The Network Time Protocol (NTP) is a protocol for synchronizing the clocks of computer systems over packet-switched, variable-latency data networks. NTP uses UDP port 123 as its transport layer. It is designed particularly to resist the effects of variable latency (jitter buffer).

The Network Time Protocol (NTP) version 3 is described in RFC1305 and the Simple Network Time Protocol (SNTP) version 4 is described in RFC2030. NTP is not related to the much simpler daytime RFC867 and time RFC868 protocols.

NTP client/server on i5/OS

You can validate the current time with the command DSPSYSVAL QDATETIME. The NTP server on

We use SQL’s CREATE TABLE command to make each user his own copy of a file. Although the original file is keyed, the copy is not. Do you have any ideas on how to keep the key?

–Mary Jo

Mary Jo provided the following commands by way of example:

create table Temp as
  (select * from PATTERN) with no data 

rename table Temp to FileForJoeSmith

So, what’s Mary Jo to do?

The first thought I had was to create the index by hand, like this:

create unique index FileForJoeSmithIndex1
   on FileForJoeSmith (SomeField)

But that was not a solution to the

I’m performing an i5/OS upgrade this weekend, but I first want to save my system by performing an Option 21 save (Entire system) off the GO SAVE menu. To save time, I don’t want to automatically restart the system after the backup completes. How do I stop my system from automatically restarting?

–Bruce

The bad news is that there isn’t a parameter that stops an Option 21 save from restarting an i5/OS system after your save completes. The good news is that you don’t need one. It’s simple to keep your system in a restricted state after a backup. All