1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!ENTITY traceroute-download-http "http://gd.tuwien.ac.at/platform/sun/packages/solaris/freeware/SOURCES/traceroute-&traceroute-version;.tar.gz">
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8 | <!ENTITY traceroute-download-ftp "ftp://ftp.ee.lbl.gov/traceroute-&traceroute-version;.tar.gz">
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9 | <!ENTITY traceroute-size "74 KB">
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10 | <!ENTITY traceroute-buildsize "540 KB">
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11 | <!ENTITY traceroute-time "0.01 SBU">
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12 | ]>
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13 |
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14 | <sect1 id="traceroute" xreflabel="Traceroute-&traceroute-version;">
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15 | <sect1info>
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16 | <othername>$LastChangedBy$</othername>
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17 | <date>$Date$</date>
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18 | </sect1info>
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19 | <?dbhtml filename="traceroute.html"?>
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20 | <title>Traceroute-&traceroute-version;</title>
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21 |
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22 | <sect2>
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23 | <title>Introduction to <application>Traceroute</application></title>
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24 |
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25 | <para>The <application>Traceroute</application> package contains a program
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26 | which is used to display the network route that packets take to reach a
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27 | specified host. This is a standard network troubleshooting tool. If you find
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28 | yourself unable to connect to another system, traceroute can help pinpoint
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29 | the problem.</para>
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30 |
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31 | <sect3><title>Package information</title>
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32 | <itemizedlist spacing='compact'>
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33 | <listitem><para>Download (HTTP): <ulink
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34 | url="&traceroute-download-http;"/></para></listitem>
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35 | <listitem><para>Download (FTP): <ulink
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36 | url="&traceroute-download-ftp;"/></para></listitem>
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37 | <listitem><para>Download size: &traceroute-size;</para></listitem>
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38 | <listitem><para>Estimated disk space required:
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39 | &traceroute-buildsize;</para></listitem>
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40 | <listitem><para>Estimated build time:
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41 | &traceroute-time;</para></listitem></itemizedlist>
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42 | </sect3>
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43 |
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44 | </sect2>
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45 |
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46 | <sect2>
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47 | <title>Installation of <application>Traceroute</application></title>
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48 |
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49 | <para>Install <application>Traceroute</application> by running the following
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50 | commands:</para>
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51 |
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52 | <screen><userinput><command>sed -i -e 's/-o bin/-o root/' Makefile.in &&
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53 | ./configure --prefix=/usr &&
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54 | make &&
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55 | make install &&
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56 | make install-man</command></userinput></screen>
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57 |
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58 | </sect2>
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59 |
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60 | <sect2>
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61 | <title>Command explanations</title>
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62 |
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63 | <para><command>sed 's/-o bin/-o root/' Makefile.in</command>:
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64 | Adjusts the <filename>Makefile</filename> so that the program is installed
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65 | with user root instead of user bin (which doesn't exist on a default
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66 | <acronym>LFS</acronym> system).</para>
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67 |
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68 | <para><command>make install</command>: Installs <command>traceroute</command>
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69 | with <acronym>SUID</acronym> set to root in the
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70 | <filename class='directory'>/usr/sbin</filename> directory. This makes it
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71 | possible for all users to execute <command>traceroute</command>. For absolute
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72 | security, turn off the <acronym>SUID</acronym> bit in
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73 | <command>traceroute</command>'s file permissions with the command:</para>
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74 |
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75 | <screen><command>chmod 0755 /usr/sbin/traceroute</command></screen>
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76 |
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77 | <para>The risk is that if a security problem such as a buffer overflow was
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78 | ever found in the <application>Traceroute</application> code, a regular user
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79 | on your system could gain root access if the program is
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80 | <acronym>SUID</acronym> root. Of course, removing
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81 | the <acronym>SUID</acronym> permission also makes it impossible for users other
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82 | than root to utilize <command>traceroute</command>, so decide what's right for
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83 | your individual situation.</para>
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84 |
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85 | <para>The goal of <acronym>BLFS</acronym> is to be completely
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86 | <acronym>FHS</acronym> compliant, so if you do leave the
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87 | <command>traceroute</command> binary <acronym>SUID</acronym> root, then you
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88 | should move <filename>traceroute</filename> to
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89 | <filename class='directory'>/usr/bin</filename> with the following command:
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90 | </para>
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91 |
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92 | <screen><command>mv /usr/sbin/traceroute /usr/bin</command></screen>
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93 |
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94 | <para>This ensures that the binary is in the path for non-root users.</para>
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95 |
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96 | </sect2>
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97 |
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98 | <sect2>
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99 | <title>Contents</title>
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100 |
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101 | <para>The <application>Traceroute</application> package contains
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102 | <command>traceroute</command>.</para>
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103 |
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104 | </sect2>
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105 |
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106 | <sect2><title>Description</title>
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107 |
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108 | <sect3><title>traceroute</title>
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109 | <para><command>traceroute</command> does basically what it says: it traces the
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110 | route your packets take from the host you are working on to another host on a
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111 | network, showing all the intermediate hops (gateways) along the way.</para>
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112 | </sect3>
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113 |
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114 | </sect2>
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115 |
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116 | </sect1>
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117 |
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