Installation of Shadow Password Suite
Before you install this package, you may want to have a look at
the Shadow hint. It discusses how you can make your system more secure
regarding passwords, such as how to enable the more secure MD5 passwords
and how to get the most out of this Shadow package. The Shadow hint can
be found at .
Prepare Shadow to be compiled:
./configure --prefix=/usr --libdir=/usr/lib \
--enable-shared
Continue with compiling the package:
make
Install the package:
make install
Shadow uses two files to configure authentication settings for
the system. Install those config files:
cp etc/{limits,login.access} /etc
/var/spool/mail is the
old location of the user mailboxes. The location that is used nowadays
is /var/mail. Issue the following command to modify the mailbox
location:
sed 's%/var/spool/mail%/var/mail%' \
etc/login.defs.linux > /etc/login.defs
According to the manpage of vipw,
a vigr symlink should exist. Because the
shadow installation procedure doesn't create this symlink, it
must be created manually:
ln -s vipw /usr/sbin/vigr
The vipw link is currently pointing
to a non-existing file. Since this file isn't needed here, remove
it:
rm /bin/vipw
Move the sg program to the
/usr/bin directory:
mv /bin/sg /usr/bin
Move Shadow's dynamic libraries to a more appropriate location:
mv /usr/lib/lib{shadow,misc}.so.0* /lib
The libraries have been moved, but some packages expect to
find them in them in the
/usr/lib directory. To account
for this, create the following symlinks:
ln -sf ../../lib/libshadow.so.0 /usr/lib/libshadow.so &&
ln -sf ../../lib/libmisc.so.0 /usr/lib/libmisc.so
Sh-utils and Shadow Password Suite each install a unique
groups program. If you wish, you may remove the
groups program installed by the Shadow Password
Suite:
rm /bin/groups