Re: HMC and SNTP

[rob@xxxxxxxxx]

>From IBM:

Right click on the blue background of the HMC.  Select Terminals, rshterm.

Rob,  Here is some info on the SNTP setup for the HMC. Use the MAN pages 
for any explanation of the commands. Also you will want to check the 
firewall on ETH1 and make sure that NTP is allowed. 

To enable Network Time Protocol service (start the daemon on each boot) 
       chhmc -c xntp -s enable 

To add a Network Time Protocol server to the configuration file: 
       chhmc -c xntp -s add mytimeserver.company.com 

       Specify the hostname will not change firewall rule settings. It is 
assumed  that 
       the user will use the Customize Network Settings to change firewall 
settings. 
-or- 
To add a Network Time Protocol server to the configuration file, using IP 
address 
       and at the same time enable firewall access through network 
interface eth0: 

       chhmc -c xntp -s add -a 10.10.10.32 -i eth0 
<Rob's notes>.  I didn't use the -i eth0.  I stopped after the IP address 
we use.</Rob's notes>

        Note:  Normally it is eth1 that is on the open network.  Also, if 
you do not specify the eth0, use the customize network settings, lan 
adapters, Details, firewall tab to enable NTP. 

reboot the hmc after running each command to make sure daemon starts with 
the updated configuration file. 


3) Verification 
hscroot does have read access to the configuration files.  If you are 
interested , you can use ls, cat, tail commands to view directories and 
files such as /etc/ntp.conf and /var/log/ntp or var/log/messages.  For 
larger files, "cat" isn't practical but you can use scp or the sendfile 
command to copy the file off or pipe the output of cat run in an external 
ssh session so another editor can be used. 

for example you can use
cat /etc/ntp.conf
to verify the NTP server name/ip address. 

You can use 
cat /var/log/ntp
and 
cat/var/log/messages
to verify that the daemon started, the NTP server was contacted, etc.  For 
large files you may have to use tail instead of cat.

Rob Berendt