The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
By default, an Oracle Linux system is configured so that you
cannot log in directly as root. You must log in
as a named user before using either su or
sudo to perform tasks as
root. This configuration allows system
accounting to trace the original login name of any user who
performs a privileged administrative action. If you want to grant
certain users authority to be able to perform specific
administrative tasks via sudo, use the
visudo command to modify the
/etc/sudoers file.
For example, the following entry grants the user
erin the same privileges as
root when using sudo, but
defines a limited set of privileges to frank so
that he can run commands such as chkconfig,
service, rpm, and
yum:
erin ALL=(ALL) ALL frank ALL= SERVICES, SOFTWARE
For more information, see the su(1),
sudo(8), sudoers(5), and
visudo(8) manual pages.