Computer Accounts

All persons using SLAC computers or accounts are responsible for understanding and complying with the SLAC cyber security requirements.

Create or Use LCLS UNIX Computer Accounts, Set Up & Access Electronic Logbook (eLog)

Obtaining LCLS Unix computer account and accessing LCLS experiment elogs to participate in proposal data collection and analysis is a multi-step process:

  1. The proposal spokesperson or their designee must identify collaborators who need a SLAC UNIX account when they submit their beam time support request (BTSR) through User Portal.
    (After the BTSR has been submitted, if changes are needed, then the spokesperson should directly contact
  2. LCLS users who create or use UNIX accounts must:
    1. be registered in the User Portal
    2. have a valid User Agreement
    3. have a System ID # in the SLAC Directory , and be listed as Active
    4. complete Course CS100 - Cyber Security for Laboratory Users Training 
      (note: if you have a new computer account and have not completed this course, then you only have a 5-day grace period to complete this course before your account is disabled)
      • Get your password by filling out the Training Portal Password Request form
      • Click here to log into the Web Training Portal
      • Click the red Manual Log in button to access the login page where you will enter your SLAC system ID number and the password which was emailed to you from the previous step.
        (Please note, this is the 'Training Portal Password', and not your UNIX password or your User Portal password.)
        • If you were given a system ID with the leading zeros, drop them when you enter your number. So 000001234567 becomes 1234567.
        • If you forgot your password, you can reset it by using this link

      • After log-in, click on the Course Catalog link under where it says Start Here.
        • Enter the number and/or name of the course you need in the Learning Search box at the top of the screen to find your course.
      • This will bring up the course landing page. Click the Launch button to launch the course.
        • After log-in, select "Web Training Catalog".
        • Click on "Users" and then select 'Course CS100 - Cyber Security for Laboratory Users Training', click on 'Launch' to begin the course.
        • Please verify your training was recorded by clicking 'My Progress' to the left of the SLAC Training Portal home page.
        • Once you have completed the courses, save a screenshot of your certificates of completion in case there is a computer glitch (it may take 2 hours for credit for completed courses to be downloaded into the SLAC training database).
        • (For more information, see Troubleshooting section: Expired Course CS100 if you have an existing UNIX account)


Once you have completed your courses, print your certificates of completion! Take the certificates with you to get your badge.

Your training completion should automatically post to your SLAC training record within 2 hours. If it does not, email a copy of your certificate to to receive course credit.

    If you close the course before you print your certificate or the course you take does not offer a certificate at the end, you can print a copy of your certificate of completion by following these instructions:

1.       Login to the Web Training Portal.
2.       Click on the Your Transcript link under Start Here.
3.       Filter your Training Status in the pull down menu by Completed.
4.       To the right of the course you want, click the pull down menu and select View Certificate.
5.       This will bring up a window giving you the option of printing or saving your certificate.

  1. The LCLS users then log into the User Portal (See images below)
    1. Click the link  'LCLS Unix Account: none (more info)' from the Welcome page 
      computer account

    2. Click on the button 'Request LCLS Unix Account', and follow the instructions including reading and agreeing to the 'Use of SLAC Information Resources' agreement.
      (If you do not see this button, and you have just finished your Course CS100, then please wait a couple of hours and try again after the training data has synched.
      The username you choose should be 1 word, with no space.)
      computer account

    3. Within 5 minutes, your temporary password should be e-mailed to you, please follow the instructions to set your password
    4. If you have any problems, please e-mail

  2. When your UNIX account is created, it will be given permission to the experiment in Experiment Portal/eLog.
    (Permission in Experiment Portal/eLog is usually set up about a month before the experiment start date, using the UNIX accounts of the list of collaborators from the BTSR.  If you need access to the experiment earlier than that - or if you need access to a past experiment, please send e-mail to


Confirm Existing LCLS UNIX Computer Accounts

If you already have a Unix Account, then when you login to the  User Portal , the Welcome page will list whether the following conditions have been met for continued use of the account:

  • your account name, and the date that the password is valid till (password expires every 6 months)
  • whether the User Agreement is valid
  • whether Course CS100 is valid.

    If any of the above conditions needs to be fulfilled or for other problems with existing Unix accounts, please see troubleshooting below.


Tips for Troubleshooting Problems with your Computer Account

  1. Change Unix password (including expired passwords):
  2. Reset password (if you don’t remember your password, e-mail (for off-hour emergencies,
  3. Expired Course CS100 - Cyber Security for Laboratory Users Training (course is valid for 1 year) - when you login to User Portal it will display that the training has expired.  Follow the steps to renew Course CS100, then contact the SLAC IT Help Desk during normal business hours (Monday through Friday, 7 am to 6 pm Pacific,, +1 650.926.4357) to request to have your account re-enabled and a reset password be sent to you.  (note:  this process may take several days).
  4. Expired User Agreement - when you login to User Portal it will display that the User Agreement has expired.
  5. If you cannot see your experiment but can login to Experimental Portal Experiment Portal/eLog, contact