Welcome to PUB400.COM - Your public IBM i 7.5 server

What is PUB400.COM?

  • A free and public Server running IBM i 7.5 for everyone
  • You can create your own user profile, you have 400MB of disk storage and two private libraries
  • You can program in CL, RPG, SQL, COBOL, train your skills and start learning about the best server operating system ever :)
  • Create your own programming projects, you can even use node.js or other web technologies (contact us for http settings)
  • An average of 25 new users per day! Great IBM i community!

PUB400 community rules

  • Anyone can create a user profile (see belog)
    Do not create multiple users or try to run commercial environments
  • There will be a hard restriction on number of connections from a single IP
  • There will be a hard setting on excluding other users from a user library
  • There will be no regular backup, and there will be no guarantee that this system is online if you need it
  • This system is a playground. But it will not be a place to make business without the efforts...

IBM will make IBM i 7.5 available on may 10th, so we directly start updating PUB400. System may be offline then. Be patient if you cannot connect!

PUB400.COM has been serving the IBM i community for almost 20 years, starting in 2000 as a little test system. Now it is serving more than 20.000 Users worldwide as a learning and testing environment to get in touch with the most advanced business operating system "IBM i" (named "AS/400" and "iSeries" before). IBM i is the leading integrative platform for managing and running business oriented workload combining legacy software with modern open source techniques. It's just up to you - IBM i will handle it.
If you need reliable IBM hosting, high quality service, just visit www.POWERbunker.com

NOTE: Love PUB400? Nominate Holger Scherer (hs at rzkh.de) a Community Champion at IBM Champions


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User forum
the place where PUB400.COM users can share knowledge and ask questions


open FAQ page
a lot of frequently asked questions on how to connect and start with PUB400

Links / docs

links and docs
this is a growing collection of useful links for beginners and experienced users.