mirror of
https://github.com/Zeckmathederg/glfs.git
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3bba7e231d
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2302 af4574ff-66df-0310-9fd7-8a98e5e911e0
110 lines
4.2 KiB
XML
110 lines
4.2 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY traceroute-download-http "http://gd.tuwien.ac.at/platform/sun/packages/solaris/freeware/SOURCES/traceroute-&traceroute-version;.tar.gz">
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<!ENTITY traceroute-download-ftp "ftp://ftp.ee.lbl.gov/traceroute-&traceroute-version;.tar.gz">
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<!ENTITY traceroute-size "73 KB">
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<!ENTITY traceroute-buildsize "464 KB">
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<!ENTITY traceroute-time "0.02 SBU">
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]>
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<sect1 id="traceroute" xreflabel="Traceroute-&traceroute-version;">
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<?dbhtml filename="traceroute.html"?>
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<title>Traceroute-&traceroute-version;</title>
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<sect2>
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<title>Introduction to <application>Traceroute</application></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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<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 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>mv Makefile.in Makefile.in.bak &&
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sed 's/-o bin/-o root/' Makefile.in.bak > Makefile.in &&
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./configure --prefix=/usr &&
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make &&
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make install &&
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make install-man</command></userinput></screen>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><screen><command>sed 's/-o bin/-o root/'...</command></screen>
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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 <filename>/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 <command>traceroute</command>'s file
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permissions with the command:</para>
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<screen><command>chmod 0755 /usr/sbin/traceroute</command></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 than
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root to utilize <command>traceroute</command>, so decide what's right for your
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individual situation.</para>
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<para>Our aim is to be completely <acronym>FHS</acronym> compliant, so if
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you do leave the <command>traceroute</command> binary
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<acronym>SUID</acronym> root, then you
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should move <filename>traceroute</filename> to <filename>/usr/bin</filename>
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with the following command:</para>
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<screen><command>mv /usr/sbin/traceroute /usr/bin</command></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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<para>The <application>Traceroute</application> package contains <userinput>traceroute</userinput>.</para>
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</sect2>
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<sect2><title>Description</title>
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<sect3><title>traceroute</title>
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<para><command>traceroute</command> does basically what it says: it traces the
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route your packets take from the host you are working on to another host on a
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network, showing all the intermediate steps (gateways) along the way.</para>
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</sect3>
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</sect2>
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</sect1>
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