hello, I set up two ntp server in my network??my all ntp version??ntp-4.2.6p5-3.el6.centos.x86_64
1??my ntp servers ip are 10.2.3.30 and 10.2.4.30??it's configured like below: [root@ntp1 ~]# cat /etc/ntp.conf # For more information about this file, see the man pages # ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5). driftfile /var/lib/ntp/drift statsdir /var/log/ntp/ logfile /var/log/ntp/ntp.log # Permit time synchronization with our time source, but do not # permit the source to query or modify the service on this system. restrict default kod nomodify notrap nopeer noquery restrict -6 default kod nomodify notrap nopeer 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 restrict -6 ::1 # Hosts on local network are less restricted. #restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap restrict 10.0.0.0 mask 255.0.0.0 nomodify # Use public servers from the pool.ntp.org project. # Please consider joining the pool (http://www.pool.ntp.org/join.html). server 0.pool.ntp.org server 1.pool.ntp.org server 2.pool.ntp.org server 3.pool.ntp.org server 127.127.1.0 fudge 127.127.1.0 stratum 10 #broadcast 192.168.1.255 autokey # broadcast server #broadcastclient # broadcast client #broadcast 224.0.1.1 autokey # multicast server #multicastclient 224.0.1.1 # multicast client #manycastserver 239.255.254.254 # manycast server #manycastclient 239.255.254.254 autokey # manycast client # Enable public key cryptography. #crypto includefile /etc/ntp/crypto/pw # Key file containing the keys and key identifiers used when operating # with symmetric key cryptography. keys /etc/ntp/keys # Specify the key identifiers which are trusted. #trustedkey 4 8 42 # Specify the key identifier to use with the ntpdc utility. #requestkey 8 # Specify the key identifier to use with the ntpq utility. #controlkey 8 # Enable writing of statistics records. #statistics clockstats cryptostats loopstats peerstats 2??Other client machines used above ntp is used /etc/ntp.conf??configure like below: [root@S10-2-1-3 ~]# cat /etc/ntp.conf # For more information about this file, see the man pages # ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5). driftfile /var/lib/ntp/drift # Permit time synchronization with our time source, but do not # permit the source to query or modify the service on this system. restrict default kod nomodify notrap nopeer noquery restrict -6 default kod nomodify notrap nopeer 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 restrict -6 ::1 # Hosts on local network are less restricted. #restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap # Use public servers from the pool.ntp.org project. # Please consider joining the pool (http://www.pool.ntp.org/join.html). server ntp1.husor.cn prefer server ntp2.husor.cn #broadcast 192.168.1.255 autokey # broadcast server #broadcastclient # broadcast client #broadcast 224.0.1.1 autokey # multicast server #multicastclient 224.0.1.1 # multicast client #manycastclient 239.255.254.254 autokey # manycast client # Enable public key cryptography. #crypto includefile /etc/ntp/crypto/pw # Key file containing the keys and key identifiers used when operating # with symmetric key cryptography. keys /etc/ntp/keys # Specify the key identifiers which are trusted. #trustedkey 4 8 42 # Specify the key identifier to use with the ntpdc utility. #requestkey 8 # Specify the key identifier to use with the ntpq utility. #controlkey 8 # Enable writing of statistics records. #statistics clockstats cryptostats loopstats peerstats When client machines use i set up the server ntp??the time got wrong??i look up /var/log/message??it likes this: Aug 13 19:15:44 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect -0.155967 s Aug 13 19:50:52 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step -0.193569 s Aug 13 19:50:52 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 13 19:50:53 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 14 02:01:42 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect +0.155451 s Aug 14 02:37:38 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step +0.262107 s Aug 14 02:37:38 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 14 02:37:39 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 14 03:49:19 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect +0.128275 s Aug 14 04:06:32 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step +0.150471 s Aug 14 04:06:32 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 14 04:06:33 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 14 05:19:44 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect +0.152597 s Aug 14 05:37:47 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 14 07:24:28 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect +0.218401 s Aug 14 07:59:30 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step +0.197978 s Aug 14 07:59:30 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 14 07:59:31 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 14 11:33:22 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect -0.160123 s Aug 14 12:08:39 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step -0.183142 s Aug 14 12:08:39 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 14 12:08:40 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 14 21:58:12 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect -0.139479 s Aug 14 22:34:05 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step -0.202018 s Aug 14 22:34:05 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 14 22:34:06 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 15 10:52:56 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect +0.145345 s Aug 15 11:10:55 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step +0.235000 s Aug 15 11:10:55 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 15 11:10:56 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 15 20:37:36 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect -0.131975 s Aug 15 21:11:57 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step -0.159200 s Aug 15 21:11:57 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 15 21:11:58 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 15 22:07:32 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect -0.139116 s Aug 15 22:25:38 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step -0.210902 s Aug 15 22:25:38 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 15 22:25:39 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer Aug 15 23:38:16 V10-2-1-71 ntpd[16969]: 0.0.0.0 0613 03 spike_detect -0.134828 s Aug 15 23:55:59 V10-2-1-71 ntpd[16969]: 0.0.0.0 061c 0c clock_step +0.161490 s Aug 15 23:55:59 V10-2-1-71 ntpd[16969]: 0.0.0.0 0615 05 clock_sync Aug 15 23:56:00 V10-2-1-71 ntpd[16969]: 0.0.0.0 c618 08 no_sys_peer i look ntp log file like this: [root@V10-2-1-71 ~]# cat /var/log/ntp/ntp.log 20 Aug 12:19:55 ntpd[14554]: 0.0.0.0 c016 06 restart 20 Aug 12:19:55 ntpd[14554]: 0.0.0.0 c012 02 freq_set kernel -3.841 PPM 20 Aug 12:23:13 ntpd[14554]: 0.0.0.0 c615 05 clock_sync 20 Aug 12:32:01 ntpd[14554]: 0.0.0.0 0613 03 spike_detect -0.137249 s 20 Aug 12:37:29 ntpd[14554]: 0.0.0.0 0618 08 no_sys_peer 20 Aug 12:42:52 ntpd[14554]: 0.0.0.0 061c 0c clock_step -0.465698 s 20 Aug 12:42:51 ntpd[14554]: 0.0.0.0 0614 04 freq_mode 20 Aug 12:42:52 ntpd[14554]: 0.0.0.0 c618 08 no_sys_peer 20 Aug 12:58:17 ntpd[14554]: 0.0.0.0 c612 02 freq_set kernel -586.374 PPM 20 Aug 12:58:17 ntpd[14554]: 0.0.0.0 c61c 0c clock_step -0.522594 s 20 Aug 12:58:17 ntpd[14554]: 0.0.0.0 c615 05 clock_sync 20 Aug 12:58:18 ntpd[14554]: 0.0.0.0 c618 08 no_sys_peer 20 Aug 13:11:51 ntpd[14554]: 0.0.0.0 0613 03 spike_detect +0.247108 s 20 Aug 13:28:12 ntpd[14554]: 0.0.0.0 061c 0c clock_step +0.174737 s 20 Aug 13:28:12 ntpd[14554]: 0.0.0.0 0614 04 freq_mode 20 Aug 13:28:13 ntpd[14554]: 0.0.0.0 c618 08 no_sys_peer 20 Aug 13:43:52 ntpd[14554]: 0.0.0.0 c612 02 freq_set kernel -461.842 PPM 20 Aug 13:43:52 ntpd[14554]: 0.0.0.0 c615 05 clock_sync 20 Aug 19:48:08 ntpd[14554]: 0.0.0.0 0613 03 spike_detect +1.010504 s 20 Aug 20:05:14 ntpd[14554]: 0.0.0.0 061c 0c clock_step +1.491656 s 20 Aug 20:05:15 ntpd[14554]: 0.0.0.0 0615 05 clock_sync 20 Aug 20:05:16 ntpd[14554]: 0.0.0.0 c618 08 no_sys_peer 20 Aug 20:42:53 ntpd[14554]: 0.0.0.0 c613 03 spike_detect +0.949681 s 20 Aug 21:00:09 ntpd[14554]: 0.0.0.0 c618 08 no_sys_peer 21 Aug 14:24:50 ntpd[14554]: ntpd exiting on signal 15 28 Aug 10:25:48 ntpd[5937]: 0.0.0.0 c016 06 restart 28 Aug 10:25:48 ntpd[5937]: 0.0.0.0 c012 02 freq_set kernel -471.344 PPM 28 Aug 10:29:04 ntpd[5937]: 0.0.0.0 c61c 0c clock_step +0.233855 s 28 Aug 10:29:04 ntpd[5937]: 0.0.0.0 c614 04 freq_mode 28 Aug 10:29:05 ntpd[5937]: 0.0.0.0 c618 08 no_sys_peer 28 Aug 10:44:43 ntpd[5937]: 0.0.0.0 c612 02 freq_set kernel -25.526 PPM 28 Aug 10:44:43 ntpd[5937]: 0.0.0.0 c61c 0c clock_step +0.418623 s 28 Aug 10:44:44 ntpd[5937]: 0.0.0.0 c618 08 no_sys_peer The word of "no_sys_peer" in log,it it irrcorrect ? what's the wrong with my ntp ? I wait for your answer my question , thanks! _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions