RE: [PLUG] are there any forbidden group names? or numbers?

["George Gallen" <ggallen@slackinc.com>]

thanks.

It's definitely the big group that is the problem. I backup up the groups
removed the big group, and all was well. Only problem is just about every
user on the system is a member of the big group "users".

Can groups have groups in them?
Say, I broke up the big group into 10 groups, is there a way to make
a group of the 10 groups? I haven't read that there were...

George

> -----Original Message-----
> From: plug-bounces@lists.phillylinux.org
> [mailto:plug-bounces@lists.phillylinux.org]On Behalf Of Stephen Gran
> Sent: Wednesday, August 02, 2006 7:52 PM
> To: plug@lists.phillylinux.org
> Subject: Re: [PLUG] are there any forbidden group names? or numbers?
> 
> There is a limit on how many people can be members of a group, but it
> shouldn't be anywhere near that low.  You can check the compile time
> setting with getconf, but I can't for the life of me remember 
> the macro
> to give it.  I don't think it's NGROUPS_MAX (I think that's how many
> groups a user can be a member of, not how many members can be in a
> group), but maybe google will tell you.
> 
> At any rate, if it was NGROUPS_MAX, you would run 
> getconf NGROUPS_MAX
> 
> 
> awk -F: '{print $1}' /etc/group | sort | uniq -c | awk '$1 > 
> 1 {print $2}'
> awk -F: '{print $3}' /etc/group | sort | uniq -c | awk '$1 > 
> 1 {print $2}'
> 
> Repeat for /etc/gshadow.
> 
> The first sorts on group name, and prints if it's not unique, 
> the second
> sorts on group number and prints if it's not unique.  There are more
> elegant ways to write it, but the file shouldn't be so big and you
> shouldn't be running it so often it really matters.  The 
> important thing
> is, if you have any output at all from those commands, you have
> something to investigate.
> -- 
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