Any UID can run concurrent processes. UID 0 unlimited number, others are limited by MAXsomething in BPXPRMxx.
On 3/16/06, Steve Horein <[EMAIL PROTECTED]> wrote: > > Hello listers, > While installing an upgrade to a product, the instructions indicate to > assign UID(0) to an ID. The product in question involves running a Java > server, and the webserver task supporting the Java server likewise has > this > requirement. When questioning Support for the product, it was mentioned > that > in Topic 5.4.1 of z/OS V1R6.0 UNIX System Services Planning, bullet 3 > explains the reason: > > "5.4.1 What can superusers do? > > Superusers can do the following: > * Pass all security checks so that the superuser can access any file > in > the file system. > * Manage processes > * Have an unlimited number of processes running concurrently. For a > started procedure, this is true only if it has a UID of 0. It is not true > for a trusted or privileged process with a different UID. > * Change identity from one UID to another. > * Use setrlimit() to increase any of the system limits for a process. > > The parent process propagates its UID and TRUSTED or PRIVILEGED attribute > to > a forked child process. Thus, a UID of 0 is propagated to a forked child." > > Does this mean that a non UID(0) ID cannot have concurrently running > processes? I am not yet at z/OS 1.6, and the command D OMVS,A=ALL from my > system shows a number of processes from IDs that do not have a UID > assigned > at all! Most do have a UID assigned, and most that have concurrent > processed > do have UID(0). My goal is to have more unique IDs, and utilize either > UNIXPRIV or BPX.SUPERUSER. Will I get bit when I move to z/OS 1.6?! > > Thanks, > Steve Horein > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
