A CSID is a unique alphanumeric identifier, similar to your SUNetID, that authenticates users to systems and services unique to the Computer Science Department. You must have a CSID in order to access certain computers, services, and websites managed by the department, such as:

  • Pedit, where you manage your personal contact information, web page, password and email forwarding for @cs email accounts.
  • Medit, where you can create and maintain @cs mailing lists.
  • GIN, the Gates Information Network, for student waivers.
  • Shell access to systems in certain CS research labs and the student/alumni machine xenon.

To request a CSID, fill out the form at the URL below.  If you have a SUNetID, we recommend requesting a CSID that's the same as your SUNetID but do not use the same password for both your SUNetID and your CSID:


Password Reset

To reset your CS password, come to Gates B28-B36 during business hours. Please bring an ID.
If you can't come to Gates, call 650-725-1451 from 1-3pm on Wednesday or Friday.

Acceptable Use Policy

These policies provide guidelines for use of your CSID on all Computer Science Department computer systems. Failure to abide by these policies puts the user at risk of having his or her CSID disabled or removed. These policies are subject to change without notice.

Use of the Computer Science Department computer resources at Stanford University is governed by the Computer and Network Usage Policy (AGM 62) and must comply with all policies outlined therein.


Your password is the most important single aspect of the security of your account.

Easy passwords will not be allowed. Never include your actual password in email -- email is not secure. If we find that you sent your password via email, your CSID will be locked and you will have to speak with us in person to have it unlocked.

Prohibited Programs

  • Absolutely, no IRC, private HTTP server or any continuously CPU intensive programs are allowed on xenon. Such programs found running will be killed. Repeated abuse will be grounds for an account being disabled and deleted.
  • Homework and sponsored research are not allowed on xenon.

Access to Resources

Your CS ID is assigned access privileges according to your role withing the Computer Science Department (faculty, staff, or student). For example, a professor in the Stanford AI Lab has access to different computing resources than a CS alumnus.

Access to... Available to...
  • medit
  • pedit
  • Anyone with a relation to the Computer Science Department (staff, faculty, students and alumni), or an office in Gates.
  • Xenon access via ssh
  • Limited email storage on xenon
  • File storage in AFS
  • CS Students (Undergraduate, Masters, PhD) and alumni. Quotas for active students are currently 100MB AFS / 20MB Mail. For alumni, they are 100MB AFS / 20MB Mail.
  • File storage in AFS
  • CS Staff and Faculty only.
  • Access to AI/Robotics Lab systems
  • File storage in AFS
  • Anybody associated with the AI Lab, with faculty approval. File storage in AFS is subject to faculty approval and availability.
  • Access to Theory Lab systems
  • File storage in AFS
  • Anybody associated with the Theory Lab, with faculty approval. File storage in AFS is subject to faculty approval and availability.