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Thread: Synchronization with ntpdate
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- Join Date
- Apr 2010
Synchronization with ntpdate
I'm trying to synchronize a client with an ntpdate server.
The ntp.conf file from the server has the following lines:
# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help
# Enable this if you want statistics to be logged.
statistics loopstats peerstats clockstats
filegen loopstats file loopstats type day enable
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable
# You do need to talk to an NTP server or two (or three).
# Note that "restrict" applies to both servers and clients, so a configuration
# that might be intended to block requests from certain clients could also end
# up blocking replies from your own upstream servers.
# By default, exchange time with everybody, but don't allow configuration.
restrict -4 default kod notrap nomodify noquery
restrict -6 default kod notrap nomodify noquery
# Local users may interrogate the ntp server more closely.
# Clients from this (example!) subnet have unlimited access, but only if
# cryptographically authenticated.
restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
# If you want to provide time to your local subnet, change the next line.
# (Again, the address is an example only.)
# If you want to listen to time broadcasts on your local subnet, de-comment the
# next lines. Please do this only if you trust everybody on the network!
When I try from client #ntpdate 192.168.1.1
the answer is:no server suitable for synchronization found
Even if i try to synchronize from a web server like:
the same answer:no server suitable for synchronization found
Don't know where is the problem.
- Join Date
- Apr 2010
Are you able to ping pool.ntp.org ?
[root@server ~]# ntpdate pool.ntp.org
15 Apr 20:25:00 ntpdate: adjust time server 184.108.40.206 offset 0.006033 sec
[root@server ~]# ping pool.ntp.org
PING pool.ntp.org (220.127.116.11) 56(84) bytes of data.
64 bytes from mail.freerip.com (18.104.22.168): icmp_seq=1 ttl=52 time=21.4 ms
64 bytes from mail.freerip.com (22.214.171.124): icmp_seq=2 ttl=52 time=21.6 ms
64 bytes from mail.freerip.com (126.96.36.199): icmp_seq=3 ttl=52 time=21.6 ms
--- pool.ntp.org ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2531ms
rtt min/avg/max/mdev = 21.461/21.576/21.663/0.146 ms
Do you know for sure that an ntp daemon (ntpd) is running on the 192.168.1.1 machine ? That is in the private non-routable ip-block.