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Tagged traceroute.xml
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3878 af4574ff-66df-0310-9fd7-8a98e5e911e0
This commit is contained in:
Manuel Canales Esparcia
parent
c7ac14c90f
commit
2f6a5b0e84
@ -13,126 +13,142 @@
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]>
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<sect1 id="traceroute" xreflabel="Traceroute-&traceroute-version;">
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<?dbhtml filename="traceroute.html"?>
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<title>Traceroute-&traceroute-version;</title>
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<indexterm zone="traceroute">
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<primary sortas="a-Traceroute">Traceroute</primary></indexterm>
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<?dbhtml filename="traceroute.html"?>
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<title>Traceroute-&traceroute-version;</title>
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<indexterm zone="traceroute">
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<primary sortas="a-Traceroute">Traceroute</primary>
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</indexterm>
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<sect2>
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<title>Introduction to <application>Traceroute</application></title>
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<sect2 role="package">
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<title>Introduction to Traceroute</title>
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<para>The <application>Traceroute</application> package contains a program
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which is used to display the network route that packets take to reach a
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specified host. This is a standard network troubleshooting tool. If you find
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yourself unable to connect to another system, traceroute can help pinpoint
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the problem.</para>
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Download (HTTP): <ulink url="&traceroute-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&traceroute-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &traceroute-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &traceroute-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &traceroute-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &traceroute-time;</para>
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</listitem>
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</itemizedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Traceroute</title>
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<para>The <application>Traceroute</application> package contains a program
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which is used to display the network route that packets take to reach a
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specified host. This is a standard network troubleshooting tool. If you find
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yourself unable to connect to another system, traceroute can help pinpoint
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the problem.</para>
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<para>Install <application>Traceroute</application> by running the following
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commands:</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Download (HTTP): <ulink
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url="&traceroute-download-http;"/></para></listitem>
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<listitem><para>Download (FTP): <ulink
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url="&traceroute-download-ftp;"/></para></listitem>
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<listitem><para>Download MD5 sum: &traceroute-md5sum;</para></listitem>
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<listitem><para>Download size: &traceroute-size;</para></listitem>
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<listitem><para>Estimated disk space required:
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&traceroute-buildsize;</para></listitem>
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<listitem><para>Estimated build time:
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&traceroute-time;</para></listitem></itemizedlist>
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</sect3>
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</sect2>
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<sect2>
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<title>Installation of <application>Traceroute</application></title>
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<para>Install <application>Traceroute</application> by running the following
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commands:</para>
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<screen><userinput><command>sed -i -e 's/-o bin/-o root/' Makefile.in &&
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<screen><userinput>sed -i -e 's/-o bin/-o root/' Makefile.in &&
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./configure --prefix=/usr &&
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make</command></userinput></screen>
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make</userinput></screen>
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<para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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<para>Now, as the root user:</para>
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<screen role='root'><userinput>make install &&
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make install-man</userinput></screen>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<para><command>sed 's/-o bin/-o root/' Makefile.in</command>:
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Adjusts the <filename>Makefile</filename> so that the program is installed
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with user root instead of user bin (which doesn't exist on a default
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LFS system).</para>
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<para><command>make install</command>: Installs <command>traceroute</command>
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with SUID set to <systemitem class="username">root</systemitem> in the
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<filename class='directory'>/usr/sbin</filename> directory. This makes it
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possible for all users to execute <command>traceroute</command>. For absolute
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security, turn off the SUID bit in <command>traceroute</command>'s file permissions
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with the command:</para>
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<screen role='root'><userinput>chmod 0755 /usr/sbin/traceroute</userinput></screen>
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<para>The risk is that if a security problem such as a buffer overflow was
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ever found in the <application>Traceroute</application> code, a regular user
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on your system could gain <systemitem class="username">root</systemitem>
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access if the program is SUID <systemitem class="username">root</systemitem>.
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Of course, removing the SUID permission also makes it impossible for users other
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than <systemitem class="username">root</systemitem> to utilize
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<command>traceroute</command>, so decide what's right for
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your individual situation.</para>
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<para>The goal of BLFS is to be completely FHS compliant, so if you do leave the
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<command>traceroute</command> binary SUID <systemitem
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class="username">root</systemitem>, then you should move
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<filename>traceroute</filename> to <filename class='directory'>/usr/bin</filename>
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with the following command:</para>
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<screen role='root'><userinput>mv /usr/sbin/traceroute /usr/bin</userinput></screen>
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<para>This ensures that the binary is in the path for non-root users.</para>
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</sect2>
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<sect2 role="content">
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<title>Contents</title>
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<screen><userinput role='root'><command>make install &&
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make install-man</command></userinput></screen>
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<segmentedlist>
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<segtitle>Installed Program</segtitle>
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<segtitle>Installed Libraries</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>traceroute</seg>
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<seg>None</seg>
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<seg>None</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="traceroute-prog">
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<term><command>traceroute</command></term>
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<listitem>
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<para>does basically what it says: it traces the route your packets
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take from the host you are working on to another host on a network, showing
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all the intermediate hops (gateways) along the way.</para>
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<indexterm zone="traceroute traceroute-prog">
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<primary sortas="b-traceroute">traceroute</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><command>sed 's/-o bin/-o root/' Makefile.in</command>:
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Adjusts the <filename>Makefile</filename> so that the program is installed
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with user root instead of user bin (which doesn't exist on a default
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<acronym>LFS</acronym> system).</para>
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<para><command>make install</command>: Installs <command>traceroute</command>
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with <acronym>SUID</acronym> set to root in the
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<filename class='directory'>/usr/sbin</filename> directory. This makes it
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possible for all users to execute <command>traceroute</command>. For absolute
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security, turn off the <acronym>SUID</acronym> bit in
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<command>traceroute</command>'s file permissions with the command:</para>
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<screen><userinput role='root'><command>chmod 0755 /usr/sbin/traceroute</command></userinput></screen>
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<para>The risk is that if a security problem such as a buffer overflow was
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ever found in the <application>Traceroute</application> code, a regular user
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on your system could gain root access if the program is
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<acronym>SUID</acronym> root. Of course, removing
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the <acronym>SUID</acronym> permission also makes it impossible for users other
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than root to utilize <command>traceroute</command>, so decide what's right for
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your individual situation.</para>
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<para>The goal of <acronym>BLFS</acronym> is to be completely
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<acronym>FHS</acronym> compliant, so if you do leave the
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<command>traceroute</command> binary <acronym>SUID</acronym> root, then you
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should move <filename>traceroute</filename> to
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<filename class='directory'>/usr/bin</filename> with the following command:
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</para>
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<screen><userinput role='root'><command>mv /usr/sbin/traceroute /usr/bin</command></userinput></screen>
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<para>This ensures that the binary is in the path for non-root users.</para>
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</sect2>
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<sect2>
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<title>Contents</title>
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<segmentedlist>
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<segtitle>Installed Program</segtitle>
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<segtitle>Installed Libraries</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>traceroute</seg>
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<seg>None</seg>
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<seg>None</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<varlistentry id="traceroute-prog">
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<term><command>traceroute</command></term>
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<listitem><para>does basically what it says: it traces the route your packets
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take from the host you are working on to another host on a network, showing
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all the intermediate hops (gateways) along the way.</para>
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<indexterm zone="traceroute traceroute-prog">
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<primary sortas="b-traceroute">traceroute</primary>
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</indexterm></listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect2>
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</sect1>
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