User Accounts

The Department of Computer Science maintains its own computer system which can be accessed only by students and staff of the department.

In order to use the services covering the whole university, users need a separate account for access to the IT Department's systems.

This means that the accounts for two systems are automatically created for major-subject students in computer science and department staff:

  1. the Computer Science Department system (cs), and
  2. the Active Directory of the university's IT Department (ad-hy)

These users have two usernames: a cs account and an ad-hy account.

Please note that the cs account and the ad-hy account have separate home directories, passwords and e-mail addresses. Even the First.Lastname alias may be different! Only the username is the guaranteed to be the same.

The cs account will give you access to the servers of the Department of Computer Science (such as

The ad-hy account of the IT Department will give you access to all classroom computers (Windows, Linux and OS X), the Ms Office 365, WebOodi, Eduroam and HUPnet (accessing the university network with your own laptop) and Software Download Centre

Obtaining your new username


New majoring students

Activate ad-hy account

A user account will automatically be prepared for students who have been accepted this year. Those who have finnish online banking codes or Mobile Certificate can activate the ad-hy account online:

You can also visit the IT Department user account office. Locations and opening hours, please see:

New users can claim their accounts by presenting a passport or an ID card and signing an agreement form.

Activate cs account

After you have a working ad-hy account, you can activate your CS Dept user account (aka cs account). Please visit page to activate and remember to set the password on page

Pekka Niklander in office A216 (Exactum, A block, 2nd floor) is also able to help with user accounts of computer science students and staff.

Minoring students

Minoring students can also get an account for the Computer Science Department computers.

Send an account request to the address tktl-luvat [at] .

State your username for your ad-hy account in this e-mail. Do NOT send your password! In reply, you will receive instructions for how to activate your cs account.


The hr-coordinator should instruct you how to get the university AD account. The instructions are also on

Make sure e-mails reach you


Please check your e-mails at the University  mail box and at the CS Dept mail box. If you use the University Mappi mail box regularly, you may want to redirect CS Dept e-mails (instructions 1. below) to your address.

  1. You can redirect your CS Dept. e-mail by setting the following sorting rule in the webmail interface: if message is over 0 bytes, redirect to this address
  2. You can redirect IT Dept. e-mails with the help of a web form.

Validity and renewing of accounts

All user accounts have a limited validity period (one year).

Two months before the validity period ends, the IT Department will send you first warning by e-mail. This warning is only sent to the address.

The CS account will be deactivated if your password gets over 1 year old. The Department of Computer Science sends out warnings to your CS email address.

Please use to change the CS account password. Since this page identifies you by the ad-hy password, you can change even an expired or forgotten CS password. For an expired account, the account starts working after one night after the password change.

Students registered as present

The validity of student accounts usually runs out at the end of September.

Students who have registered as present get their ad-hy account activated if some conditions are met.

You cannot renew your CS account separately, but only by keeping your IT Dept. ad-hy account valid. If your ad-hy account has been deactivated, you can have it reactivated at an IT Dept. user account office, or you can contact the Helpdesk.

If you want to renew your IT Dept unix account (aka CC account), contact Helpdesk.

Absent students

The principal rule is that only students who are registered as present at the university can have an active account.

In special cases, absent students may have an active account. Acceptable reasons for keeping an active account can be e.g. military service, maternity/paternity leave, and exchange studies abroad.

If the need arises, please contact


We try to renew the accounts of staff members before the expiration warning arrives. If you have received an e-mail warning of the expiration of your account anyway, please contact

05.04.2017 - 11:21 Pekka Niklander
21.09.2009 - 13:59 Webmaster