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From Per Steffensen <>
Subject Re: Securing solr index
Date Tue, 14 Apr 2015 12:03:36 GMT

I might misunderstand you, but if you are talking about securing the 
actual files/folders of the index, I do not think this is a Solr/Lucene 
concern. Use standard mechanisms of your OS. E.g. on linux/unix use 
chown, chgrp, chmod, sudo, apparmor etc - e.g. allowing only root to 
write the folders/files and sudo the user running Solr/Lucene to operate 
as root in this area. Even admins should not (normally) operate as root 
- that way they cannot write the files either. No one knows the 
root-password - except maybe for the super-super-admin, or you split the 
root-password in two and two admins know a part each, so that they have 
to both agree in order to operate as root. Be creative yourself.

Regards, Per Steffensen

On 13/04/15 12:13, Suresh Vanasekaran wrote:
> Hi,
> We are having the solr index maintained in a central server and multiple users might
be able to access the index data.
> May I know what are best practice for securing the solr index folder where ideally only
application user should be able to access. Even an admin user should not be able to copy the
data and use it in another schema.
> Thanks
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