Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!purdue!haven!decuac!hussar.dco.dec.com!mjr From: mjr@hussar.dco.dec.com (Marcus J. Ranum) Newsgroups: comp.unix.ultrix Subject: Re: Problems with NFS and SunOS 4.1 Message-ID: <1990Dec24.040150.17185@decuac.dec.com> Date: 24 Dec 90 04:01:50 GMT References: <1990Dec11.222040.24999@ee.rochester.edu> <2767D378.1480@orion.oac.uci.edu> <2774FE89.10104@orion.oac.uci.edu> Organization: Digital Equipment Corp., Washington Ultrix Resource Center Lines: 24 In article <2774FE89.10104@orion.oac.uci.edu> Mike Iglesias writes: >I'm not sure if this is a problem with the Suns or Ultrix. Does anyone >know if there's a limitation in the mount protocol for the number of >groups that can be passed in the credentials? I think it's a problem with the old Sun RPC protocol's authorization system - there's a value NGROUP /usr/include/sys/param.h - on my SunOs3.X system it is set as: #define NGROUPS 8 /* max number groups */ on my ULTRIX 4.0 system: #define NGROUPS 32 /* max number groups */ I'm not sure *who*s problem it is - I'd say it's a problem with the protocol. A quick grep of the RPC code indicates it's hardcoded right into authunix_create_default(), where it calls getgroups() - which is also hard-limited. mjr. -- "Don't include .signature twice" [From the notebooks of a heretic, 1990] -- "Don't include .signature twice" [From the motebooks of a heretic, 1990]