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02.13.2008 at 10:47AM PST, ID: 23160648
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xntpd not working
Zone: IBM AIX Unix
I started xntpd, but somehow it disappears.....
Any ideas, please?

root@milt:/>>startsrc -s xntpd -a "-x"
0513-059 The xntpd Subsystem has been started. Subsystem PID is 1282236.
root@milt:/>>ps -ef |grep xntpd
    root 1282240 3686416   0 13:44:54  pts/6  0:00 grep xntpd
root@milt:/>>ps 1282236
     PID    TTY STAT  TIME COMMAND

thx much

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Question Stats
Zone: OS
Question Asked By: ethanjohnsons
Solution Provided By: dfke
Participating Experts: 2
Solution Grade: A
Views: 13
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02.13.2008 at 09:09PM PST, ID: 20891062

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02.14.2008 at 01:29AM PST, ID: 20892022

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02.14.2008 at 06:51PM PST, ID: 20899041

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02.13.2008 at 09:09PM PST, ID: 20891062
     The internet time service is available to insure the time on this machine is always accurate. This service is called Network Time Protocol. To access it do the following.
a.      ntpdate d 100.100.100.100 Where you substitute a valid TCP/IP address for a time server on your network or one from your ISP or a valid internet time server. This is a query to display any offset.
b.      ntpdate 100.100.100.100 to instantaneously synchronize.
c.      Create a /etc/ntp.conf file with the following lines:
server 100.100.100.100
broadcastclient
driftfile /etc/ntp.drift
tracefile /etc/ntp.trace
d.      Start the ntpd daemon startsrc s xntpd or
e.      Configure the system to auto start the daemon. Place the following line in the /etc/rc.tcpip file.
i.      start /usr/sbin/xntpd $src_running
f.      Refer to IBM Redbook # SG24-6622-00 for additional information.
i.      http://publib-b.boulder.ibm.com/abstracts/sg246622.html?Open
ii.      Pages 98 to 101
Assisted Solution
 
02.14.2008 at 01:29AM PST, ID: 20892022
The following information outlines the steps necessary to configure a basic NTP setup between an NTP client and server on AIX 5L.

On server
1. Verify that you have a suitable NTP server. Enter:

2. # lssrc -ls xntpd
NOTE: Sys peer should show a valid server or 127.127.1.0 .

If the server is "insane", you will need to correct it by adding a server line to /etc/ntp.conf and restarting xntpd. This can be done by following these steps:

# vi /etc/ntp.conf

Add:
server 127.127.1.0
Double check that "broadcast client" is commented out.

# stopsrc -s xntpd
# startsrc -s xntpd

NOTE: If the server runs databases, use the -x flag to prevent the clock from changing in a negative direction. Enter the following:
 
# startsrc -s xntpd -a "-x"

3. Repeat Step 1 to verify that the server is synched.
This process can take up to 12 minutes.

On client

1. Verify that you have a server suitable for synchronization.

Enter:
2. # ntpdate -d ip.address.of.server

The offset must be less than 1000 seconds for xntpd to synch. If the offset is greater than 1000 seconds, change the time manually on the client and run the ntpdate -d again.
If you get the message, "no server suitable for synchronization found", verify xntpd is running on the server (see above) and that no firewalls are blocking port 123.

3. Specify your xntp server in /etc/ntp.conf, enter:
4. # vi /etc/ntp.conf
(Comment out the "broadcastclient" line and add server ip.address.of.server prefer.)
Leave the driftfile and tracefile at their defaults.

5. Start the xntpd daemon:
6. # startsrc -s xntpd
(Use the -x flag if it is appropriate for your environment.)
7. Uncomment xntpd from /etc/rc.tcpip so it will start on a reboot.

8. # vi /etc/rc.tcpip
Uncomment the following line:
start /usr/sbin/xntpd "$src_running"
If using the -x flag, add "-x" to the end of the line. You must include the quotes around the -x.
 
9. Verify that the client is synched.
10. # lssrc -ls xntpd
NOTE: Sys peer should display the IP address or name of your xntp server. This process may take up to 12 minutes.

Ntp should be installed as part of bos.net.tcp.client:

# lslpp -f bos.net.tcp.client |grep ntp
/usr/sbin/ntpdate
/usr/samples/xntp/ntp.copyrights
/usr/sbin/ntptrace
/usr/sbin/xntpdc
/usr/sbin/xntpd
/usr/samples/xntp/default.conf
/usr/sbin/sntp
/usr/samples/xntp/example.keys
/usr/samples/xntp
/usr/samples/xntp/localclock.conf
/usr/sbin/ntpq
/etc/ntp.conf
# lssrc -a |grep ntp
xntpd tcpip inoperative
Accepted Solution
 
02.14.2008 at 06:51PM PST, ID: 20899041
thx much
 
 
20080236-EE-VQP-29 / EE_QW_2_20070628