[96e3995] | 1 | <sect2>
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| 2 | <title>Configuring PAM to work with shadow</title>
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| 3 |
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| 4 | <sect3><title>Config files</title>
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| 5 | <para><userinput>/etc/pam.d/login /etc/pam.d/passwd /etc/pam.d/su
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| 6 | /etc/pam.d/shadow /etc/pam.d/useradd</userinput></para>
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| 7 | </sect3>
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| 8 |
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| 9 | <sect3><title>Configuration Information</title>
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| 10 |
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| 11 | <para>Add the following PAM configuration files to
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| 12 | <filename>/etc/pam.d</filename> (or add them to
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| 13 | <filename>/etc/pam.conf</filename> with
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| 14 | the additional field for the program).
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| 15 | </para>
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| 16 | <screen><userinput>cat > /etc/pam.d/login << "EOF"</userinput>
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| 17 | # Begin /etc/pam.d/login
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| 18 |
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| 19 | auth requisite pam_securetty.so
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| 20 | auth requisite pam_nologin.so
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| 21 | auth required pam_env.so
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| 22 | auth required pam_unix.so
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| 23 | account required pam_access.so
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| 24 | account required pam_unix.so
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| 25 | session required pam_motd.so
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| 26 | session required pam_limits.so
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| 27 | session optional pam_mail.so dir=/var/mail standard
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| 28 | session optional pam_lastlog.so
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| 29 | session required pam_unix.so
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| 30 |
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| 31 | # End /etc/pam.d/login
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| 32 | <userinput>EOF
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[409b449] | 33 | cat > /etc/pam.d/passwd << "EOF"</userinput>
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[96e3995] | 34 | # Begin /etc/pam.d/passwd
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| 35 |
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[cb52edcf] | 36 | password required pam_unix.so md5 shadow
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[96e3995] | 37 |
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| 38 | # End /etc/pam.d/passwd
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| 39 | <userinput>EOF
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[409b449] | 40 | cat > /etc/pam.d/shadow << "EOF"</userinput>
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[96e3995] | 41 | # Begin /etc/pam.d/shadow
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| 42 |
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| 43 | auth sufficient pam_rootok.so
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| 44 | auth required pam_unix.so
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| 45 | account required pam_unix.so
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| 46 | session required pam_unix.so
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| 47 | password required pam_permit.so
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| 48 |
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| 49 | # End /etc/pam.d/shadow
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| 50 | <userinput>EOF
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| 51 | cat > /etc/pam.d/su << "EOF"</userinput>
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| 52 | # Begin /etc/pam.d/su
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| 53 |
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| 54 | auth sufficient pam_rootok.so
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| 55 | auth required pam_unix.so
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| 56 | account required pam_unix.so
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| 57 | session required pam_unix.so
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| 58 |
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| 59 | # End /etc/pam.d/su
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| 60 | <userinput>EOF
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| 61 | cat > /etc/pam.d/useradd << "EOF"</userinput>
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| 62 | # Begin /etc/pam.d/useradd
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| 63 |
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| 64 | auth sufficient pam_rootok.so
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| 65 | auth required pam_unix.so
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| 66 | account required pam_unix.so
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| 67 | session required pam_unix.so
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| 68 | password required pam_permit.so
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| 69 |
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| 70 | # End /etc/pam.d/useradd
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[c8e101d8] | 71 | <userinput>EOF
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| 72 | cat > /etc/pam.d/chage << "EOF"</userinput>
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| 73 | # Begin /etc/pam.d/chage
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| 74 |
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| 75 | auth sufficient pam_rootok.so
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| 76 | auth required pam_unix.so
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| 77 | account required pam_unix.so
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| 78 | session required pam_unix.so
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| 79 | password required pam_permit.so
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| 80 |
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| 81 | # End /etc/pam.d/chage
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[96e3995] | 82 | <userinput>EOF</userinput></screen>
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| 83 |
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| 84 | <para>Currently, <filename>/etc/pam.d/other</filename> is configured to
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| 85 | allow anyone with an account on the machine to use programs
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| 86 | that do not specifically have a configuration file of their own. After
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| 87 | testing PAM for proper configuration, it can be changed to the
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| 88 | following:</para>
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| 89 |
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| 90 | <screen><userinput>cat > /etc/pam.d/other << "EOF"</userinput>
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| 91 | # Begin /etc/pam.d/other
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| 92 |
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| 93 | auth required pam_deny.so
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| 94 | auth required pam_warn.so
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| 95 | account required pam_deny.so
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| 96 | session required pam_deny.so
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| 97 | password required pam_deny.so
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| 98 | password required pam_warn.so
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| 99 |
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| 100 | # End /etc/pam.d/other
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| 101 | <userinput>EOF</userinput></screen>
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| 102 |
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| 103 | <para>Finally, edit <filename>/etc/login.defs</filename> by adding '#'
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| 104 | to the beginning of the following lines:</para>
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| 105 | <screen>DIALUPS_CHECK_ENAB
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| 106 | LASTLOG_ENAB
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| 107 | MAIL_CHECK_ENAB
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| 108 | PORTTIME_CHECKS_ENAB
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| 109 | CONSOLE
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| 110 | MOTD_FILE
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| 111 | NOLOGINS_FILE
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| 112 | PASS_MIN_LEN
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| 113 | SU_WHEEL_ONLY
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| 114 | MD5_CRYPT_ENAB
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| 115 | CONSOLE_GROUPS
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| 116 | ENVIRON_FILE</screen>
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| 117 |
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| 118 | <para>This stops login from performing these functions, as they will now
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| 119 | be performed by PAM modules.</para>
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| 120 |
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| 121 | </sect3>
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| 122 |
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| 123 | </sect2>
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| 124 |
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