Linux system hangs giving ntp errors

 
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Operating Systems Linux Red Hat Linux system hangs giving ntp errors
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Old 01-21-2011
Linux system hangs giving ntp errors

Hi folks,
I am facing issue of my system (host1) getting hanged after throwing following ntpd messages. I am not able to ssh to the server there after. only option is to restart the host:
Dec 29 02:58:51 host1 ntpd[991]: time reset -0.207907 s
Dec 29 02:58:51 host1 ntpd[991]: synchronisation lost
Dec 29 04:20:20 host1 ntpd[991]: time reset 1.018233 s
Dec 29 04:20:20 host1 ntpd[991]: synchronisation lost
Dec 29 04:35:44 host1 ntpd[991]: time reset -0.468052 s
Dec 29 04:35:44 host1 ntpd[991]: synchronisation lost
Dec 29 08:27:47 host1 ntpd[991]: time reset 0.249744 s
Dec 29 08:27:47 host1 ntpd[991]: synchronisation lost
Dec 29 11:42:50 host1 syslogd 1.4.1: restart.
Dec 29 11:42:50 host1 syslog: syslogd startup succeeded

I checked the time of my client(host1) which is getting hanged and the ntp server and found that both are having same time.
ntpq -p output gives following:
[root@host1 log]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
*server1.example.c server02.exampl 4 u 976 1024 377 0.701 10.092 0.886

[root@host1 log]# ntpstat
synchronised to NTP server (172.15.16.167) at stratum 5
time correct to within 99 ms
polling server every 1024 s

Please advice. Thanks in advance.
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SSH-COPY-ID(1)						    BSD General Commands Manual 					    SSH-COPY-ID(1)

NAME
ssh-copy-id -- copy public keys to a remote host SYNOPSIS
ssh-copy-id [-lv] [-i keyfile] [-o option] [-p port] [user@]hostname DESCRIPTION
The ssh-copy-id utility copies public keys to a remote host's ~/.ssh/authorized_keys file (creating the file and directory, if required). The following options are available: -i file Copy the public key contained in file. This option can be specified multiple times and can be combined with the -l option. If a private key is specified and a public key is found then the public key will be used. -l Copy the keys currently held by ssh-agent(1). This is the default if the -i option was not specified. -o ssh-option Pass this option directly to ssh(1). This option can be specified multiple times. -p port Connect to the specified port on the remote host instead of the default. -v Pass -v to ssh(1). The remaining arguments are a list of remote hosts to connect to, each one optionally qualified by a user name. EXIT STATUS
The ssh-copy-id utility exits 0 on success, and >0 if an error occurs. EXAMPLES
To send a specific key to multiple hosts: $ ssh-copy-id -i /path/to/keyfile.pub user@host1 user@host2 user@host3 HISTORY
The ssh-copy-id utility was written by Eitan Adler <eadler@FreeBSD.org> as a drop-in replacement for an existing utility included with OpenSSH. BSD
February 28, 2014 BSD