Limit on number of groups a user can join

Chuck Swiger cswiger at mac.com
Tue Jan 15 15:13:05 PST 2008


On Jan 15, 2008, at 3:01 PM, Andrea Venturoli wrote:
> I made some tries removing him from other groups and I got to the  
> conclusion that it works as long as he is in no more than 15 groups,  
> but breaks when he join the 16th.  Is this an hard limit? Can it be  
> extended? Why this?

This limit is somewhat historical but cannot easily be changed because  
this max # is hard-coded into the NFS protocol, which needs to  
describe which groups a user belongs to.  If you're not using NFS, you  
might try changing the declaration of KI_NGROUPS in /usr/src/sys/ 
user.h and build a new kernel, I believe....

-- 
-Chuck



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