Cloud Virtual Machine
- Release Notes and Announcements
- Announcements
- Product Introduction
- Image
- Public Image
- TencentOS Server
- Network and Security
- OPS and Monitoring
- Purchase Guide
- Purchasing Instances
- Purchasing Cloud Disks
- Purchasing Reserved Instances
- Purchasing Public Network Bandwidth
- Getting Started
- Operation Guide
- Convenience Features
- Instances
- Creating Instances
- Logging In to Linux Instances
- Logging in to Windows instance
- Adjusting Configuration
- View Instance Details
- Managing Instance IPs
- Terminating/Returning Instances
- Reserved Instances
- Images
- Importing Images
- CentOS Linux Operations
- Migrating Servers
- Online Migration
- Migration Operation Guide
- Maintenance Tasks
- Networking
- Security
- Security Groups
- Managing Security Groups
- Managing Security Group Rules
- Monitoring and Alarms
- Practical Tutorial
- Building an Environment
- Setting up LNMP
- Setting up LAMP manually
- Setting up Java Web
- Setting up Node.js
- Manual Setup of WIPM Environment
- Building a Website
- Discuz! Forum
- Building an Application
- Setting Up FTP Site
- NTP Service
- Building a Visual GUI
- Uploading Local Files to CVM
- High-throughput Network Performance Test
- Operations Guide
- Initializing Data Disks
- Environment Configurations
- Installing Software
- Work with Operating Systems
- Troubleshooting
- Instance-Related Failures
- Windows Instance Login Failures
- Linux Instance Login Failures
- Linux CVM Memory Issues
- API Documentation
- Region APIs
- Instance APIs
- Cloud Hosting Cluster APIs
- Image APIs
- Instance Launch Template APIs
- Making API Requests
- Placement Group APIs
- Key APIs
- Security Group APIs
- Network APIs
- FAQs
- Billing
- Instance
- Storage
- Images
- OPS & Monitoring
- Related Agreement
DocumentationCloud Virtual MachineOperations GuideInstalling SoftwareInstalling chronyd Service on CentOS 8
Installing chronyd Service on CentOS 8
Last updated: 2024-01-06 17:38:11
Overview
Currently, native CentOS 8 does not support setting the NTP service. Instead, you need to use chronyd to deliver accurate time. This document describes how to install and configure chronyd on a CentOS 8-based Tencent Cloud CVM instance.
Directions
Installing and configuring the chronyd service
2. Run the following command to install the chronyd service.
yum -y install chrony
3. Run the following command to modify the
chrony.conf configuration file.vim /etc/chrony.conf
4. Press i to enter the edit mode, and append the following content to the next line of
#log measurements statistics tracking.server time1.tencentyun.com iburstserver time2.tencentyun.com iburstserver time3.tencentyun.com iburstserver time4.tencentyun.com iburstserver time5.tencentyun.com iburst
The result should be as follows:
5. Press Esc and enter :wq to save and close the file.
6. Run the following commands in sequence to enable chronyd autostart and restart it.
systemctl restart chronyd
systemctl enable chronyd
Verifying the configurations
1. Run the following command to check whether the clock is synced.
date
2. Run the following command to check the clock source status.
chronyc sourcestats -v
If a result similar to the following is returned, the configuration was successful.
Appendix
Commands
Command | Description |
chronyc sources -v | Check the clock source. |
chronyc sourcestats -v | Check the clock source status. |
timedatectl set-local-rtc 1 | Set the real time clock. The default format is UTC. |
timedatectl set-ntp yes | Enable the NTP service for synchronization. |
chronyc tracking | Calibrate the NTP server. |
chronyc -a makestep | Force synchronization of the system clock. |
Was this page helpful?
You can also Contact Sales or Submit a Ticket for help.
Yes
No