Welcome to PUB400.COM - Your public IBM i 7.4 server

What is PUB400.COM?
  • A free and public Server running IBM i 7.4 for everyone
  • You can create your own user, you have 300MB of disk storage and two private libraries
  • You can program in CL, RPG, COBOL, train your skills and start learning about the best server system ever :)
  • Create your own programming projects, you can even use node.js or other web technologies
  • An average of 45 new users per day! Great IBM i community!
About PUB400.COM:
This system has been serving the IBM i community for almost 15 years since starting as a little test system.
Serving more than 70.000 Users worldwide as a learning and testing environment to get in touch with the most advanced business operating system "IBM i" (named "AS/400" before). IBM i is the best 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.
Please respect some rules using this system:
  • Anyone can create a user profile.
    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 backup, and there will be no guarantee that this system is online if you need it.
  • If you need reliable access, high quality service, just visit RZKH.DE
  • This system is a playground. But it will not be a place to make business without the efforts...
Please note: System in maintenance at December 19th - will be offline!
NOTE: Love PUB400? Nominate Holger Scherer (hs at rzkh.de) a Community Champion at IBM Champions

Sign up
and start exploring IBM i.

Reset password
when you lost your password and cannot connect.

User forum
share knowledge in our little forum (members only)

FAQ
some useful help pages on PUB400

Links and docs
useful links and documents