Getting Data In

Can one enable the universal forwarder under solaris 10 to read /var/log/authlog as user "splunk"?

cmonig
Explorer

Hi,

we want to deploy universal forwarders to solaris 10 machines.
For security reasons, we want to keep the number of applications running with root priviledges as low as possible, and would prefer to run the forwarder as the user "splunk".

We need to index the contents of the file "/var/log/authlog", which is only readable for "root":

-rw------- 1 root sys 34M Sep 14 08:42 authlog

We tried to add splunk to the group "sys", and make the file readable to the group, but this is not working as the process writing "authlog" resets the permission each time authlog is written to.

Is there a way to work around this, or is the only solution to run splunk with root priviledges?

Thanks,

Christoph

1 Solution

dwaddle
SplunkTrust
SplunkTrust

This really isn't a "Splunk" question so much as it is a Unix file systems permission one. Splunk is just any other process, required to follow the permission model as defined by the operation system. You have some options:

  1. Run Splunk as root (you've already said this is undesirable)
  2. Hack up a scripted input that can run setuid (also undesirable IMHO)
  3. See if Solaris will let you apply a POSIX ACL to the /var/log/authlog file, explicitly granting read privs to user splunk. The big trick here is whether it will be maintained over rotations and so on.

View solution in original post

dwaddle
SplunkTrust
SplunkTrust

This really isn't a "Splunk" question so much as it is a Unix file systems permission one. Splunk is just any other process, required to follow the permission model as defined by the operation system. You have some options:

  1. Run Splunk as root (you've already said this is undesirable)
  2. Hack up a scripted input that can run setuid (also undesirable IMHO)
  3. See if Solaris will let you apply a POSIX ACL to the /var/log/authlog file, explicitly granting read privs to user splunk. The big trick here is whether it will be maintained over rotations and so on.
Get Updates on the Splunk Community!

How I Instrumented a Rust Application Without Knowing Rust

As a technical writer, I often have to edit or create code snippets for Splunk's distributions of ...

Splunk Community Platform Survey

Hey Splunk Community, Starting today, the community platform may prompt you to participate in a survey. The ...

Observability Highlights | November 2022 Newsletter

 November 2022Observability CloudEnd Of Support Extension for SignalFx Smart AgentSplunk is extending the End ...