16 groups membership limit (part 2) Post: 302394593

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Operating Systems Solaris 16 groups membership limit (part 2) Post 302394593 by son_t on Friday 12th of February 2010 10:46:01 AM

02-12-2010

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16 groups membership limit (part 2)

Part 1 is here: Group membership limit

So I am having to solve and re-visit this problem... I've tried various OSes (Solaris10/Opensolaris/MacOSX/Debian) and ngroup_max settings, some work for local filesystems but not over NFSv4.

Peter Harvey's blog

Eisler's NFS Blog: What's the deal on the 16 group id limitation in NFS?

Bug ID: 4088757 Customer would like to increase ngroups_max more than 32

Has anyone overcome this problem of being limited to 16 groups over NFS?

---------- Post updated at 03:46 PM ---------- Previous update was at 09:37 AM ----------

I've been given a hint to use AUTH_DH: Diffie-Hellman authentication over NFS to achieve more than 16 group permissions...

So I've been trying my hardest but can not get the keys and authentication set up correctly for this to work. My attempt with:

Code:

mount -F nfs -o sec=dh server:/var/tmp/test /mnt

hangs forever! Could someone explain how I set up these authentication keys on the server and client for this to work, please?

I am running NIS, on the NFS server I have in the /etc/dfs/dfstab

Code:

share -F nfs -o sec=dh,rw=client,root=client /var/tmp

On each server and client I've run newkey -h server/client and I've even done this on the NIS master and pumped the keys out using the publickey file. Nothing seems to be working... why? Am I missing out a step here? Help or hints will be appreciated!

son_t

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install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)