TMA-ROS1-2.2.1.1

Ensure time synchronization is in use

中等級 1自動化ros

說明

System time should be synchronized between all systems in an environment. This is typically done by establishing an authoritative time server or set of servers and having all systems synchronize their clocks to them. The audit requires systemd-timesyncd enabled or the chrony or ntp package installed (host-based VM time sync must be verified manually). Host-level control from the CIS ROS Melodic benchmark (Ubuntu 18.04 robot hosts); run as root.

檢查方式

稽核方法: Shell 指令

shell

s=$(systemctl is-enabled systemd-timesyncd 2>/dev/null)
[ "$s" = enabled ] && { echo compliant; exit 0; }
command -v dpkg-query >/dev/null 2>&1 || exit 1
for p in chrony ntp; do s=$(dpkg-query -W -f='${Status}' "$p" 2>/dev/null); case "$s" in *' installed') echo compliant; exit 0 ;; esac; done
echo 'no time synchronization (systemd-timesyncd, chrony or ntp) in use'

預期輸出: compliant

修補方式

修補方法: 操作指南或基礎設施修補檔

On systems where host based time synchronization is not available, configure systemd- timesyncd. If "full featured" and/or encrypted time synchronization is required, install chrony or NTP. To install chrony: # atp install chrony To install ntp: # apt install ntp On virtual systems where host based time synchronization is available consult your virtualization software documentation and setup host based synchronization.

屬性

作業系統: 不限
標籤: rosros1melodicservices
參考資料: CIS ROS Melodic Benchmark v1.0.0 - 2.2.1.1 Ensure time synchronization is in use

檢查此主機

請在您有權稽核的機器上執行此指令。掃描為唯讀操作。

shell

tmaegis scan --target ros