• The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
Menu
  • The Four Hundred
  • Subscribe
  • Media Kit
  • Contributors
  • About Us
  • Contact
  • Keeping Time with NTP

    June 25, 2008 Tom Van Looy

    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

    …

    Read more
  • What Happened to My Key?

    June 25, 2008 Hey, Ted

    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

    …

    Read more
  • Stopping Your System i from Starting Up

    June 25, 2008 Hey, Joe

    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

    …

    Read more

Content archive

  • The Four Hundred
  • Four Hundred Stuff
  • Four Hundred Guru

Recent Posts

  • LANSA Developing Business Intelligence Tool
  • Blazing The Trail For VTL In The Cloud
  • Data De-Dupe Gives VTL Customers More Options
  • Four Hundred Monitor, March 29
  • The Big Spending On IT Security Is Only Going To Get Bigger
  • IBM Tweaks Some Power Systems Prices Down, Others Up
  • Disaster Recovery: From OS/400 V5R3 To IBM i 7.4 In 36 Hours
  • The Disconnect In Modernization Planning And Execution
  • Superior Support: One Of The Reasons You Pay The Power Systems Premium
  • IBM i PTF Guide, Volume 25, Number 13

Subscribe

To get news from IT Jungle sent to your inbox every week, subscribe to our newsletter.

Pages

  • About Us
  • Contact
  • Contributors
  • Four Hundred Monitor
  • IBM i PTF Guide
  • Media Kit
  • Subscribe

Search

Copyright © 2023 IT Jungle