{"description": "To specify a remote NTP server for time synchronization, edit\nthe file <tt>/etc/ntp.conf</tt>. Add or correct the following lines,\nsubstituting the IP or hostname of a remote NTP server for <em>ntpserver</em>:\n<pre>server <i>ntpserver</i></pre>\nThis instructs the NTP software to contact that remote server to obtain time\ndata.", "rationale": "Synchronizing with an NTP server makes it possible\nto collate system logs from multiple sources or correlate computer events with\nreal time events.", "severity": "medium", "references": {"cis-csc": ["1", "14", "15", "16", "3", "5", "6"], "cobit5": ["APO11.04", "BAI03.05", "DSS05.04", "DSS05.07", "MEA02.01"], "isa-62443-2009": ["4.3.3.3.9", "4.3.3.5.8", "4.3.4.4.7", "4.4.2.1", "4.4.2.2", "4.4.2.4"], "isa-62443-2013": ["SR 2.10", "SR 2.11", "SR 2.12", "SR 2.8", "SR 2.9"], "iso27001-2013": ["A.12.4.1", "A.12.4.2", "A.12.4.3", "A.12.4.4", "A.12.7.1"], "nist": ["CM-6(a)", "AU-8(1)(a)"], "nist-csf": ["PR.PT-1"], "pcidss": ["Req-10.4.1", "Req-10.4.3"], "pcidss4": ["10.6.2", "10.6"]}, "control_references": {"pcidss4": ["10.6.2", "10.6"]}, "components": [], "identifiers": {}, "ocil_clause": "this is not the case", "ocil": "To verify that a remote NTP service is configured for time synchronization,\nopen the following file:\n<pre>/etc/ntp.conf</pre>\nIn the file, there should be a section similar to the following:\n<pre>server <i>ntpserver</i></pre>", "oval_external_content": null, "fixtext": "", "checktext": "", "vuldiscussion": "", "srg_requirement": "", "warnings": [], "conflicts": [], "requires": [], "policy_specific_content": {}, "platform": "package[ntp]", "platforms": ["package[ntp]"], "sce_metadata": {}, "inherited_platforms": ["system_with_kernel"], "cpe_platform_names": ["package_ntp"], "inherited_cpe_platform_names": ["system_with_kernel"], "bash_conditional": null, "fixes": {}, "title": "Specify a Remote NTP Server", "definition_location": "/aptdata/openscap/scap-security-guide/linux_os/guide/services/ntp/ntpd_specify_remote_server/rule.yml", "template": null}