Password
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Passwords
OTP and UNIX passwords
There are two types of password:
- A regular or UNIX (or IdNG) password
- Used for almost everything done from inside the CSE network
- A One-Time password or OTP
- Used mainly for connecting to CSE services from outside the CSE network. See Connecting from outside.
An OTP can be generated in one of 3 ways:
- Using the HOTP Java application installed on your mobile phone. See below.
- From SMS. An SMS can be requested at https://www.cs.huji.ac.il/smsotp. Five OTPs will be sent. These should be used in sequential order. (Note: If you have not yet registered your mobile phone number, you will first have to go to the HOTP registration page, or to Kobi, Ross -2 room 1a)
- Using a CSE-supplied TeleID card. (These are no longer being distributed to new users.)
To change your UNIX password
Use command:
passwd
You can use either your old UNIX password, or an OTP, to authenticate
To install, or reinstall, HOTP on your mobile phone
- Within the CSE network:
- Login to account register on any of the workstations in the student labs or, if you are already logged in, use command:
register
- Outside the CSE network:
- Go to the HOTP registration page.
Note: If your phone number has changed, you will first have go to Kobi, Ross -2 room 1a.
HOTP can be installed on mobile phones with Java and Internet. This includes most Cellcom and Orange, and some Pelephone, phones shipped over the last few years. If Internet is currently disabled, the service provider can be asked to enable it for the duration of the installation. Alternatively, on many models of phone it is possible to successfully install HOTP by exchanging the SIM with one from an Internet-enabled phone. This should be done during the installation procedure, after the SMS with the URL is received. Internet is not required to use the HOTP application.
If your HOTP application generates invalid OTPs
Select 'Back' and re-enter your PIN. If that doesn't help, reinstall HOTP (see above). If you no longer have an Internet connection, call System, 02-65-85691, and request a reset.
Forgotten password
In case you forget the UNIX password, you can still log in using the otp. To do so, append the suffix :otp to your username when logging in and then enter otp instead of the regular password. e.g. instead of username log in as username:otp, you can log in this way either directly on a workstation, or through remote connection (rsh, telnet, etc.), e.g. moishe will log in by:
rsh -l moishe:otp inferno
After you have successfully logged in, you can reset your UNIX password as explained above.
If you fail to log in, or can't get a working otp, you will have to come to the system (ross 1, room 101) with an identification card and we will reset your password.
