[Setup] ZEO cluster filestorage and blobstorage security when zeoserver effective-user = zeo and when client1 shared-blob = on

Graham Perrin G.J.Perrin at bton.ac.uk
Fri Oct 10 20:05:39 UTC 2008

Graham Perrin wrote:
> Experimenting with Plone- from launchpad
> Re
> <http://dev.plone.org/plone/browser/Installers/UnifiedInstaller/trunk/HISTORY.txt?rev=22529>:
>> - Set up root-install cluster to run ZEO and clients under
>> separate user ids. Don't allow clients access to filestorage.
> and <http://dev.plone.org/plone/changeset/22467>:
>> Tighten cluster security by using a different user for ZEO;
>> restructure var/ so that clients don't need to write to anything
>> but their own subdirectories. 
> If we plone.app.blob to the mix … 

To the [chown] section of my experimental buildout, which I'm using with
Unified Installer Technology Preview and plone.app.blob in root ZEO cluster
configuration, I have added the following lines: 

    chown -R root:plone ${buildout:directory}/var/blobstorage
    chmod -R 570 ${buildout:directory}/var/blobstorage

A result, in debug mode:

2008-10-10 20:49:23 WARNING ZODB.blob (1081) Blob dir
/Applications/Plone/zeocluster/var/blobstorage/ has insecure mode setting

My plone group comprises users plone and zeo -- 

[macbookpro03-centrim:~] gjp22% dscl . -read /Groups/plone
AppleMetaNodeLocation: /Local/Default
GroupMembership: plone zeo
PrimaryGroupID: 50
RecordName: plone
RecordType: dsRecTypeStandard:Groups

and unless I'm missing something: 

_both_ zeoserver (python process for which is owned by zeo) _and_ client1
(python process for which is owned by plone) require access to blobstorage
(which should be suitably secured). 

Any advice? 

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