Re: [Xgrid] Submitting job from daemon process (Kerberos-related)

Subject: Re: [Xgrid] Submitting job from daemon process (Kerberos-related)

From: Ernest Prabhakar <email@hidden>

Date: Mon, 25 Feb 2008 13:22:52 -0800

Delivered-to: email@hidden

Hi all,

Sorry for the delay, but I wanted to answer this question from a couple weeks ago:

Hallo everyone,
we have an XGrid infrastructure working fine with Kerberos authentication and all the bells and whitles. I am trying to get a client (a background process) to submit a job, but it cannot correctly authenticate via Kerberos, as daemon processes don't have a ccache.

For daemon processes you can set the KRB5CCNAME environment variable:

export KRB5CCNAME="FILE:/tmp/cc"

And now your Kerberos credentials will be stored in and read from the /tmp/cc file instead of the usual ccache. After setting that environment variable tools such as kinit, klist, and xgrid will all look there.

Of course, we recommend putting your CC file in a secure filesystem location (not at the top level of /tmp) that is writable only by the user obtaining the credentials.

Hope this helps,

-- Ernie P.

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