ATC: ATLAS Center at ANL

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===== Other Notes =====

  * [[ hpc:athenaEvtDisplay | Athena Event Displays ]]


==== Grid Certificates, Robotic Certificates ====

=== Using encoded tarballs ===

If given an encoded tarball use the following command
<code bash>
openssl aes-256-cbc -d -in filename.tgz.enc | tar zxf -
</code>

=== Removing a password ===
In the case of a Robotic Certificate, a password on the key will stop programs which use it so the password must be removed. Just use:
<code bash>
openssl rsa -in password-keyfile.pem -out passwordless-keyfile.pem
</code>
It will ask for the password on the old file, and you can skip entering one for the new file. 

  * ''openssl x509'' is for pem-formatted certificates
  * ''openssl rsa'' is for key files

=== Updating certificates CA directory ===
I've typically had to update the local copy of our CA certificate folder by grabbing the one at CERN:
''lxplus.cern.ch:/etc/grid-security/certificates''
and copying it locally. Otherwise you get errors from ''voms-proxy-init''.

=== Testing Success ===
To test the robotic key/cert you can do the following:
<code bash>
voms-proxy-init --cert </path/to/cert.pem> --key </path/to/key.pem> --certdir </path/to/certificates> -verify
</code>