Skip to content
Log In

Install the ntp service

An XCCDF Rule

Description

The ntpd service should be installed.

Rationale

Time synchronization (using NTP) is required by almost all network and administrative tasks (syslog, cryptographic based services (authentication, etc.), etc.). Ntpd is regulary maintained and updated, supporting security features such as RFC 5906.

ID
xccdf_org.ssgproject.content_rule_package_ntp_installed
Severity
High
References
Updated

Remediation Templates

Anaconda Pre-Install Instructions

package --add=ntp

OS Build Blueprint

[[packages]]
name = "ntp"
version = "*"

An Ansible Snippet

- name: Ensure ntp is installed
  package:
    name: ntp
    state: present
  when: ansible_virtualization_type not in ["docker", "lxc", "openvz", "podman", "container"]
  tags:

A Shell Script

# Remediation is applicable only in certain platforms
if [ ! -f /.dockerenv ] && [ ! -f /run/.containerenv ]; then
if ! rpm -q --quiet "ntp" ; then
    yum install -y "ntp"
fi

A Puppet Snippet

include install_ntp
class install_ntp {
  package { 'ntp':
    ensure => 'installed',
  }
}