I need to know if current date/time is reliable in a small embedded Linux system Busybox-based. I have Busybox ntpd running, but apparently there is no program to to query status.
Before moving forward, make sure your OpenWRT router is an NTP Server and not just an NTP Client, for this, log into your OpenWRT Console, go to System, then System again, and open Time Synchronization and check the Provide NTP Server. Many, but not all, Network Time Protocol (NTP) servers also serve Time on port 37. There is a list of NTP servers here  The National Institute of Standards and Technology (United States Gov't) offers about a dozen Time servers to the public. Their server list is available here  Here is a list of working servers (at this moment): Download ntpdate_4.2.8p11-1_x86_64.ipk for OpenWrt 18.06 from OpenWrt Packages repository. the system clock with remote NTP time servers and run/monitor local NTP Jul 24, 2020 · The number of NTP pool server IPs is 3,758 (1,028 IPv6 and 2,730 IPv4) distributed across 97 economies and regions around the world. They are mainly concentrated in economies with well developed networks, such as the United States, Germany, France, Britain, and the Netherlands. Together, these five economies account for 55% of NTP servers.
OpenWrt supports both NTP client protocol (to synchronize local time with a distant clock) and NTP server protocol (to deliver time to your local network). The ntp configuration is located in system uci subsystem, and found in file /etc/config/system .
Sep 30, 2019 · synchronised to NTP server (184.108.40.206) at stratum 3 time correct to within 42 ms polling server every 1024 s Use the echo command to display exit status of ntp client: $ echo $? Sample outputs: 0 Checking the status of NTP with ntpq command. The ntpq utility program is used to monitor NTP daemon ntpd operations and determine performance. The following servers support only authenticated NTP requests using the symmetric key encryption method that is defined in the NTP documentation. They do not respond to requests for time in the DAYTIME or TIME formats and will not accept anonymous ftp connections. So if i were to do a whois on each of these servers (0.openwrt.pool.ntp.org = 220.127.116.11 for example) would I be safe in assuming these are static for the forseeable future? Or am I eventually going to run into issues in doing so.
Sorry for my lack of knowledge, I would like to configure openwrt to get the NTP server using DHCP. I am using Backfire (10.03.1, r29592) AR71xx in a Nanostation Loco M2.
Servers should use UTC in order to simplify server management; especially when you are managing resources across multiple time zones. Furthermore ntp knows nothing about time zones, ntp strictly deals in UTC. In most cases it's best to use pool.ntp.org to find an NTP server (or 0.pool.ntp.org, 1.pool.ntp.org, etc if you need multiple server names). The system will try finding the closest available servers for you. If you distribute software or equipment that uses NTP, please see our information for vendors. NTP on 301-moved.de You may have reached this site because you followed an IP address that points to one of my public NTP servers. If you see traffic on Port 123/UDP on your firewall/router towards one of the listed IP addresses below, these devices are using the public NTP pool for time synchronization.