e LDAP server will be named instructor.example.com in this procedure.

Install the following packages:

# yum install -y openldap openldap-clients openldap-servers migrationtools net-tools.x86_64 Generate a LDAP password from a secret key (using redhat):

# slappasswd -s redhat -n > /etc/openldap/passwd Generate a X509 certificate valid for 365 days:

# openssl req -new -x509 -nodes -out […]

Install the NTP package:

# yum install -y ntp Activate the NTP service at boot:

# systemctl enable ntpd Start the NTP service:

# systemctl start ntpd The NTP configuration is in the /etc/ntp.conf file.

To quickly synchronize a server, type:

# systemctl stop ntpd # ntpdate ntp.internode.on.net 5 Jul 10:36:58 ntpdate[2190]: adjust time server […]