñçóôþí.  Åðßóçò ðåñéãñÜöåé ôñüðïõò ìå ôïõò ïðïßïõò ìðïñïýí íá
	  ôåèïýí ðåñéïñéóìïß óôïõò ÷ñÞóôåò üóï áöïñÜ ôç ÷ñÞóç ðüñùí ôïõ
	  óõóôÞìáôïò, êáèþò êáé Üëëåò ëåéôïõñãßåò äéá÷åßñéóçò
	  ëïãáñéáóìþí.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="security"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé äéÜöïñá äéáèÝóéìá åñãáëåßá ðïõ èá óáò âïçèÞóïõí íá
	  êñáôÞóåôå ôï &os; óýóôçìá óáò áóöáëÝò.  ÓõìðåñéëáìâÜíïíôáé ïé
	  õëïðïéÞóåéò Kerberos, IPsec êáé OpenSSH.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="jails"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôï ðëáßóéï ëåéôïõñãéþí ôùí jails êáé ôéò âåëôéþóåéò
	  ðïõ ðáñÝ÷ïõí óå ó÷Ýóç ìå ôçí ðáñáäïóéáêÞ chroot õðïóôÞñéîç
	  ôïõ &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="mac"/></emphasis></term>

      <listitem>
	<para>Åîçãåß ôé åßíáé ï Õðï÷ñåùôéêüò ¸ëåã÷ïò Ðñüóâáóçò (MAC) êáé
	  ðùò ï ìç÷áíéóìüò áõôüò ìðïñåß íá ÷ñçóéìïðïéçèåß ãéá ôçí áóöÜëéóç
	  åíüò &os; óõóôÞìáôïò.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="audit"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôé åßíáé ï ¸ëåã÷ïò ÓõìâÜíôùí, ðùò ìðïñåß íá
	  åãêáôáóôáèåß, íá ñõèìéóôåß êáé ðùò ìðïñïýí íá äéåñåõíþíôáé êáé íá
	  ðáñáêïëïõèïýíôáé ôá ß÷íç ôïõ åëÝã÷ïõ (audit trails).</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="disks"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ðùò íá äéá÷åéñßæåóôå ìÝóá áðïèÞêåõóçò êáé óõóôÞìáôá
	  áñ÷åßùí ìå ôï &os;.  ÓõìðåñéëáìâÜíïíôáé öõóéêïß äßóêïé, óõóôïé÷ßåò
	  RAID, ïðôéêÜ êáé ìáãíçôéêÜ ìÝóá, åéêïíéêïß äßóêïé ìíÞìçò êáé
	  äéêôõáêÜ óõóôÞìáôá áñ÷åßùí.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="GEOM"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôé åßíáé ôï ðëáßóéï ëåéôïõñãéþí GEOM óôï &os; êáé
	  ðùò íá ñõèìßóåôå äéÜöïñá åðßðåäá RAID ðïõ õðïóôçñßæïíôáé
	  óôï &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="filesystems"/></emphasis></term>

      <listitem>
	<para>ÅîåôÜæåé ôçí õðïóôÞñéîç ìç-åããåíþí óõóôçìÜôùí áñ÷åßùí óôï &os;,
	  üðùò ôï Z File System ôçò &sun;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="virtualization"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôé ðñïóöÝñïõí ôá óõóôÞìáôá åéêïíéêïðïßçóçò êáé ðùò
	  ìðïñïýí íá ÷ñçóéìïðïéçèïýí ìå ôï &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="l10n"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ðùò íá ÷ñçóéìïðïéÞóåôå ôï &os; óå ãëþóóåò åêôüò ôçò
	  ÁããëéêÞò.  Êáëýðôåé ôçí äõíáôüôçôá ôïðéêþí ñõèìßóåùí ôüóï óå
	  åðßðåäï óõóôÞìáôïò, üóï êáé óå åðßðåäï åöáñìïãþí.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="updating-upgrading"/></emphasis></term>

      <listitem>
	<para>Åîçãåß ôéò äéáöïñÝò ìåôáîý ôùí åêäüóåùí &os;-STABLE,
	  &os;-CURRENT êáé ôùí åðßóçìùí (RELEASE) åêäüóåùí ôïõ &os;.
	  ÐåñéãñÜöåé ðïéïé ÷ñÞóôåò ùöåëïýíôáé üôáí áêïëïõèïýí Ýíá óýóôçìá
	  áíÜðôõîçò êáèþò êáé ôá áðáéôïýìåíá ãéá áõôü ôï óêïðü âÞìáôá.
	  Êáëýðôåé ôéò ìåèüäïõò ðïõ ìðïñïýí íá ÷ñçóéìïðïéÞóïõí ïé ÷ñÞóôåò
	  ãéá íá åíçìåñþóïõí ôï óýóôçìá ôïõò ìå ôéò ôåëåõôáßåò äéïñèþóåéò
	  áóöáëåßáò.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="dtrace"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ôçí ñýèìéóç êáé ÷ñÞóç ôïõ åñãáëåßïõ &dtrace; ôçò
	  &sun; óôï &os;.  Ôï äõíáìéêü tracing ìðïñåß íá âïçèÞóåé óôïí
	  åíôïðéóìü ðñïâëçìÜôùí áðüäïóçò, ðáñÝ÷ïíôáò áíÜëõóç ôïõ óõóôÞìáôïò
	  óå ðñáãìáôéêü ÷ñüíï.</para>
      </listitem>
    </varlistentry>

<!-- Part IV - Åðéêïéíùíßåò Äéêôýùí -->

    <varlistentry>
      <term><emphasis><xref linkend="serialcomms"/></emphasis></term>

      <listitem>
	<para>Åîçãåß ðùò íá óõíäÝóåôå ôåñìáôéêÜ êáé ìüíôåì óôï &os; óýóôçìá
	  óáò, ãéá ÷ñÞóç ôüóï óå åéóåñ÷üìåíåò üóï êáé óå åîåñ÷üìåíåò
	  óõíäÝóåéò.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="ppp-and-slip"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ðùò íá ÷ñçóéìïðïéÞóåôå ôéò ôå÷íïëïãßåò PPP, SLIP, Þ
	  PPP ìÝóù Ethernet ãéá íá óõíäåèåßôå óå áðïìáêñõóìÝíá óõóôÞìáôá ìå ôï
	  &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="mail"/></emphasis></term>

      <listitem>
	<para>Åîçãåß ôá äéáöïñåôéêÜ óôïé÷åßá åíüò äéáêïìéóôÞ çëåêôñïíéêÞò
	  áëëçëïãñáößáò êáé åìâáèýíåé óå èÝìáôá áðëþí ñõèìßóåùí ãéá ôï ðëÝïí
	  äçìïöéëÝò ëïãéóìéêü äéáêïìéóôÞ çëåêôñïíéêÞò áëëçëïãñáößáò: ôï
	  <application>sendmail</application>.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="network-servers"/></emphasis></term>

      <listitem>
	<para>ÐáñÝ÷åé ëåðôïìåñåßò ïäçãßåò êáé ðáñáäåßãìáôá áñ÷åßùí ñýèìéóçò
	  ãéá íá ñõèìßóåôå ôï &os; íá åíåñãåß ùò äéêôõáêüò åîõðçñåôçôÞò
	  áñ÷åßùí, åîõðçñåôçôÞò ïíïìÜôùí ôïìÝá (DNS), åîõðçñåôçôÞò äéêôõáêþí
	  ðëçñïöïñéþí (NIS), ç åîõðçñåôçôÞò óõã÷ñïíéóìïý þñáò (NTP).</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="firewalls"/></emphasis></term>

      <listitem>
	<para>Åîçãåß ôçí öéëïóïößá ðïõ êñýâåôáé ðßóù áðü ôá firewalls (ôåß÷ç
	  ðñïóôáóßáò) ðïõ âáóßæïíôáé óå ëïãéóìéêü êáé ðáñÝ÷åé ëåðôïìåñåßò
	  ðëçñïöïñßåò ãéá ôéò ñõèìßóåéò ôùí äéáöüñùí firewalls ðïõ äéáôßèåíôáé
	  ãéá ôï &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="advanced-networking"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ðïëëÜ ðñï÷ùñçìÝíá èÝìáôá äéêôýùóçò,
	  óõìðåñéëáìâáíïìÝíïõ ôïõ äéáìïéñáóìïý ìéáò óýíäåóçò Internet ìå
	  Üëëïõò õðïëïãéóôÝò óôï ôïðéêü óáò äßêôõï (LAN), èÝìáôá äñïìïëüãçóçò
	  ãéá ðñï÷ùñçìÝíïõò, áóýñìáôç äéêôýùóç, &bluetooth;, ATM, IPv6 êáé
	  ðïëëÜ áêüìç.</para>
      </listitem>
    </varlistentry>

<!-- ÌÝñïò V - ÐáñáñôÞìáôá -->

    <varlistentry>
      <term><emphasis><xref linkend="mirrors"/></emphasis></term>

      <listitem>
	<para>ÐåñéÝ÷åé ëßóôá ìå äéÜöïñåò ðçãÝò ãéá íá áðïêôÞóåôå ôï &os; óå
	  CD-ROM Þ DVD, üðùò åðßóçò êáé äéÜöïñåò ôïðïèåóßåò óôï Internet áðü
	  üðïõ ìðïñåßôå íá êáôåâÜóåôå êáé íá åãêáôáóôÞóåôå ôï &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="bibliography"/></emphasis></term>

      <listitem>
	<para>Áõôü ôï âéâëßï áããßæåé ðïëëÜ äéáöïñåôéêÜ èÝìáôá ðïõ ìðïñåß íá
	  óáò êåíôñßóïõí ôï åíäéáöÝñïí ãéá ìéá ðéï ëåðôïìåñÞ åîåñåýíçóç.  Ç
	  âéâëéïãñáößá ôáîéíïìåß óå êáôçãïñßåò ðïëëÜ åîáéñåôéêÜ âéâëßá ôá
	  ïðïßá áíáöÝñïíôáé óôï êåßìåíï.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="eresources"/></emphasis></term>

      <listitem>
	<para>ÐåñéãñÜöåé ðïëëÜ öüñïõì ðïõ äéáôßèåíôáé óôïõò ÷ñÞóôåò ôïõ &os;,
	  þóôå íá èÝôïõí åñùôÞìáôá êáé íá óõììåôÝ÷ïõí óå ôå÷íéêÝò óõæçôÞóåéò
	  ãéá ôï &os;.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><emphasis><xref linkend="pgpkeys"/></emphasis></term>

      <listitem>
	<para>ÊáôáãñÜöåé ôá äáêôõëéêÜ áðïôõðþìáôá ôùí êëåéäéþí PGP áñêåôþí
	  ìåëþí ôçò ÏìÜäáò ÁíÜðôõîçò ôïõ &os;.</para>
      </listitem>
    </varlistentry>
  </variablelist>

  <bridgehead xml:id="preface-conv" renderas="sect1">ÓõìâÜóåéò ðïõ
    ÷ñçóéìïðïéïýíôáé óå áõôü ôï âéâëßï</bridgehead>

  <para>Óå ïëüêëçñï ôï âéâëßï, ÷ñçóéìïðïéïýíôáé êÜðïéåò ôõðïãñáöéêÝò
    óõìâÜóåéò þóôå ç ìïñöïðïßçóç ôïõ íá åßíáé óõíåðÞò êáé íá åßíáé ðéï
    åõáíÜãíùóôï:</para>

  <bridgehead xml:id="preface-conv-typographic" renderas="sect2">ÔõðïãñáöéêÝò
    ÓõìâÜóåéò</bridgehead>

  <variablelist>
    <varlistentry>
      <term><emphasis>ÐëÜãéá ãñáöÞ</emphasis></term>

      <listitem>
	<para> Ç <emphasis>ðëÜãéá</emphasis> ãñáììáôïóåéñÜ ÷ñçóéìïðïéåßôáé
	  ãéá ïíüìáôá áñ÷åßùí, URLs, êåßìåíï ìå Ýìöáóç êáé ãéá ÷ñÞóç
	  ðñùôïåìöáíéæüìåíùí ôå÷íéêþí üñùí.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><literal>ÃñáöÞ óôáèåñïý ðëÜôïõò</literal></term>

      <listitem>
	<para> Ç <literal>óôáèåñïý ðëÜôïõò</literal> ãñáììáôïóåéñÜ
	  ÷ñçóéìïðïéåßôáé ãéá ìçíýìáôá ëÜèïõò, åíôïëÝò, ìåôáâëçôÝò
	  ðåñéâÜëëïíôïò, ïíïìáóßåò ôùí ports, ïíüìáôá êåíôñéêþí
	  õðïëïãéóôþí, ïíüìáôá ÷ñçóôþí, ïíüìáôá ïìÜäùí, ïíüìáôá óõóêåõþí,
	  ìåôáâëçôÝò êáé áðïóðÜóìáôá êþäéêá.</para>
      </listitem>
    </varlistentry>

    <varlistentry>
      <term><application>¸íôïíç ãñáöÞ</application></term>

      <listitem>
	<para>Ç <application>Ýíôïíç</application> ãñáììáôïóåéñÜ
	  ÷ñçóéìïðïéåßôáé ãéá åöáñìïãÝò, åíôïëÝò êáé ðëÞêôñá.</para>
      </listitem>
    </varlistentry>
  </variablelist>

<!-- Var list -->
  <bridgehead xml:id="preface-conv-commands" renderas="sect2">Åßóïäïò
    ÄåäïìÝíùí áðü ôï ×ñÞóôç</bridgehead>

  <para>Ç ðëçêôñïëüãçóç óçìåéþíåôáé ìå <keycap>Ýíôïíç</keycap> ãñáöÞ þóôå íá
    îå÷ùñßæåé áðü ôï õðüëïéðï êåßìåíï.  Óõíäõáóìïß ðëÞêôñùí ðïõ ðñÝðåé íá
    ðéåóèïýí ôáõôü÷ñïíá óçìåéþíïíôáé ìå `<literal>+</literal>' ìåôáîý ôùí
    ðëÞêôñùí, üðùò:</para>

  <para><keycombo action="simul">
    <keycap>Ctrl</keycap>
    <keycap>Alt</keycap>
    <keycap>Del</keycap></keycombo></para>

  <para>Ôï ïðïßï óçìáßíåé ðùò ï ÷ñÞóôçò èá ðñÝðåé íá ðéÝóåé ôá ðëÞêôñá
    <keycap>Ctrl</keycap>, <keycap>Alt</keycap> êáé ôï ðëÞêôñï
    <keycap>Del</keycap> ôáõôü÷ñïíá.</para>

  <para>Óå ðåñßðôùóç ðïõ êÜðïéá ðëÞêôñá ðñÝðåé íá ðéåóèïýí ìå óõãêåêñéìÝíç
    óåéñÜ, èá åìöáíßæïíôáé ÷ùñéóìÝíá ìå êüììáôá:</para>

  <para><keycombo action="simul">
    <keycap>Ctrl</keycap>
    <keycap>X</keycap></keycombo>,
    <keycombo action="simul">
      <keycap>Ctrl</keycap>
      <keycap>S</keycap></keycombo></para>

  <para>Ôï ïðïßï óçìáßíåé ðùò ï ÷ñÞóôçò áíáìÝíåôáé íá ðéÝóåé ôá
    ðëÞêôñá <keycap>Ctrl</keycap> êáé <keycap>X</keycap> ôáõôü÷ñïíá
    êáé Ýðåéôá íá ðéÝóåé ôá ðëÞêôñá <keycap>Ctrl</keycap> êáé
    <keycap>S</keycap> ôáõôü÷ñïíá.</para>

<!-- How to type in keystrokes, etc.. -->
  <bridgehead xml:id="preface-conv-examples" renderas="sect2">Ðáñáäåßãìáôá</bridgehead>

  <para>Ôá ðáñáäåßãìáôá ðïõ îåêéíïýí ìå <filename>C:\&gt;</filename>
    õðïäçëþíïõí ìéá åíôïëÞ &ms-dos;.  ÁõôÝò ïé åíôïëÝò ìðïñïýí íá åêôåëïýíôáé
    áðü ôï ðáñÜèõñï <quote>ÃñáììÞò Åíôïëþí</quote> óå óýã÷ñïíï ðåñéâÜëëïí
    &microsoft.windows;, åêôüò áí áíáöÝñåôáé êÜôé äéáöïñåôéêü.</para>

  <screen><prompt>E:\&gt;</prompt> <userinput>tools\fdimage floppies\kern.flp A:</userinput></screen>

  <para>Ôá ðáñáäåßãìáôá ðïõ îåêéíïýí ìå &prompt.root; õðïäçëþíïõí ìéá åíôïëÞ
    ðïõ èá ðñÝðåé íá åêôåëåóôåß áðü ôïí õðåñ÷ñÞóôç (superuser) åíüò
    óõóôÞìáôïò &os;.  Ìðïñåßôå íá óõíäåèåßôå óáí ÷ñÞóôçò
    <systemitem class="username">root</systemitem> ãéá íá ðëçêôñïëïãÞóåôå
    ôçí åíôïëÞ, Þ íá óõíäåèåßôå óáí êáíïíéêüò ÷ñÞóôçò êáé íá
    ÷ñçóéìïðïéÞóåôå ôçí åíôïëÞ &man.su.1; þóôå íá áðïêôÞóåôå ðñïíüìéá
    õðåñ÷ñÞóôç.</para>

  <screen>&prompt.root; <userinput>dd if=kern.flp of=/dev/fd0</userinput></screen>

  <para>Ôá ðáñáäåßãìáôá ðïõ îåêéíïýí ìå &prompt.user; õðïäçëþíïõí ìéá åíôïëÞ
    ðïõ ðñÝðåé íá åêôåëåóôåß áðü Ýíá êáíïíéêü ÷ñÞóôç.  ×ñçóéìïðïéåßôáé ç
    óýíôáîç C-shell ãéá íá èÝóïõìå ìåôáâëçôÝò ðåñéâÜëëïíôïò êáé Üëëåò åíôïëÝò
    êåëýöïõò, åêôüò áí áíáöÝñåôáé êÜôé äéáöïñåôéêü.</para>

  <screen>&prompt.user; <userinput>top</userinput></screen>

  <bridgehead xml:id="preface-acknowledgements" renderas="sect1">Åõ÷áñéóôßåò</bridgehead>

  <para>Ôï âéâëßï ðïõ êñáôÜôå, ðáñïõóéÜæåé ôéò ðñïóðÜèåéåò ðïëëþí åêáôïíôÜäùí
    áíèñþðùí áðü üëï ôïí êüóìï.  Åßôå ìáò åíçìÝñùóáí ãéá ôõðïãñáöéêÜ ëÜèç,
    åßôå ìáò Ýóôåéëáí ïëüêëçñá êåöÜëáéá, ç óõìâïëÞ üëùí Þôáí ÷ñÞóéìç.</para>

  <para>ÌåñéêÝò åôáéñåßåò õðïóôÞñéîáí ôçí áíÜðôõîç áõôïý ôïõ åããñÜöïõ
    ìéóèþíïíôáò óõíôÜêôåò íá åñãÜæïíôáé óå ðëÞñç áðáó÷üëçóç, ðëçñþíïíôáò ãéá
    ôçí Ýêäïóç, êôë.  Åéäéêüôåñá, ç BSDi (ç ïðïßá áñãüôåñá áðïêôÞèçêå áðü ôçí
    <link xlink:href="http://www.windriver.com">Wind River Systems</link>)
    ìßóèùóå ìÝëç ôïõ &os; Documentation Project íá åñãÜæïíôáé óå ðëÞñç
    áðáó÷üëçóç ãéá ôçí âåëôßùóç ôïõ âéâëßïõ, ïäçãþíôáò óôçí ðñþôç Ýíôõðç
    Ýêäïóç óôá áããëéêÜ ôïí ÌÜñôéï ôïõ 2000 (ISBN 1-57176-241-8).  Ç åôáéñåßá
    Wind River Systems ìßóèùóå ôüôå ìåñéêïýò åðéðñüóèåôïõò óõíôÜêôåò þóôå
    íá êÜíåé âåëôéþóåéò óôçí äïìÞ ôçò Ýíôõðçò Ýêäïóçò êáé íá ðñïóèÝóåé êÜðïéá
    íÝá êåöÜëáéá.  Ç áðïêïñýöùóç áõôÞò ôçò åñãáóßáò Þôáí ç ðáñïõóßáóç
    ôçò äåýôåñçò Ýíôõðçò Ýêäïóçò, ôïí ÍïÝìâñéï ôïõ 2001 (ISBN 1-57176-303-1).
    1-57176-303-1).  Ôï 2003-2004, ç <link
      xlink:href="http://www.freebsdmall.com">&os; Mall, Inc</link>, ìßóèùóå
    áñêåôïýò óõíåñãÜôåò íá âåëôéþóïõí ôï Åã÷åéñßäéï ×ñÞóçò ðñïò åôïéìáóßá
    ôçò ôñßôçò Ýíôõðçò Ýêäïóçò.</para>
</preface>