[b4b71892] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
|
---|
[ff769b8c] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
|
---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
|
---|
[b4b71892] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
|
---|
| 5 | %general-entities;
|
---|
[17fb537e] | 6 |
|
---|
[31f3a57] | 7 | <!ENTITY shadow-download-http "http://ftp.pld.org.pl/software/shadow/shadow-&shadow-version;.tar.bz2">
|
---|
| 8 | <!ENTITY shadow-download-ftp "ftp://ftp.pld.org.pl/software/shadow/shadow-&shadow-version;.tar.bz2">
|
---|
[d8684cbc] | 9 | <!ENTITY shadow-md5sum "5c6a105d89afb0900922260e9c5650cc">
|
---|
[980ef86b] | 10 | <!ENTITY shadow-size "1.0 MB">
|
---|
[d8684cbc] | 11 | <!ENTITY shadow-buildsize "13.6 MB">
|
---|
[349b53dd] | 12 | <!ENTITY shadow-time "0.3 SBU">
|
---|
[b4b71892] | 13 | ]>
|
---|
| 14 |
|
---|
[17fb537e] | 15 | <sect1 id="shadow" xreflabel="Shadow-&shadow-version;">
|
---|
[322f172] | 16 | <?dbhtml filename="shadow.html"?>
|
---|
| 17 |
|
---|
| 18 | <sect1info>
|
---|
| 19 | <othername>$LastChangedBy$</othername>
|
---|
| 20 | <date>$Date$</date>
|
---|
[e19ad480] | 21 | <keywordset>
|
---|
| 22 | <keyword role="package">shadow-&shadow-version;.tar</keyword>
|
---|
[9084c2eb] | 23 | <keyword role="ftpdir">shadow</keyword>
|
---|
[e19ad480] | 24 | </keywordset>
|
---|
[322f172] | 25 | </sect1info>
|
---|
| 26 |
|
---|
| 27 | <title>Shadow-&shadow-version;</title>
|
---|
| 28 |
|
---|
| 29 | <indexterm zone="shadow">
|
---|
| 30 | <primary sortas="a-Shadow">Shadow</primary>
|
---|
| 31 | </indexterm>
|
---|
| 32 |
|
---|
| 33 | <sect2 role="package">
|
---|
| 34 | <title>Introduction to Shadow</title>
|
---|
| 35 |
|
---|
| 36 | <para><application>Shadow</application> was indeed installed in LFS and
|
---|
| 37 | there is no reason to reinstall it unless you installed
|
---|
[d8684cbc] | 38 | <application>Linux-PAM</application>. If you did install
|
---|
| 39 | <application>Linux-PAM</application>, reinstalling
|
---|
| 40 | <application>Shadow</application> will allow programs such as
|
---|
| 41 | <command>login</command> and <command>su</command> to utilize PAM.</para>
|
---|
[322f172] | 42 |
|
---|
| 43 | <bridgehead renderas="sect3">Package Information</bridgehead>
|
---|
| 44 | <itemizedlist spacing="compact">
|
---|
| 45 | <listitem>
|
---|
| 46 | <para>Download (HTTP): <ulink url="&shadow-download-http;"/></para>
|
---|
| 47 | </listitem>
|
---|
| 48 | <listitem>
|
---|
| 49 | <para>Download (FTP): <ulink url="&shadow-download-ftp;"/></para>
|
---|
| 50 | </listitem>
|
---|
| 51 | <listitem>
|
---|
| 52 | <para>Download MD5 sum: &shadow-md5sum;</para>
|
---|
| 53 | </listitem>
|
---|
| 54 | <listitem>
|
---|
| 55 | <para>Download size: &shadow-size;</para>
|
---|
| 56 | </listitem>
|
---|
| 57 | <listitem>
|
---|
| 58 | <para>Estimated disk space required: &shadow-buildsize;</para>
|
---|
| 59 | </listitem>
|
---|
| 60 | <listitem>
|
---|
| 61 | <para>Estimated build time: &shadow-time;</para>
|
---|
| 62 | </listitem>
|
---|
| 63 | </itemizedlist>
|
---|
| 64 |
|
---|
| 65 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
|
---|
| 66 | <itemizedlist spacing='compact'>
|
---|
| 67 | <listitem>
|
---|
[d8684cbc] | 68 | <para>Required patch: <ulink
|
---|
| 69 | url="&patch-root;/shadow-&shadow-version;-configure_fix-1.patch"/></para>
|
---|
[322f172] | 70 | </listitem>
|
---|
| 71 | </itemizedlist>
|
---|
| 72 |
|
---|
| 73 | <bridgehead renderas="sect3">Shadow Dependencies</bridgehead>
|
---|
| 74 |
|
---|
| 75 | <bridgehead renderas="sect4">Required</bridgehead>
|
---|
[e19ad480] | 76 | <para role="required"><xref linkend="linux-pam"/></para>
|
---|
[322f172] | 77 |
|
---|
| 78 | </sect2>
|
---|
| 79 |
|
---|
| 80 | <sect2 role="installation">
|
---|
| 81 | <title>Installation of Shadow</title>
|
---|
| 82 |
|
---|
| 83 | <para>Reinstall <application>Shadow</application> by running the following
|
---|
| 84 | commands:</para>
|
---|
| 85 |
|
---|
[90bc173] | 86 | <screen><userinput>patch -Np1 -i ../shadow-&shadow-version;-configure_fix-1.patch &&
|
---|
| 87 | ./configure --libdir=/lib --enable-shared \
|
---|
[4fcf20a5] | 88 | --with-libpam --without-libcrack &&
|
---|
| 89 | sed -i 's/groups$(EXEEXT) //' src/Makefile &&
|
---|
[4d3f1239] | 90 | find man -name Makefile -exec sed -i '/groups/d' {} \; &&
|
---|
[322f172] | 91 | make</userinput></screen>
|
---|
[17fb537e] | 92 |
|
---|
[31f3a57] | 93 | <para>This package does not come with a test suite.</para>
|
---|
| 94 |
|
---|
[322f172] | 95 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
|
---|
[17fb537e] | 96 |
|
---|
[322f172] | 97 | <screen role="root"><userinput>make install &&
|
---|
[4fcf20a5] | 98 | mv -v /usr/bin/passwd /bin &&
|
---|
| 99 | mv -v /lib/libshadow.*a /usr/lib &&
|
---|
| 100 | rm -v /lib/libshadow.so &&
|
---|
[322f172] | 101 | ln -v -sf ../../lib/libshadow.so.0 /usr/lib/libshadow.so</userinput></screen>
|
---|
[b4b71892] | 102 |
|
---|
[322f172] | 103 | </sect2>
|
---|
[b4b71892] | 104 |
|
---|
[322f172] | 105 | <sect2 role="commands">
|
---|
| 106 | <title>Command Explanations</title>
|
---|
[b4b71892] | 107 |
|
---|
[322f172] | 108 | <para><parameter>--without-libcrack</parameter>: This switch tells
|
---|
| 109 | <application>Shadow</application> not to use
|
---|
| 110 | <filename class='libraryfile'>libcrack</filename>. This is desired as
|
---|
[d8684cbc] | 111 | <application>Linux-PAM</application> will provide
|
---|
| 112 | <filename class='libraryfile'>libcrack</filename> functionality.</para>
|
---|
[31f3a57] | 113 |
|
---|
[322f172] | 114 | <para><command>sed -i ...</command>: These commands are used to suppress
|
---|
[d8684cbc] | 115 | the installation of the <command>groups</command> program and man pages
|
---|
| 116 | as the version from the <application>Coreutils</application> package
|
---|
| 117 | installed during LFS is preferred.</para>
|
---|
[39975e9] | 118 |
|
---|
[322f172] | 119 | </sect2>
|
---|
[b4b71892] | 120 |
|
---|
[322f172] | 121 | <sect2 role="configuration">
|
---|
| 122 | <title>Configuring Linux-PAM to Work with Shadow</title>
|
---|
[b4b71892] | 123 |
|
---|
[322f172] | 124 | <sect3 id="pam.d">
|
---|
| 125 | <title>Config Files</title>
|
---|
[b4b71892] | 126 |
|
---|
[1ba671c] | 127 | <para><filename>/etc/pam.d/*</filename> or alternatively
|
---|
| 128 | <filename>/etc/pam.conf, /etc/login.defs and
|
---|
| 129 | /etc/security/*</filename></para>
|
---|
[b4b71892] | 130 |
|
---|
[322f172] | 131 | <indexterm zone="shadow pam.d">
|
---|
| 132 | <primary sortas="e-etc-pam.d">/etc/pam.d/*</primary>
|
---|
| 133 | </indexterm>
|
---|
[2197589] | 134 |
|
---|
[322f172] | 135 | <indexterm zone="shadow pam.d">
|
---|
| 136 | <primary sortas="e-etc-pam.conf">/etc/pam.conf</primary>
|
---|
| 137 | </indexterm>
|
---|
[4fcf20a5] | 138 |
|
---|
[1ba671c] | 139 | <indexterm zone="shadow pam.d">
|
---|
| 140 | <primary sortas="e-etc-login.defs">/etc/login.defs</primary>
|
---|
| 141 | </indexterm>
|
---|
| 142 |
|
---|
| 143 | <indexterm zone="shadow pam.d">
|
---|
| 144 | <primary sortas="e-etc-security">/etc/security/*</primary>
|
---|
| 145 | </indexterm>
|
---|
| 146 |
|
---|
[322f172] | 147 | </sect3>
|
---|
| 148 |
|
---|
| 149 | <sect3>
|
---|
| 150 | <title>Configuration Information</title>
|
---|
| 151 |
|
---|
[1ba671c] | 152 | <sect4 id="pam-login-defs">
|
---|
| 153 | <title>Configuring /etc/login.defs</title>
|
---|
| 154 |
|
---|
| 155 | <para>The <command>login</command> program currently performs many
|
---|
| 156 | functions which <application>Linux-PAM</application> modules should
|
---|
| 157 | now handle. The following <command>sed</command> command will comment
|
---|
| 158 | out the appropriate lines in <filename>/etc/login.defs</filename>, and
|
---|
| 159 | stop <command>login</command> from performing these functions (a backup
|
---|
| 160 | file named <filename>/etc/login.defs.orig</filename> is also created
|
---|
[d8684cbc] | 161 | to preserve the original file's contents). Issue the following commands
|
---|
| 162 | as the <systemitem class="username">root</systemitem> user:</para>
|
---|
[1ba671c] | 163 |
|
---|
| 164 | <indexterm zone="shadow pam-login-defs">
|
---|
| 165 | <primary sortas="e-etc-login.defs">/etc/login.defs</primary>
|
---|
| 166 | </indexterm>
|
---|
| 167 |
|
---|
| 168 | <screen role="root"><userinput>install -v -m644 /etc/login.defs /etc/login.defs.orig &&
|
---|
| 169 | for FUNCTION in LASTLOG_ENAB MAIL_CHECK_ENAB \
|
---|
| 170 | PORTTIME_CHECKS_ENAB CONSOLE \
|
---|
| 171 | MOTD_FILE NOLOGINS_FILE PASS_MIN_LEN \
|
---|
| 172 | SU_WHEEL_ONLY MD5_CRYPT_ENAB \
|
---|
| 173 | CONSOLE_GROUPS ENVIRON_FILE \
|
---|
| 174 | ULIMIT ENV_TZ ENV_HZ ENV_SUPATH \
|
---|
| 175 | ENV_PATH QMAIL_DIR MAIL_DIR MAIL_FILE \
|
---|
| 176 | CHFN_AUTH FAILLOG_ENAB QUOTAS_ENAB FTMP_FILE
|
---|
| 177 | do
|
---|
[d8684cbc] | 178 | sed -i "s/^$FUNCTION/# &/" /etc/login.defs
|
---|
[1ba671c] | 179 | done</userinput></screen>
|
---|
| 180 |
|
---|
| 181 | <para>If you have <application>CrackLib</application> installed,
|
---|
[d8684cbc] | 182 | also comment out four more lines using the following command as the
|
---|
| 183 | <systemitem class="username">root</systemitem> user:</para>
|
---|
[1ba671c] | 184 |
|
---|
| 185 | <screen role="root"><userinput>for FUNCTION in OBSCURE_CHECKS_ENAB CRACKLIB_DICTPATH \
|
---|
| 186 | PASS_CHANGE_TRIES PASS_ALWAYS_WARN
|
---|
| 187 | do
|
---|
[d8684cbc] | 188 | sed -i "s/^$FUNCTION/# &/" /etc/login.defs
|
---|
[1ba671c] | 189 | done</userinput></screen>
|
---|
| 190 |
|
---|
| 191 | </sect4>
|
---|
| 192 |
|
---|
| 193 | <sect4>
|
---|
| 194 | <title>Configuring the /etc/pam.d/ Files</title>
|
---|
| 195 |
|
---|
| 196 | <para>Add the following <application>Linux-PAM</application> configuration
|
---|
| 197 | files to <filename class="directory">/etc/pam.d/</filename> (or add them
|
---|
| 198 | to <filename>/etc/pam.conf</filename> with the additional field for
|
---|
[d8684cbc] | 199 | the program). Issue the commands as the
|
---|
| 200 | <systemitem class="username">root</systemitem> user:</para>
|
---|
[1ba671c] | 201 |
|
---|
| 202 | </sect4>
|
---|
[322f172] | 203 |
|
---|
| 204 | <sect4>
|
---|
[974951c] | 205 | <title>'login' (with CrackLib)</title>
|
---|
[322f172] | 206 |
|
---|
| 207 | <screen role="root"><userinput>cat > /etc/pam.d/login << "EOF"
|
---|
| 208 | <literal># Begin /etc/pam.d/login
|
---|
[4fcf20a5] | 209 |
|
---|
| 210 | auth requisite pam_securetty.so
|
---|
| 211 | auth requisite pam_nologin.so
|
---|
| 212 | auth required pam_unix.so
|
---|
| 213 | account required pam_access.so
|
---|
| 214 | account required pam_unix.so
|
---|
[7fb0e285] | 215 | session required pam_env.so
|
---|
[4fcf20a5] | 216 | session required pam_motd.so
|
---|
| 217 | session required pam_limits.so
|
---|
| 218 | session optional pam_mail.so dir=/var/mail standard
|
---|
| 219 | session optional pam_lastlog.so
|
---|
| 220 | session required pam_unix.so
|
---|
| 221 | password required pam_cracklib.so retry=3 difok=8 minlen=5 \
|
---|
| 222 | dcredit=3 ocredit=3 \
|
---|
| 223 | ucredit=2 lcredit=2
|
---|
| 224 | password required pam_unix.so md5 shadow use_authtok
|
---|
| 225 |
|
---|
[322f172] | 226 | # End /etc/pam.d/login</literal>
|
---|
| 227 | EOF</userinput></screen>
|
---|
| 228 |
|
---|
| 229 | </sect4>
|
---|
[4fcf20a5] | 230 |
|
---|
[322f172] | 231 | <sect4>
|
---|
[974951c] | 232 | <title>'login' (without CrackLib)</title>
|
---|
[4fcf20a5] | 233 |
|
---|
[322f172] | 234 | <screen role="root"><userinput>cat > /etc/pam.d/login << "EOF"
|
---|
| 235 | <literal># Begin /etc/pam.d/login
|
---|
[b4b71892] | 236 |
|
---|
| 237 | auth requisite pam_securetty.so
|
---|
| 238 | auth requisite pam_nologin.so
|
---|
| 239 | auth required pam_env.so
|
---|
| 240 | auth required pam_unix.so
|
---|
| 241 | account required pam_access.so
|
---|
| 242 | account required pam_unix.so
|
---|
| 243 | session required pam_motd.so
|
---|
| 244 | session required pam_limits.so
|
---|
[4fcf20a5] | 245 | session optional pam_mail.so dir=/var/mail standard
|
---|
[b4b71892] | 246 | session optional pam_lastlog.so
|
---|
| 247 | session required pam_unix.so
|
---|
[4fcf20a5] | 248 | password required pam_unix.so md5 shadow
|
---|
[b4b71892] | 249 |
|
---|
[322f172] | 250 | # End /etc/pam.d/login</literal>
|
---|
| 251 | EOF</userinput></screen>
|
---|
[4fcf20a5] | 252 |
|
---|
[322f172] | 253 | </sect4>
|
---|
[4fcf20a5] | 254 |
|
---|
[322f172] | 255 | <sect4>
|
---|
[974951c] | 256 | <title>'passwd' (with CrackLib)</title>
|
---|
[322f172] | 257 |
|
---|
| 258 | <screen role="root"><userinput>cat > /etc/pam.d/passwd << "EOF"
|
---|
| 259 | <literal># Begin /etc/pam.d/passwd
|
---|
[b4b71892] | 260 |
|
---|
[4fcf20a5] | 261 | password required pam_cracklib.so retry=3 difok=8 minlen=5 \
|
---|
| 262 | dcredit=3 ocredit=3 \
|
---|
| 263 | ucredit=2 lcredit=2
|
---|
| 264 | password required pam_unix.so md5 shadow use_authtok
|
---|
[b4b71892] | 265 |
|
---|
[322f172] | 266 | # End /etc/pam.d/passwd</literal>
|
---|
| 267 | EOF</userinput></screen>
|
---|
| 268 |
|
---|
| 269 | </sect4>
|
---|
[b4b71892] | 270 |
|
---|
[322f172] | 271 | <sect4>
|
---|
[974951c] | 272 | <title>'passwd' (without CrackLib)</title>
|
---|
[4fcf20a5] | 273 |
|
---|
[322f172] | 274 | <screen role="root"><userinput>cat > /etc/pam.d/passwd << "EOF"
|
---|
| 275 | <literal># Begin /etc/pam.d/passwd
|
---|
[4fcf20a5] | 276 |
|
---|
| 277 | password required pam_unix.so md5 shadow
|
---|
[b4b71892] | 278 |
|
---|
[322f172] | 279 | # End /etc/pam.d/passwd</literal>
|
---|
| 280 | EOF</userinput></screen>
|
---|
| 281 |
|
---|
| 282 | </sect4>
|
---|
[4fcf20a5] | 283 |
|
---|
[322f172] | 284 | <sect4>
|
---|
| 285 | <title>'su'</title>
|
---|
[4fcf20a5] | 286 |
|
---|
[322f172] | 287 | <screen role="root"><userinput>cat > /etc/pam.d/su << "EOF"
|
---|
| 288 | <literal># Begin /etc/pam.d/su
|
---|
[b4b71892] | 289 |
|
---|
| 290 | auth sufficient pam_rootok.so
|
---|
| 291 | auth required pam_unix.so
|
---|
| 292 | account required pam_unix.so
|
---|
[4fcf20a5] | 293 | session optional pam_mail.so dir=/var/mail standard
|
---|
[7fb0e285] | 294 | session required pam_env.so
|
---|
[b4b71892] | 295 | session required pam_unix.so
|
---|
| 296 |
|
---|
[322f172] | 297 | # End /etc/pam.d/su</literal>
|
---|
| 298 | EOF</userinput></screen>
|
---|
[b4b71892] | 299 |
|
---|
[322f172] | 300 | </sect4>
|
---|
[b4b71892] | 301 |
|
---|
[322f172] | 302 | <sect4>
|
---|
| 303 | <title>'chage'</title>
|
---|
| 304 |
|
---|
| 305 | <screen role="root"><userinput>cat > /etc/pam.d/chage << "EOF"
|
---|
| 306 | <literal># Begin /etc/pam.d/chage
|
---|
[b4b71892] | 307 |
|
---|
| 308 | auth sufficient pam_rootok.so
|
---|
| 309 | auth required pam_unix.so
|
---|
| 310 | account required pam_unix.so
|
---|
| 311 | session required pam_unix.so
|
---|
| 312 | password required pam_permit.so
|
---|
| 313 |
|
---|
[322f172] | 314 | # End /etc/pam.d/chage</literal>
|
---|
| 315 | EOF</userinput></screen>
|
---|
| 316 |
|
---|
| 317 | </sect4>
|
---|
[b4b71892] | 318 |
|
---|
[322f172] | 319 | <sect4>
|
---|
| 320 | <title>'chpasswd', 'newusers', 'groupadd', 'groupdel',
|
---|
| 321 | 'groupmod', 'useradd', 'userdel', and 'usermod'</title>
|
---|
[39975e9] | 322 |
|
---|
[322f172] | 323 | <screen role="root"><userinput>for PROGRAM in chpasswd newusers groupadd groupdel \
|
---|
[4fcf20a5] | 324 | groupmod useradd userdel usermod
|
---|
| 325 | do
|
---|
[904f31e2] | 326 | install -v -m644 /etc/pam.d/chage /etc/pam.d/$PROGRAM
|
---|
[d8684cbc] | 327 | sed -i "s/chage/$PROGRAM/" /etc/pam.d/$PROGRAM
|
---|
[322f172] | 328 | done</userinput></screen>
|
---|
| 329 |
|
---|
| 330 | <warning>
|
---|
| 331 | <para>At this point, you should do a simple test to see if
|
---|
| 332 | <application>Shadow</application> is working as expected. Open
|
---|
[1ba671c] | 333 | another terminal and log in as a user, then <command>su</command> to
|
---|
[974951c] | 334 | <systemitem class="username">root</systemitem>. If you do not see any
|
---|
| 335 | errors, then all is well and you should proceed with the rest of the
|
---|
[322f172] | 336 | configuration. If you did receive errors, stop now and double check
|
---|
[974951c] | 337 | the above configuration files manually. If you cannot find and
|
---|
[322f172] | 338 | fix the error, you should recompile <application>Shadow</application>
|
---|
| 339 | replacing <option>--with-libpam</option> with
|
---|
[1ba671c] | 340 | <option>--without-libpam</option> in the above instructions (also move
|
---|
| 341 | the <filename>/etc/login.defs.orig</filename> backup file to
|
---|
| 342 | <filename>/etc/login.defs</filename>). If you
|
---|
[322f172] | 343 | fail to do this and the errors remain, you will be unable to log into
|
---|
| 344 | your system.</para>
|
---|
| 345 | </warning>
|
---|
| 346 |
|
---|
[349b53dd] | 347 | </sect4>
|
---|
| 348 |
|
---|
| 349 | <sect4>
|
---|
| 350 | <title>Other</title>
|
---|
| 351 |
|
---|
[322f172] | 352 | <para>Currently, <filename>/etc/pam.d/other</filename> is configured
|
---|
| 353 | to allow anyone with an account on the machine to use PAM-aware
|
---|
| 354 | programs without a configuration file for that program. After testing
|
---|
| 355 | <application>Linux-PAM</application> for proper configuration, install
|
---|
| 356 | a more restrictive <filename>other</filename> file so that
|
---|
| 357 | program-specific configuration files are required:</para>
|
---|
| 358 |
|
---|
| 359 | <screen role="root"><userinput>cat > /etc/pam.d/other << "EOF"
|
---|
| 360 | <literal># Begin /etc/pam.d/other
|
---|
[b4b71892] | 361 |
|
---|
| 362 | auth required pam_deny.so
|
---|
| 363 | auth required pam_warn.so
|
---|
| 364 | account required pam_deny.so
|
---|
| 365 | session required pam_deny.so
|
---|
| 366 | password required pam_deny.so
|
---|
| 367 | password required pam_warn.so
|
---|
| 368 |
|
---|
[322f172] | 369 | # End /etc/pam.d/other</literal>
|
---|
| 370 | EOF</userinput></screen>
|
---|
[4fcf20a5] | 371 |
|
---|
[322f172] | 372 | </sect4>
|
---|
[4fcf20a5] | 373 |
|
---|
[322f172] | 374 | <sect4 id="pam-access">
|
---|
| 375 | <title>Configuring Login Access</title>
|
---|
[4fcf20a5] | 376 |
|
---|
[322f172] | 377 | <para>Instead of using the <filename>/etc/login.access</filename>
|
---|
| 378 | file for controlling access to the system,
|
---|
| 379 | <application>Linux-PAM</application> uses the
|
---|
| 380 | <filename class='libraryfile'>pam_access.so</filename> module along
|
---|
| 381 | with the <filename>/etc/security/access.conf</filename> file. Rename
|
---|
| 382 | the <filename>/etc/login.access</filename> file using the following
|
---|
| 383 | command:</para>
|
---|
| 384 |
|
---|
| 385 | <indexterm zone="shadow pam-access">
|
---|
| 386 | <primary sortas="e-etc-security-access.conf">/etc/security/access.conf</primary>
|
---|
| 387 | </indexterm>
|
---|
| 388 |
|
---|
| 389 | <screen role="root"><userinput>if [ -f /etc/login.access ]; then
|
---|
[4fcf20a5] | 390 | mv -v /etc/login.access /etc/login.access.NOUSE
|
---|
[322f172] | 391 | fi</userinput></screen>
|
---|
| 392 |
|
---|
| 393 | </sect4>
|
---|
| 394 |
|
---|
| 395 | <sect4 id="pam-limits">
|
---|
| 396 | <title>Configuring Resource Limits</title>
|
---|
| 397 |
|
---|
| 398 | <para>Instead of using the <filename>/etc/limits</filename> file
|
---|
| 399 | for limiting usage of system resources,
|
---|
| 400 | <application>Linux-PAM</application> uses the
|
---|
| 401 | <filename class='libraryfile'>pam_limits.so</filename> module along
|
---|
| 402 | with the <filename>/etc/security/limits.conf</filename> file. Rename
|
---|
| 403 | the <filename>/etc/limits</filename> file using the following
|
---|
| 404 | command:</para>
|
---|
| 405 |
|
---|
| 406 | <indexterm zone="shadow pam-limits">
|
---|
| 407 | <primary sortas="e-etc-security-limits.conf">/etc/security/limits.conf</primary>
|
---|
| 408 | </indexterm>
|
---|
| 409 |
|
---|
| 410 | <screen role="root"><userinput>if [ -f /etc/limits ]; then
|
---|
[4fcf20a5] | 411 | mv -v /etc/limits /etc/limits.NOUSE
|
---|
[322f172] | 412 | fi</userinput></screen>
|
---|
| 413 |
|
---|
| 414 | </sect4>
|
---|
[4fcf20a5] | 415 |
|
---|
[7fb0e285] | 416 | <sect4 id="pam-env">
|
---|
| 417 | <title>Configuring Default Environment</title>
|
---|
| 418 |
|
---|
[bccbdaea] | 419 | <para>During previous configuration, several items were removed from
|
---|
[7fb0e285] | 420 | <filename>/etc/login.defs</filename>. Some of these items are now
|
---|
[bccbdaea] | 421 | controlled by the <filename class='libraryfile'>pam_env.so</filename>
|
---|
| 422 | module and the <filename>/etc/security/pam_env.conf</filename>
|
---|
| 423 | configuration file. In particular, the default path has been
|
---|
| 424 | changed. To recover your default path, execute the following
|
---|
[7fb0e285] | 425 | commands:</para>
|
---|
| 426 |
|
---|
[d8684cbc] | 427 | <screen role="root"><userinput>ENV_PATH=`grep '^ENV_PATH' /etc/login.defs.orig | \
|
---|
[7fb0e285] | 428 | awk '{ print $2 }' | sed 's/PATH=//'` &&
|
---|
[d8684cbc] | 429 | echo 'PATH DEFAULT='`echo "${ENV_PATH}"`\
|
---|
| 430 | ' OVERRIDE=${PATH}' \
|
---|
[7fb0e285] | 431 | >> /etc/security/pam_env.conf &&
|
---|
[d8684cbc] | 432 | unset ENV_PATH</userinput></screen>
|
---|
[7fb0e285] | 433 |
|
---|
[d8684cbc] | 434 | <note>
|
---|
[bccbdaea] | 435 | <para>ENV_SUPATH is no longer supported. You must create
|
---|
| 436 | a valid <filename>/root/.bashrc</filename> file to provide a
|
---|
[d8684cbc] | 437 | modified path for the super-user.</para>
|
---|
| 438 | </note>
|
---|
[7fb0e285] | 439 |
|
---|
| 440 | </sect4>
|
---|
| 441 |
|
---|
[322f172] | 442 | </sect3>
|
---|
[b4b71892] | 443 |
|
---|
[322f172] | 444 | </sect2>
|
---|
[f45b1953] | 445 |
|
---|
[322f172] | 446 | <sect2 role="content">
|
---|
| 447 | <title>Contents</title>
|
---|
[17fb537e] | 448 |
|
---|
[322f172] | 449 | <para>A list of the installed files, along with their short descriptions
|
---|
| 450 | can be found at
|
---|
| 451 | <ulink url="&lfs-root;/chapter06/shadow.html#contents-shadow"/>.</para>
|
---|
[17fb537e] | 452 |
|
---|
[322f172] | 453 | </sect2>
|
---|
[17fb537e] | 454 |
|
---|
[f45b1953] | 455 | </sect1>
|
---|