I apologize for the confusing post. It was pointed out that I was indeed
confusing kernel groups with NIS netgroups. What I was really interested
in was kernel groups.
* tcpdump - is part of the OSF/1 v3.0 distribution. It does not exist in the
OSF/1 v1.3 distribution, and I do not have data on when it arrived in the os.
To use it, you must modify the kernel and build a device - see man pages
for "bpf" and "packetfilter". It was posited that /usr/sbin/tcpdump is
probably already equivalent to tcpdump-2.0, and that if one really wants the
latest and greatest version it is available on:
ftp.ee.lbl.gov - tcpdump-3.0, and possibly a patch
libpcap-0.0, and possibly a patch or two
* maxgroups - I was looking for a parameter that controls the maximum number
of groups a user can be in. Two possibilities were suggested:
/usr/sys/include/sys/syslimits.h -
# define NGROUPS_MAX 32 /* max number of supplemental group id's */
/usr/sys/include/rpc/auth_unix.h -
/* gids compose part of a credential; there may not be more than 32 of them */
# define NGRPS 32
seb_at_lns62.lns.cornell.edu also pointed out that there may be other places where
this parameter is referenced, and since "these are "hard defines", not
conditional on some outside pre-definition, ... that means that you may have
to edit all of the appropriate include files."
This sounds like a daunting task, and in reality, 32 is probably enough - some
of our suns and other systems support only 16 or 24, and these are more
problematic. However, if anyone has any additional information, please pass
it along and I will summarize.
Many thanks to all who replied.
Judith Reed
judith_at_npac.syr.edu
systems_at_npac.syr.edu
Received on Wed Mar 22 1995 - 16:02:54 NZST