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 fcron-download-http "http://fcron.free.fr/archives/fcron-&fcron-version;.src.tar.gz">
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8 | <!ENTITY fcron-download-ftp "ftp://ftp.seul.org/pub/fcron/fcron-&fcron-version;.src.tar.gz">
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9 | <!ENTITY fcron-size "390 KB">
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10 | <!ENTITY fcron-buildsize "3.4 MB">
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11 | <!ENTITY fcron-time "0.10 SBU">
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12 |
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13 | ]>
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14 |
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15 | <sect1 id="fcron" xreflabel="Fcron-&fcron-version;">
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16 | <sect1info>
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17 | <othername>$LastChangedBy$</othername>
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18 | <date>$Date$</date>
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19 | </sect1info>
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20 | <?dbhtml filename="fcron.html"?>
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21 | <title>Fcron-&fcron-version;</title>
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22 |
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23 | <sect2>
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24 | <title>Introduction to <application>Fcron</application></title>
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25 |
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26 | <para>The <application>Fcron</application> package contains a periodical
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27 | command scheduler which aims at replacing <application>Vixie
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28 | Cron</application>.</para>
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29 |
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30 | <sect3><title>Package information</title>
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31 | <itemizedlist spacing='compact'>
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32 | <listitem><para>Download (HTTP): <ulink url="&fcron-download-http;"/></para></listitem>
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33 | <listitem><para>Download (FTP): <ulink url="&fcron-download-ftp;"/></para></listitem>
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34 | <listitem><para>Download size: &fcron-size;</para></listitem>
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35 | <listitem><para>Estimated disk space required: &fcron-buildsize;</para></listitem>
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36 | <listitem><para>Estimated build time: &fcron-time;</para></listitem></itemizedlist>
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37 | </sect3>
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38 |
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39 | <sect3><title><application>Fcron</application> dependencies</title>
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40 | <sect4><title>Optional</title>
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41 | <para>
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42 | <ulink url="../server/mail.html">MTA</ulink>,
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43 | <xref linkend="Linux_PAM"/>,
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44 | <ulink url="http://www.nsa.gov/selinux/">SELinux</ulink>,
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45 | <xref linkend="docbook-utils"/> and
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46 | <ulink url="../postlfs/editors.html">a text editor</ulink> (default is
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47 | <xref linkend="postlfs-editors-vim"/>)
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48 | </para></sect4>
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49 | </sect3>
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50 |
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51 | </sect2>
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52 |
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53 | <sect2>
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54 | <title>Installation of <application>Fcron</application></title>
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55 |
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56 | <para><application>Fcron</application> uses the cron facility of
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57 | <command>syslog</command>
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58 | to log all messages. Since <acronym>LFS</acronym> does not set up this
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59 | facility in <filename>/etc/syslog.conf</filename>, it needs to be done
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60 | prior to installing <application>Fcron</application>. This command will append
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61 | the necessary line to the current <filename>/etc/syslog.conf</filename>:</para>
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62 | <screen><userinput><command>cat >> /etc/syslog.conf << "EOF"
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63 | # Begin fcron addition to /etc/syslog.conf
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64 |
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65 | cron.* -/var/log/cron.log
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66 |
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67 | # End fcron addition
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68 | EOF</command></userinput></screen>
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69 |
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70 | <para>The configuration file has been modified, so reloading the
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71 | <command>sysklogd</command> daemon will activate the changes.</para>
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72 |
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73 | <screen><userinput><command>/etc/rc.d/init.d/sysklogd reload</command></userinput></screen>
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74 |
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75 | <para>For security reasons, we need to create an unprivileged user and
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76 | group for <application>fcron</application>:</para>
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77 |
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78 | <screen><userinput><command>groupadd fcron &&
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79 | useradd -d /dev/null -g fcron -s /bin/false fcron</command></userinput></screen>
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80 |
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81 | <para>Install <application>Fcron</application> by running the following commands:</para>
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82 |
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83 | <screen><userinput><command>./configure --without-sendmail --with-answer-all=no &&
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84 | make &&
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85 | make install</command></userinput></screen>
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86 |
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87 | </sect2>
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88 |
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89 | <sect2>
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90 | <title>Command explanations</title>
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91 |
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92 | <para><option>--without-sendmail</option>: <application>Fcron</application>
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93 | will use an installed <acronym>MTA</acronym> to email you the results of the
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94 | <command>fcron</command> script. If you wish to utilize this feature, change
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95 | the switch to <parameter>--with-sendmail=<replaceable>[path to your
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96 | MTA]</replaceable></parameter>.</para>
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97 |
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98 | <para><parameter>--with-answer-all=no</parameter>: After the files are
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99 | installed, the <command>make install</command> script enters into a
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100 | configuration routine. The first test will be whether to install a boot script in the <filename class="directory">/etc/rc.d/init.d</filename> directory with
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101 | the appropriate symbolic links in run levels 2, 3, 4, and 5. The second is to
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102 | stop any current fcron processes and start a new one. Since this is probably
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103 | your first install and we want a boot script based upon the
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104 | <acronym>BLFS</acronym> template, we answer 'n' to both tests.</para>
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105 |
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106 | </sect2>
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107 |
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108 | <sect2>
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109 | <title>Configuring <application>Fcron</application></title>
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110 |
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111 | <sect3><title>Config files</title>
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112 |
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113 | <para><filename>/etc/fcron.conf</filename>,
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114 | <filename>/etc/fcron.allow</filename>,
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115 | <filename>/etc/fcron.deny</filename></para>
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116 |
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117 | </sect3>
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118 |
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119 | <sect3><title>Configuration Information</title>
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120 |
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121 | <para>There are no required changes in any of the config files.
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122 | Configuration information can be found in the man page for
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123 | <filename>fcron.conf</filename>.</para>
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124 |
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125 | <para><command>fcron</command> scripts are written using <command>fcrontab</command>.
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126 | Refer to the fcrontab man page for proper parameters to address your situation.</para>
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127 |
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128 | <para>Install the <filename>/etc/rc.d/init.d/fcron</filename>
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129 | init script from the <xref linkend="intro-important-bootscripts"/> package.</para>
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130 |
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131 | <screen><userinput><command>make install-fcron</command></userinput></screen>
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132 |
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133 | </sect3>
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134 |
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135 | </sect2>
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136 |
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137 | <sect2>
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138 | <title>Contents</title>
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139 |
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140 | <para>The <application>Fcron</application> package contains
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141 | <command>fcron</command>, <command>fcrontab</command>, <command>fcronsighup
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142 | </command> and <command>fcrondyn.</command></para>
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143 |
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144 | </sect2>
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145 |
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146 | <sect2><title>Description</title>
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147 |
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148 | <sect3><title>fcron</title>
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149 | <para><command>fcron</command> is the scheduling daemon.
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150 | </para></sect3>
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151 |
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152 | <sect3><title>fcrontab</title>
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153 | <para><command>fcrontab</command> is the program used to install, edit, list
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154 | and remove the tables used by <command>fcron</command>.</para></sect3>
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155 |
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156 | <sect3><title>fcronsighup</title>
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157 | <para><command>fcronsighup</command> instructs <command>fcron</command> to
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158 | reread the fcron tables.</para></sect3>
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159 |
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160 | <sect3><title>fcrondyn</title>
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161 | <para><command>fcrondyn</command> is a user tool intended to interact with a
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162 | running <command>fcron</command> daemon.</para></sect3>
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163 |
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164 | </sect2>
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165 |
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166 | </sect1>
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