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I'm trying to invoke a program to run as another user (by getting input user/pwd) in AS400 OS using Java. Like runas in Windows or sudo in Unix — what can we do in AS400 OS?

I am able to invoke basic Unix commands like find, cd, ls etc. through Java on AS400.

I have very restricted access on the experimental AS400 sandbox provided to me. So I am not sure if sudo command through java will work when ran as admin.

I think on AS400 console STRQSH or QSH is a custom build program and all Unix commands are not supported. Hence I am clueless about what is the correct and concert way of doing it. Any guidance will be appreciated – how do the industry folks do it? Is there any sudo/runas equivalent in AS400? Do IBM have its own shell?

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    The security model on the AS400/iSeries is significantly different from Windows and Unix/Linux. You should probably spend a little time studying it before attempting to do much with security interfaces.
    – Hot Licks
    Aug 1, 2012 at 16:19
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    Ask for a user profile that has the authorisation you need.
    – Buck Calabro
    Aug 1, 2012 at 16:24

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Take a look at the QSYGETPH api ... this will let you switch to a user profile that you have authority to.

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  • I wanted some solution such that I don't leave the java code. After QSYGETPH(invoke through java) we need to perform jobs with the same handle, so I cannot invoke a executable file sitting on IBM OS through java as a fresh user even after QSYGETPH api authentication is successful :(
    – AkD
    Aug 1, 2012 at 17:23
  • I don't have access to QSYGETPH but it will be great to know if we can authenticate and execute a program as a single unit. You can authenticate & execute a executable as a single unit in window or unix through java using runas/sudo (using java runtime call). How can we achieve that in IBM OS. Any strategies?
    – AkD
    Aug 1, 2012 at 17:38
  • Are you trying to switch credentials in the middle of a process ... or invoke a command using different credentials from within your Java code?
    – David G
    Aug 1, 2012 at 18:14
  • invoke a command using different credentials from within your Java code.
    – AkD
    Aug 1, 2012 at 18:36

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