北邮网络时钟(NTP)服务器

这个命令只是一次校对时间，在linux下面配置相对windows复杂一些。 首先要确认已经安装ntp的组件，以redhat为例可以用rpm -q ntp查询 是否已经安装，如果没有安装可以用rpm包直接安装，安装完毕后可以 首先使用ntpdate命令进行一次简单的同步，然后修改/etc/ntp.conf 配置文件，然后执行/etc/init.d/ntpd start命令启动服务，并且将该 服务器设置为开机自己启动就可以了。下面是一个简单的配置文件的例子 //////////////////////////////////////////////////////////////// # Permit time synchronization with our time source, but do not # permit the source to query or modify the service on this system. #restrict default nomodify notrap noquery # Permit all access over the loopback interface. This could # be tightened as well, but to do so would effect some of # the administrative functions. #restrict 127.0.0.1 # -- CLIENT NETWORK ------- # Permit systems on this network to synchronize with this # time service. Do not permit those systems to modify the # configuration of this service. Also, do not use those # systems as peers for synchronization. # restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap # --- OUR TIMESERVERS ----- #server 0.pool.ntp.org #server 1.pool.ntp.org #server 2.pool.ntp.org # --- NTP MULTICASTCLIENT --- #multicastclient # listen on default 224.0.1.1 # restrict 224.0.1.1 mask 255.255.255.255 nomodify notrap # restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap # --- GENERAL CONFIGURATION --- # # Undisciplined Local Clock. This is a fake driver intended for backup # and when no outside source of synchronized time is available. The # default stratum is usually 3, but in this case we elect to use stratum # 0. Since the server line does not have the prefer keyword, this driver # is never used for synchronization, unless no other other # synchronization source is available. In case the local host is # controlled by some external source, such as an external oscillator or # another protocol, the prefer keyword would cause the local host to # disregard all other synchronization sources, unless the kernel # modifications are in use and declare an unsynchronized condition. # server 202.112.10.36 # local clock #fudge 127.127.1.0 stratum 10 # # Drift file. Put this in a directory which the daemon can write to. # No symbolic links allowed, either, since the daemon updates the file # by creating a temporary in the same directory and then rename()'ing # it to the file. # driftfile /var/lib/ntp/drift broadcastdelay 0.008 # # Keys file. If you want to diddle your server at run time, make a # keys file (mode 600 for sure) and define the key number to be # used for making requests. # # PLEASE DO NOT USE THE DEFAULT VALUES HERE. Pick your own, or remote # systems might be able to reset your clock at will. Note also that # ntpd is started with a -A flag, disabling authentication, that # will have to be removed as well. # keys /etc/ntp/keys 【 在 i3 (木木三) 的大作中提到: 】 : linux下执行： : #ntpdate 202.112.10.36