To build a stratum NTP server, you need a specific timetable external reference. Many calendar references are available, most use the GPS or nationales time and frequency radio sources such as WWVB, DCF77 and MSF. The Global Positioning System (GPS) is a great moment of reference because it is available worldwide and equipment necessary to receive time and positioning information is very low cost. How to build and configure a server NTP
NTP is available as source code for compilation and configuration on a Linux machine. The source code freely available on the website NTP.org. Most Linux installations, such as SuSE and Fedora NTP provide pre-installed. Many other Linux DISTO provide NTP as an RPM.
NTP is a protocol used the Internet to disseminate time around computer networks to the guest network. NTP server provides a network with highly accurate time source. With the addition of a GPS or clock radio, you can provide your network with a precise timetable of reference.
Many GPS systems provide a serial port that can be connected to a serial port. The receiver generally provides continuous time information and positioning in a standard format known as the NMEA. NTP server can use the calendar information provided by a receiver NMEA as a precise timetable of reference. Some GPS receivers also provide a high-precision pulse per second (PPS) output that can be used as a very precise reference. While the timing of pulses generated by a GPS receiver May need to be converted into a usable signal RS232 level. A TTL level pulse output can be converted to RS232 levels by feeding a driver RS232. How to build and configure a server NTP
Once you have your external NTP server reference clock set up and installed, you must set the clock in the configuration file NTP "ntp.conf". This involves finding in general and specifying the reference d 'clock code to reference your calendar. Once configured, your NTP server will act as a source of accurate time in your network of customers time.
Most modern computers operating systems can use NTP to synchronize the time. Linux and Unix machines can use the distribution itself NTP. Modern operating systems such as Windows XP and 2003 pre-installed SNTP clients can point to the IP address or DNS name of an NTP server for synchronization. Many network devices such as routers and switches can also use your NTP server for synchronization.
There are many available radio receivers that receive national transmitted time and frequency information. WWVB is a U.S. radio time and frequency of transmission, DCF77 is transmitted from Germany, MSF is available throughout the UK. The advantage of a radio signal as a reference clock for your NTP server is that you can usually get a good signal inside, near the NTP server. However, GPS requires an antenna with a good view of the sky.
D. Evans is an experienced technical author of the computer timing and the telecommunications industry. David has provided technical resources for drafting many manufacturers of NTP server computer and solutions providers calendar. Click here for more information on NTP server solutions.
This article explains how to create and configure your own stratum NTP server. By adding a relatively cheap GPS receiver or radio time standards to your Linux box, you can have your own NTP server specific. Your NTP server can be used to synchronize all machines on your network at the exact time.
Related items
Article Source : How to build and configure a server NTP
Post a Comment