What is a time server?
A time server is a device that receives and distributes a single time source via a computer network for the purposes of time synchronization. These devices are often referred to as an NTP server or network server, or time and atomic clock servers.
And NTP?
NTP - Network Time Protocol is a set of software instructions to transfer and synchronize time over LANs (Local Area Network) or WAN (Wider Area Network). NTP is one of thethe oldest-known protocols in use today and is by far the most widely used time synchronization application.
In what time frame should I use?
Coordinated Universal Time (UTC) is a global time scale, the time told by atomic clocks. UTC does not take into account time zones and is therefore ideal for network applications such as the principle according to synchronize in a network clock, you are in effect synchronize it with any other network that uses Clock.
Where does an NTPServer time out?
A NTP server can use the time from any place as a wristwatch or wall clock. But would any rational network administrator choose to use a source of UTC time to the network is guaranteed to be as precise as possible. UTC is prepared from several sources. The most commonly used is probably the Internet. There are many "time servers" on the Internet that sell to UTC time. Unfortunately, many are not really into with an Internet time sourceYou could leave the country vulnerable to the network as malicious users can take advantage of the open port in the firewall, if the timing of information.
It's much better to own NTP server UTC time signal outside the network and firewall receives applications. The best ways to do this is either the use of GPS signals from space, or the national time and frequency broadcasts transmitted by several countries in the long-wave broadcast.
0 ความคิดเห็น:
แสดงความคิดเห็น