Lock down single user mode in RHEL and CentOS 5.x/6.x
2015-06-02
Starting RHEL7, Single user mode requires one to login with the root password as a security lockdown. However, in RHEL6/5 and earlier, single user mode by default would provide root shell. This is a security hole that most corporate would want to fix/harden to ensure there is no malice and compliance to much of regulatory requirements.Read More →