Re: How to keep sensors in sync using NTP?

[spy guy <spyguy703 () earthlink net>]

I believe the tool you should use is ntpdate. Its an ntp client. 

I run a cron job at midnight that executes ntpdate against an ntp
server. 

check the man page for ntpdate syntax 
in its simplest form: 

`ntpdate time.nist.gov`  will sync your clock with time.nist.gov 

hope that helps. 

On Tue, 2002-10-15 at 05:56, Bruno Sicchieri wrote: 
> Hi all,
>
> I´ve just installed Snort, MySQL and ACID on Redhat7.3 following the Snort 
> Installation Manual, by Steven J. Scott 
> (http://home.earthlink.net/~sjscott007/)
>
> In one of the sections (Network Time Protocol - NTP) he explain how to 
> keep accurate time on the sensors (Snort) without having to manually set 
> the clocks, using NTP:
>
> 1) Editing the /etc/ntp.conf file and changing the server entry to reflect 
> my timeserver and comment out the entry starting with "fudge"
> ------ntp.conf------
> server mytimeserver.com
> #fudge 127.127.1.0 stratum 10
> --------------------
>
> 2) # /etc/rc.d/init.d/ntpd start
> 3) # chkconfig ntpd on
>
> I´m using "ntp-4.1.1" and writing 
> from "/usr/share/zoneinfo/America/Sao_Paulo" with "UTC=true" 
> in /etc/sysconfig/clock file.
>
> Everything looks OK but the sensors stay 2 hours in advance. I already 
> read the NTP manual but I still can´t figure out what is happen.
>
> Anyone could help please?
>
> Thanks, Bruno.