linux????????NTP??????????
???????????? ???????[ 2013/8/16 13:31:55 ] ????????
???????
????ntp???udpЭ?飬????????123????
???????NTPD
????????NTP??????????????????????????????У?
????#chkconfig ntpd on
???????ntpd??
????service ntpd start
????NTP??????????
????????????????“ntpdate ??????IP”????????
????????????crond???????????
??????root?????????????????
????[root@supersun root]# crontab -e
?????????????????15?????????????
????15 * * * * ntpdate ??????IP
?????????ntpdate?????????ntp??????У????????????????????
????????????????????????????????
???????????????????????????????????
????#ntpq -p
????????????????????????????????????????????jitter???4000????delay??reach?????0??
?????????????У?
?????з???????????server??????????123???????????????
???????????????NTP????????????3??5?????????????server????????????????????????????????“ntpdate ??????ip”??????????
????27 Jun 10:20:17 ntpdate[21920]: no server suitable for synchronization found
????Network Time Protocol(NTP?????????Э??)????????????п???????????NTP??????????????????????????????NTP?????????????????????????????????????????п?????????????
??????????????????????????????е????????????????????????????????й?????????????????????????????????????????????????У????????????????????????????????????????????????????????????????
??????? ????Linux??ntp????????
????1. ?????????
???????linux???????ж???????ntp??????????????ɡ???????????????
#/tmp/wget http://ntp.buptnet.edu.cn/ntp_chinese/down/server/ntp-4.2.0.tar.gz
# tar -zxvf ntp-4.2.0.tar.gz –C /usr/local/src;cd /usr/local/src/ntp-4.2.0
????2. ????趨???????????????
#./configure --prefix=/usr/local/ntp --enable-all-clocks --enable-parse-clocks
make clean ; make
make check
make install
?????????ɡ?
???????????NTP????????????
????1??NTP?????????????????
????NTP?????????????????????????1 ??
??????1 NTP????????????
?????? NTP ????????й??????????????????????2 ??
??????2 ?? NTP ????????й????????
?????????Linux ??????????????????????Windows????????? Windows????????Linux????????????(System Clock)?????(Real Time Clock?????RTC)???????????????????Linux Kernel?е????????????????????????????????????????????????????????BIOS??“Standard BIOS Feture”???н??????á???Linux???????????????????????????????????????????????????
??????
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2023/3/23 14:23:39???д?ò??????????
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