1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.4/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 dhcpcd-download-http "http://download.berlios.de/dhcpcd/dhcpcd-&dhcpcd-version;.tar.bz2">
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8 | <!ENTITY dhcpcd-download-ftp "ftp://ftp.osuosl.org/pub/gentoo/distfiles/dhcpcd-&dhcpcd-version;.tar.bz2">
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9 | <!ENTITY dhcpcd-md5sum "ec91c33b6d9cb46a42f9564e573fd249">
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10 | <!ENTITY dhcpcd-size "123 KB">
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11 | <!ENTITY dhcpcd-buildsize "1.2 MB">
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12 | <!ENTITY dhcpcd-time "less than 0.1 SBU">
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13 | ]>
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14 |
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15 | <sect1 id="dhcpcd" xreflabel="dhcpcd-&dhcpcd-version;">
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16 | <?dbhtml filename="dhcpcd.html"?>
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17 |
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18 | <sect1info>
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19 | <othername>$LastChangedBy$</othername>
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20 | <date>$Date$</date>
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21 | </sect1info>
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22 |
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23 | <title>Dhcpcd-&dhcpcd-version;</title>
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24 |
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25 | <indexterm zone="dhcpcd">
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26 | <primary sortas="a-Dhcpcd">Dhcpcd</primary>
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27 | </indexterm>
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28 |
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29 | <sect2 role="package">
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30 | <title>Introduction to Dhcpcd</title>
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31 |
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32 | <para><application>dhcpcd</application>is an implementation of the
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33 | DHCP client specified in RFC2131. This is useful for connecting
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34 | your computer to a network which uses DHCP to assign network
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35 | addresses.</para>
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36 |
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37 | <bridgehead renderas="sect3">Package Information</bridgehead>
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38 | <itemizedlist spacing="compact">
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39 | <listitem>
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40 | <para>Download (HTTP): <ulink url="&dhcpcd-download-http;"/></para>
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41 | </listitem>
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42 | <listitem>
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43 | <para>Download (FTP): <ulink url="&dhcpcd-download-ftp;"/></para>
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44 | </listitem>
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45 | <listitem>
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46 | <para>Download MD5 sum: &dhcpcd-md5sum;</para>
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47 | </listitem>
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48 | <listitem>
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49 | <para>Download size: &dhcpcd-size;</para>
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50 | </listitem>
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51 | <listitem>
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52 | <para>Estimated disk space required: &dhcpcd-buildsize;</para>
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53 | </listitem>
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54 | <listitem>
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55 | <para>Estimated build time: &dhcpcd-time;</para>
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56 | </listitem>
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57 | </itemizedlist>
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58 |
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59 | <para condition="html" role="usernotes">User Notes:
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60 | <ulink url="&blfs-wiki;/dhcpcd"/></para>
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61 |
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62 | </sect2>
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63 |
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64 | <sect2 role="installation">
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65 | <title>Installation of Dhcpcd</title>
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66 |
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67 | <para>Install <application>dhcpcd</application> by running the following
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68 | commands:</para>
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69 |
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70 | <screen><userinput>./configure --prefix="" --mandir=/usr/share/man &&
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71 | make</userinput></screen>
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72 |
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73 | <para>This package does not come with a test suite.</para>
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74 |
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75 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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76 |
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77 | <screen role="root"><userinput>make install &&
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78 | chmod -v 754 /etc/dhcpc/dhcpcd.exe</userinput></screen>
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79 |
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80 | </sect2>
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81 |
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82 | <sect2 role="commands">
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83 | <title>Command Explanations</title>
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84 |
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85 | <para><parameter>--prefix=""</parameter>: There may be a good reason for
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86 | abandoning the normal BLFS convention of using
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87 | <parameter>--prefix=/usr</parameter> here. If you are installing
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88 | DHCP, it is likely that it is
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89 | required during the boot process and
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90 | <filename class="directory">/usr</filename> may be network mounted, in which
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91 | case <command>dhcpcd</command> wouldn't be available due to being on the
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92 | network! Therefore, depending on your situation, you may want it to be
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93 | installed in <filename class="directory">/sbin</filename> or
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94 | <filename class="directory">/usr/sbin</filename>. This command installs to
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95 | <filename class="directory">/sbin</filename>.</para>
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96 |
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97 | </sect2>
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98 |
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99 | <sect2 role="configuration">
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100 | <title>Configuring Dhcpcd</title>
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101 |
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102 | <sect3 id="dhcpcd-config">
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103 | <title>Config Files</title>
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104 |
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105 | <para><filename>/etc/dhcpc/dhcpcd.exe</filename></para>
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106 |
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107 | <indexterm zone="dhcpcd dhcpcd-config">
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108 | <primary sortas="e-etc-dhcpc">/etc/dhcpc/dhcpcd.exe</primary>
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109 | </indexterm>
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110 |
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111 | </sect3>
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112 |
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113 | <sect3 id="dhcpcd-init">
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114 | <title>Configuration Information</title>
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115 |
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116 | <para>To configure <command>dhcpcd</command>, you need to first install
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117 | the network service script,
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118 | <filename>/etc/sysconfig/network-devices/services/dhcpcd</filename>
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119 | included in the <xref linkend="bootscripts"/> package
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120 | (as user <systemitem class="username">root</systemitem>):</para>
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121 |
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122 | <indexterm zone="dhcpcd dhcpcd-init">
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123 | <primary sortas="f-dhcpcd">dhcpcd (service script)</primary>
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124 | </indexterm>
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125 |
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126 | <screen role='root'><userinput>make install-service-dhcpcd</userinput></screen>
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127 |
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128 | <para>Whenever <command>dhcpcd</command> configures or shuts down
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129 | a network interface, it executes the script
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130 | <filename>/etc/dhcpc/dhcpcd.exe</filename>. This script can be
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131 | customized to perform additional actions for the network interface.
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132 | See the man page of <command>dhcpcd</command> for more details.</para>
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133 |
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134 | <para id="dhcpcd-config2">Finally, as the <systemitem
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135 | class="username">root</systemitem> user create the
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136 | <filename>/etc/sysconfig/network-devices/ifconfig.eth0/dhcpcd</filename>
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137 | configuration file using the following commands. Adjust appropriately
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138 | for additional interfaces:</para>
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139 |
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140 | <indexterm zone="dhcpcd dhcpcd-config2">
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141 | <primary sortas="e-etc-sysconfig-dhcpcd">/etc/sysconfig/.../dhcpcd</primary>
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142 | </indexterm>
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143 |
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144 | <screen role='root'><userinput>install -v -d /etc/sysconfig/network-devices/ifconfig.eth0 &&
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145 | cat > /etc/sysconfig/network-devices/ifconfig.eth0/dhcpcd << "EOF"
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146 | <literal>ONBOOT="yes"
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147 | SERVICE="dhcpcd"
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148 | DHCP_START="<replaceable><insert appropriate start options here></replaceable>"
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149 | DHCP_STOP="-k <replaceable><insert additional stop options here></replaceable>"
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150 |
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151 | # Set PRINTIP="yes" to have the script print
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152 | # the DHCP assigned IP address
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153 | PRINTIP="no"
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154 |
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155 | # Set PRINTALL="yes" to print the DHCP assigned values for
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156 | # IP, SM, DG, and 1st NS. This requires PRINTIP="yes".
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157 | PRINTALL="no"</literal>
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158 | EOF</userinput></screen>
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159 |
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160 | <para>For more information on the appropriate <envar>DHCP_START</envar> and
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161 | <envar>DHCP_STOP</envar> values, examine the man page for
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162 | <command>dhcpcd</command>.</para>
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163 |
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164 | <note>
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165 | <para id="dhcpcd-config3">The default behavior of
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166 | <command>dhcpcd</command> is to overwrite (after making backup copies)
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167 | <filename>/etc/resolv.conf</filename>, <filename>/etc/yp.conf</filename> and
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168 | <filename>/etc/ntp.conf</filename> with new files containing information from
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169 | the DHCP server. If this is undesirable, review the
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170 | <command>dhcpcd</command> man page for switches to add to the
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171 | <envar>DHCP_START</envar> value.</para>
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172 | </note>
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173 |
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174 | <indexterm zone="dhcpcd dhcpcd-config3">
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175 | <primary sortas="e-etc-resolv.conf">/etc/resolv.conf</primary>
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176 | </indexterm>
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177 |
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178 | <indexterm zone="dhcpcd dhcpcd-config3">
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179 | <primary sortas="e-etc-yp.conf">/etc/yp.conf</primary>
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180 | </indexterm>
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181 |
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182 | <indexterm zone="dhcpcd dhcpcd-config3">
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183 | <primary sortas="e-etc-ntp.conf">/etc/ntp.conf</primary>
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184 | </indexterm>
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185 |
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186 | </sect3>
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187 |
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188 | </sect2>
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189 |
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190 | <sect2 role="content">
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191 | <title>Contents</title>
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192 |
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193 | <segmentedlist>
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194 | <segtitle>Installed Program</segtitle>
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195 | <segtitle>Installed Libraries</segtitle>
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196 | <segtitle>Installed Directory</segtitle>
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197 |
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198 | <seglistitem>
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199 | <seg>dhcpcd</seg>
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200 | <seg>None</seg>
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201 | <seg>/etc/dhcpc and /var/lib/dhcpc</seg>
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202 | </seglistitem>
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203 | </segmentedlist>
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204 |
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205 | <variablelist>
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206 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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207 | <?dbfo list-presentation="list"?>
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208 | <?dbhtml list-presentation="table"?>
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209 |
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210 | <varlistentry id="dhcpcd-prog">
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211 | <term><command>dhcpcd</command></term>
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212 | <listitem>
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213 | <para>is an implementation of the DHCP client specified
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214 | in RFC2131 (when -r option is not specified) and RFC1541
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215 | (when -r option is specified).</para>
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216 | <indexterm zone="dhcpcd dhcpcd-prog">
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217 | <primary sortas="b-dhcpcd">dhcpcd</primary>
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218 | </indexterm>
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219 | </listitem>
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220 | </varlistentry>
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221 |
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222 | </variablelist>
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223 |
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224 | </sect2>
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225 |
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226 | </sect1>
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