ntp gps

For the original article, see Day 03: GPS CompassRequirement Use GPS information to display the compass.Implementation The GPS compass displays the azimuth of the current position on the UI. This information is included in the NMEA output by the GPS receiver. The eighth field stored in gprs mc.$ Gprs mc, 015834, A, 374

CentOS 6.5 64-bit installation of ntp 4.2.7p425 tutorialObviously, if you want to upgrade the NTP server to 4.2.7p26, you can only compile and install the ntp 4.2.7p425 for the development version.To verify this solution, I compiled and installed the development version ntp in CentOS, But I encountered many problems wh

Today there is a small project, completely self-made, originally thought very simple NTP service, I give toss for 2 hours only to support the head (formerly are operations, not too much attention, so this technology, in simple all need to kiss taste AH), here records for the future do not waste time. Target environment, 5 Linux CentOS 6.3, one as NTPD service and external public NTP service synchronization

Turn from: https://zhuanlan.zhihu.com/p/32638633 In the last share, I made an introduction to the technical framework of Baidu Apollo plan, as shown in the picture. Apollo1.0 automatic driving on closed site If you want to complete the Apollo 1.0 "closed site tracking Automatic driving" function, we need to solve an important problem: I (unmanned vehicle) where. "Where I am" is completely dependent on the GPS (Global Positioning System) and IMU (ine

ObjectiveNTP, Network Time Protocol, is a protocol that is used to synchronize the time of each computer in a network. The consistency and accuracy of time is important, whether it is a private computer or a server cluster that is built at work. In this paper, our company's NTP configuration practice process as an example, the process itself is not complex, the principle part please refer to the extended reading. Time synchronization is reall

In the network world, time synchronization is very important, sometimes strange problems, often may be caused by time synchronization problems, and the global total of 24 time zones, so need NTP server to synchronize the time of each region. There is also a hardware time on the computer, that is, the CMOS clock, in the Windows system, the system starts directly from the COMs clock reading time, closed to the CMOS to write, so as to maintain the consis

First, build preparation1. Determine your time zone#date命令可以查看当前系统时间, China's time zone is CST. To configure the time zone using the Tzselect command 650) this.width=650; "border=" 0 "src="/e/u261/themes/default/images/spacer.gif "style= " Backgroun D:url ("/e/u261/lang/zh-cn/images/localimage.png") no-repeat center;border:1px solid #ddd; "alt=" Spacer.gif "/>Configuration file Modification:/etc/sysconfig/clock2. Check NTP service Program#rpm-qa |gre

First, the NTP principle of the timeThe direction of NTP synchronization is to propagate from a node with a smaller stratum value to a larger node, and if an NTP client receives a stratum larger than itself, the NTP client thinks its time is more accurate than the time it received and does not update the time.For most

We all come to learn the first service, NTP time server. Learning Services first to know what this service is mainly to do, how to install, how to configure, and then start. Once we know this, we'll build the NTP service.1. What does the NTP service do primarily? A: NTP (Network time Protocol) is a protocol used to syn

Original site: http://www.cnblogs.com/magicboy110/archive/2010/12/09/1901669.htmlThere are many professional materials about GPS theory on the network, and this paper tries to introduce the basic principle of GPS positioning in a way that programmers can easily understand, hoping to enlighten the friends who do GPS development. Of course, this article does not i

How to detect NTP amplification Attack Vulnerability 0x00 Introduction NTP amplification attacks are actually DDoS attacks. Through the NTP server, a small request can be converted into a large response, which can direct to the victim's computer. NTP amplification uses the MONLIST command. The MONLIST command causes t

I. Installing the NTP software 1. Check if the NTP-related package is installed.Rpm-qa | grep NTP 2. Install NTP software.Yum-y Install NTP Two. Parameter explanation Ignore: Turn off all NTP Online Services Nomodify: The cli

ObjectiveIn the world of computers, time synchronization is extremely important for co-ordination between computers, and it takes time to synchronize our high availability clusters, load balancing, DNS services, and so on. NTP (Network time Protocol) is a protocol used to synchronize the time of each computer in a network. Its purpose is to synchronize the computer clock to the World coordinated UTC, its accuracy in the LAN up to 0.1ms, in most places

GPS intermediate driver Since the introduction of GPS intermediate driver (gpsid) in Windows Mobile 5.0, it has developed a global positioning system (GPS) windows Mobile applications become much simpler. The reason is that it adds an intermediate layer between the application program compiled by the developer and the GPS