A:10.240.210.233
B:10.240.180.171
C:10.240.210.60
A机器(ntp服务器端)
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1
2
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root@samba ~$ntpq -c version
ntpq 4.2.6p5@1.2349-o Fri Jul 24 10:56:21 UTC 2015 (1)
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B机器(客户端,centos5.5) 同步失败
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1
2
3
4
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root@extmail ~$ntpq -c version
ntpq 4.2.2p1@1.1570-o Sat Dec 20 02:52:15 UTC 2014 (1)
root@extmail ~$ntpdate 10.240.210.233
21 Aug 15:27:05 ntpdate[20107]: no server suitable
for
synchronization found
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C机器(客户端，centos6.6) 执行成功
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1
2
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4
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root@oldboy ~$ntpq -c version
ntpq 4.2.6p5@1.2349-o Mon Mar 16 14:53:07 UTC 2015 (1)
root@oldboy ~$ntpdate 10.240.210.233
21 Aug 15:21:50 ntpdate[10574]: adjust
time
server 10.240.210.233 offset -0.008637 sec
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总结，B机器同步失败可能是ntp版本较低，可尝试将其版本升级，或降低服务器(A机器)的NTP版本。
【附】
ntp配置文件
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root@samba ~$egrep -v "#|^\s*$" /etc/ntp.conf
指定NTP服务器日志文件
logfile /var/log/ntp
driftfile /var/lib/ntp/drift
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
restrict 127.0.0.1
restrict -6 ::1
restrict 10.240.210.0 mask 255.255.255.0 nomodify notrap
server tiger.sina.com.cn prefer
server 202.112.10.36
restrict 202.112.10.36 nomodify notrap noquery
server 127.127.1.0
fudge 127.127.1.0 stratum 10
includefile /etc/ntp/crypto/pw
keys /etc/ntp/keys
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本文转自 xoyabc 51CTO博客，原文链接：http://blog.51cto.com/xoyabc/1686868，如需转载请自行联系原作者
