Centos5.6 installing the NTP server requires time synchronization between several servers for some services and experiments. Therefore, you have the prerequisites for building NTP. the specific steps are as follows: 1. install the ntp service yuminstallntp. I *-y2, modify/etc/ntp. confrestrictdefaultkodnomodi...
The installation of the NTP server on centos 5.6 requires time synchronization between some services and multiple machines in the experiment. Therefore, the prerequisites for building NTP are as follows: 1. install the ntp service yum install ntp. I *-y2, modify/etc/ntp. confrestrict default kod nomodify notrap nopeer noquery # restrict-6 default kod nomodify notrap nopeer noquery # for ipv6 # This is the default ntp setting www.2cto.com # Allow all local operations restrict 127.0.0.1 restrict-6 :: 1 # allowed local network segments restrict 10.0.0.0 mask 255.0.0.0 nomodify motraprestrict 192.168.0.0 mask 255.255.0.0 nomodify motrap # use the upper-layer internet ntp server restrict mask 255.255.255.255 nomodify notrap noqueryserver Protocol # communication takes the local time as the standard time server 127.127.1.0 # local clockfudge 127.127.1.0 stratum 10 # calculate the frequency error between the ntp server and the upper ntpserver driftfile/var/lib/ntp/drift # Key file containing keys and key identifiers used when operating # with your Ric key cryptography. keys/etc/ntp/keys # log file logfile/var/log/ntp. log # Description: restrict <子网掩码> | <网段> <子网掩码> [Ignore | noquery | notrap | nomodiy | notrust | nokod] ignore: disables all ntp services www.2cto.com noquery: does not provide ntp service notrap: does not provide trap remote event login function nomodiy: it indicates that the client cannot change the time parameter of the ntp server, but can use the ntp server for time correction notrust: refuse the client nokod: kod that has not passed the authentication can organize a dos attack 2, modify the/etc/ntp/step-tickers file 207.46.232.182127.127.1.0 # When the ntp server is started, it automatically verifies the time with the recorded ip address in this file. 3, modify/etc/sysconfig/ntpdSYNC_HWCLOCK = YES # Allow the BIOS to synchronize time with the system. 4. set the client slightly.
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