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NTP requirement for Terabithia xymon RPM - RHEL/CentOS 7?

2 messages in this thread

list Mike Burger · Thu, 16 Aug 2018 11:47:58 -0400 ·
Good morning,

I'm installing Xymon on an Amazon Linux 2 instance (RHEL/CentOS 7
equivalent) and noticed that, although Chrony is installed on the
instance, the ntp and ntpdate packages were installed as pre-reqs for
the JC's xymon package.

I was just wondering: 

 	* Why is ntp/ntpdate a requirement for the Xymon package?
 	* Does Chrony not have equivalent functionality?

Thanks.
-- 
Mike Burger
http://www.bubbanfriends.org

"It's always suicide-mission this, save-the-planet that. No one ever
just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1
list Brian Scott · Sat, 18 Aug 2018 12:33:26 +1000 ·
Hi,

The ntp test uses the ntpdate command:
Command: ntpdate -u -q -p 1 192.168.192.1 2>&1

server 192.168.192.1, stratum 3, offset 0.000055, delay 0.02580
18 Aug 12:19:03 ntpdate[75689]: adjust time server 192.168.192.1 offset 0.000055 sec
It shouldn't matter if the system is using chrony for timekeeping
because ntpdate with '-q' is a simple ntp protocol query that doesn't
attempt to change anything.

You may be able to cook something up with the chronyd command using the
option '-Q' but it looks quite messy to do.

Cheers,

Brian
quoted from Mike Burger


On 17/8/18 1:47 am, Mike Burger wrote:
Good morning,

I'm installing Xymon on an Amazon Linux 2 instance (RHEL/CentOS 7
equivalent) and noticed that, although Chrony is installed on the
instance, the ntp and ntpdate packages were installed as pre-reqs for
the JC's xymon package.

I was just wondering:

  * Why is ntp/ntpdate a requirement for the Xymon package?
  * Does Chrony not have equivalent functionality?

Thanks.
-- 
Mike Burger
http://www.bubbanfriends.org

"It's always suicide-mission this, save-the-planet that. No one ever
just stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1