1 | <sect2>
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2 | <title>Configuring postfix</title>
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3 |
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4 | <sect3><title>Config files</title>
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5 | <para><userinput>/etc/aliases, /etc/postfix/main.cf</userinput> and <userinput>/etc/postfix/master.cf</userinput></para>
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6 | </sect3>
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7 |
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8 | <sect3><title>Configuration Information</title>
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9 |
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10 | <para><screen><userinput>cat > /etc/aliases << "EOF"</userinput>
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11 | # Begin /etc/aliases
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12 |
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13 | MAILER-DAEMON: postmaster
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14 | postmaster: root
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15 |
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16 | root: LOGIN
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17 | # End /etc/aliases
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18 | <userinput>EOF</userinput></screen></para>
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19 |
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20 | <para>The /etc/aliases file that was just created, the main.cf and the
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21 | master.cf must be personalized for your system. The aliases file needs your
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22 | non-root login identity so mail addressed to root can be forwarded to
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23 | you at the user level. The main.cf file needs your fully qualified
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24 | hostname. The master.cf needs to be modified to prevent your machine from
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25 | becoming a relay for unauthorized entities. All of these edits can be done
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26 | with sed commands entered into the console with appropriate substitutions of
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27 | your non-root login name for [user] and your fully qualified hostname for
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28 | [localhost.localdomain]. These edits will create a single host mail system,
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29 | other edits are necessary to perform the many other functions available.
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30 | You will find the main.cf file is self documenting, so load it into your editor to make the changes you need for your situation.</para>
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31 |
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32 | <para><screen><userinput>cp /etc/aliases /etc/aliases.bak
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33 | cp /etc/postfix/main.cf /etc/postfix/main.cf.bak
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34 | cp /etc/postfix/master.cf /etc/postfix/master.cf.bak
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35 | sed "s/LOGIN/[user]/" /etc/aliases.bak > /etc/aliases
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36 | sed "s/#myhostname = host.domain.tld/myhostname = \
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37 | [localhost.localdomain]/" \
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38 | /etc/postfix/main.cf.bak > /etc/postfix/main.cf
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39 | sed '/^smtp.*smtpd$/s/inet/unix/' /etc/postfix/master.cf.bak > \
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40 | /etc/postfix/master.cf
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41 | /usr/bin/newaliases
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42 | /usr/sbin/postfix start</userinput></screen></para></sect3>
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43 |
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44 | <sect3><title>postfix init.d script</title>
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45 |
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46 | <para>To automate the running of postfix, use following command to create the init.d script:</para>
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47 |
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48 | <para><screen><userinput>cat > /etc/rc.d/init.d/postfix << "EOF"</userinput>
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49 | #!/bin/sh
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50 | # Begin $rc_base/init.d/postfix
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51 |
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52 | # Based on sysklogd script from LFS-3.1 and earlier.
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53 | # Rewritten by Gerard Beekmans - gerard@linuxfromscratch.org
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54 |
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55 | source /etc/sysconfig/rc
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56 | source $rc_functions
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57 |
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58 | case "$1" in
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59 |
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60 | start)
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61 | echo "Starting Postfix..."
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62 | loadproc postfix start
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63 | ;;
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64 |
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65 | stop)
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66 | echo "Stopping Postfix..."
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67 | loadproc postfix stop
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68 | ;;
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69 |
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70 | reload)
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71 | echo "Reloading Postfix..."
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72 | loadproc postfix reload
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73 | ;;
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74 |
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75 | restart)
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76 | $0 stop
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77 | sleep 1
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78 | $0 start
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79 | ;;
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80 |
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81 | *)
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82 | echo "Usage: $0 {start|stop|reload|restart}"
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83 | exit 1
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84 | ;;
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85 | esac
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86 |
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87 | # End $rc_base/init.d/postfix
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88 | <userinput>EOF
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89 | chmod 755 /etc/rc.d/init.d/postfix</userinput></screen></para>
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90 |
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91 | <para>Create the symbolic links to this file in the relevant rc.d directory with the following commands:
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92 |
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93 | <screen><userinput>cd /etc/rc.d/init.d &&
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94 | ln -sf ../init.d/postfix ../rc0.d/K25postfix &&
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95 | ln -sf ../init.d/postfix ../rc1.d/K25postfix &&
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96 | ln -sf ../init.d/postfix ../rc2.d/K25postfix &&
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97 | ln -sf ../init.d/postfix ../rc3.d/S35postfix &&
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98 | ln -sf ../init.d/postfix ../rc4.d/S35postfix &&
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99 | ln -sf ../init.d/postfix ../rc5.d/S35postfix &&
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100 | ln -sf ../init.d/postfix ../rc6.d/K25postfix</userinput></screen></para>
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101 | </sect3>
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102 |
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103 | </sect2>
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