diff --git a/ChangeLog b/ChangeLog
index 168308af..8ea8d6ee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,15 @@
-2011-11-16  Nicolas François  <nicolas.francois@centraliens.net>
+2011-11-19  Nicolas François  <nicolas.francois@centraliens.net>
+
+	* man/useradd.8.xml, man/groupadd.8.xml, man/usermod.8.xml,
+	man/groupmod.8.xml: Avoid hardcoded values, and reference instead
+	the configuration options (e.g. UID_MIN)
+	* man/groupmod.8.xml, man/usermod.8.xml: Add missing reference to
+	login.defs
+	* man/login.defs.d/UID_MAX.xml, man/login.defs.d/SYS_UID_MAX.xml,
+	man/login.defs.d/GID_MAX.xml, man/login.defs.d/SYS_GID_MAX.xml:
+	Document the default values.
+
+2011-11-19  Nicolas François  <nicolas.francois@centraliens.net>
 
 	* src/gpasswd.c: Change of group password enforces gshadow
 	password. Set /etc/group password to "x".
diff --git a/man/groupadd.8.xml b/man/groupadd.8.xml
index 2f07e6e1..caded6be 100644
--- a/man/groupadd.8.xml
+++ b/man/groupadd.8.xml
@@ -99,9 +99,12 @@
 	  <para>The numerical value of the group's ID. This value must be
 	    unique, unless the <option>-o</option> option is used. The value
 	    must be non-negative. The default is to use the smallest ID
-	    value greater than 999 and greater than every other group.
-	    Values between 0 and 999 are typically reserved for system
-	    accounts.
+	    value greater than or equal to <option>GID_MIN</option> and
+	    greater than every other group.
+	  </para>
+	  <para>
+	    See also the <option>-r</option> option and the
+	    <option>GID_MAX</option> description.
 	  </para>
 	</listitem>
       </varlistentry>
diff --git a/man/groupmod.8.xml b/man/groupmod.8.xml
index 640250e2..f50cdf66 100644
--- a/man/groupmod.8.xml
+++ b/man/groupmod.8.xml
@@ -86,8 +86,7 @@
 	    The value of
 	    <replaceable>GID</replaceable> must be a non-negative decimal
 	    integer. This value must be unique, unless the
-	    <option>-o</option> option is used. Values between 0 and 999 are
-	    typically reserved for system groups.
+	    <option>-o</option> option is used.
 	  </para>
 	  <para>
 	    Users who use the group as primary group will be updated to
@@ -99,6 +98,12 @@
 	    <replaceable>GROUP</replaceable>, must have their group ID
 	    changed manually.
 	  </para>
+	  <para>
+	    No checks will be performed with regard to the
+	    <option>GID_MIN</option>, <option>GID_MAX</option>,
+	    <option>SYS_GID_MIN</option>, or <option>SYS_GID_MAX</option>
+	    from <filename>/etc/login.defs</filename>.
+	  </para>
 	</listitem>
       </varlistentry>
       <varlistentry>
@@ -195,6 +200,12 @@
 	  <para>Secure group account information.</para>
 	</listitem>
       </varlistentry>
+      <varlistentry>
+	<term><filename>/etc/login.defs</filename></term>
+	<listitem>
+	  <para>Shadow password suite configuration.</para>
+	</listitem>
+      </varlistentry>
       <varlistentry>
 	<term><filename>/etc/passwd</filename></term>
 	<listitem>
@@ -276,6 +287,9 @@
       <citerefentry>
 	<refentrytitle>groupdel</refentrytitle><manvolnum>8</manvolnum>
       </citerefentry>,
+      <citerefentry>
+	<refentrytitle>login.defs</refentrytitle><manvolnum>5</manvolnum>
+      </citerefentry>,
       <citerefentry>
 	<refentrytitle>useradd</refentrytitle><manvolnum>8</manvolnum>
       </citerefentry>,
diff --git a/man/login.defs.d/GID_MAX.xml b/man/login.defs.d/GID_MAX.xml
index fdf18e9b..639eafb0 100644
--- a/man/login.defs.d/GID_MAX.xml
+++ b/man/login.defs.d/GID_MAX.xml
@@ -37,5 +37,9 @@
       <command>useradd</command>, <command>groupadd</command>, or
       <command>newusers</command>.
     </para>
+    <para>
+      The default value for <option>GID_MIN</option> (resp.
+      <option>GID_MAX</option>) is 1000 (resp. 60000).
+    </para>
   </listitem>
 </varlistentry>
diff --git a/man/login.defs.d/SYS_GID_MAX.xml b/man/login.defs.d/SYS_GID_MAX.xml
index 547139a6..4a9ed28b 100644
--- a/man/login.defs.d/SYS_GID_MAX.xml
+++ b/man/login.defs.d/SYS_GID_MAX.xml
@@ -35,5 +35,9 @@
       <command>useradd</command>, <command>groupadd</command>, or
       <command>newusers</command>.
     </para>
+    <para>
+      The default value for <option>SYS_GID_MIN</option> (resp.
+      <option>SYS_GID_MAX</option>) is 101 (resp. <option>GID_MIN</option>-1).
+    </para>
   </listitem>
 </varlistentry>
diff --git a/man/login.defs.d/SYS_UID_MAX.xml b/man/login.defs.d/SYS_UID_MAX.xml
index 2d82563a..3ca6cee2 100644
--- a/man/login.defs.d/SYS_UID_MAX.xml
+++ b/man/login.defs.d/SYS_UID_MAX.xml
@@ -34,5 +34,9 @@
       Range of user IDs used for the creation of system users by
       <command>useradd</command> or <command>newusers</command>.
     </para>
+    <para>
+      The default value for <option>SYS_UID_MIN</option> (resp.
+      <option>SYS_UID_MAX</option>) is 101 (resp. <option>UID_MIN</option>-1).
+    </para>
   </listitem>
 </varlistentry>
diff --git a/man/login.defs.d/UID_MAX.xml b/man/login.defs.d/UID_MAX.xml
index c3054ea1..77cf41f9 100644
--- a/man/login.defs.d/UID_MAX.xml
+++ b/man/login.defs.d/UID_MAX.xml
@@ -36,5 +36,9 @@
       Range of user IDs used for the creation of regular users by
       <command>useradd</command> or <command>newusers</command>.
     </para>
+    <para>
+      The default value for <option>UID_MIN</option> (resp.
+      <option>UID_MAX</option>) is 1000 (resp. 60000).
+    </para>
   </listitem>
 </varlistentry>
diff --git a/man/useradd.8.xml b/man/useradd.8.xml
index d1d1f1c1..ff165b12 100644
--- a/man/useradd.8.xml
+++ b/man/useradd.8.xml
@@ -472,8 +472,12 @@
 	    The numerical value of the user's ID. This value must be unique,
 	    unless the <option>-o</option> option is used. The value must be
 	    non-negative. The default is to use the smallest ID value
-	    greater than 999 and greater than every other user. Values
-	    between 0 and 999 are typically reserved for system accounts.
+	    greater than or equal to <option>UID_MIN</option> and greater
+	    than every other user.
+	  </para>
+	  <para>
+	    See also the <option>-r</option> option and the
+	    <option>UID_MAX</option> description.
 	  </para>
 	</listitem>
       </varlistentry>
diff --git a/man/usermod.8.xml b/man/usermod.8.xml
index 3a85b86d..f56d1713 100644
--- a/man/usermod.8.xml
+++ b/man/usermod.8.xml
@@ -331,8 +331,7 @@
 	  <para>
 	    This value must be unique,
 	    unless the <option>-o</option> option is used. The value must be
-	    non-negative. Values between 0 and 999 are typically reserved
-	    for system accounts.
+	    non-negative.
 	  </para>
 	  <para>
 	    The user's mailbox, and any files which the user owns and which are
@@ -343,6 +342,12 @@
 	    The ownership of files outside of the user's home directory
 	    must be fixed manually.
 	  </para>
+	  <para>
+	    No checks will be performed with regard to the
+	    <option>UID_MIN</option>, <option>UID_MAX</option>,
+	    <option>SYS_UID_MIN</option>, or <option>SYS_UID_MAX</option>
+	    from <filename>/etc/login.defs</filename>.
+	  </para>
 	</listitem>
       </varlistentry>
       <varlistentry>
@@ -430,6 +435,12 @@
 	  <para>Secure group account information.</para>
 	</listitem>
       </varlistentry>
+      <varlistentry>
+	<term><filename>/etc/login.defs</filename></term>
+	<listitem>
+	  <para>Shadow password suite configuration.</para>
+	</listitem>
+      </varlistentry>
       <varlistentry>
 	<term><filename>/etc/passwd</filename></term>
 	<listitem>