Overview
NetID/GuestID
Your Cornell Netid or Guestid is used to access central Cornell services, the Coral lab management system, the CNF AFS file server, and login to the CNF Thin service and Windows workstations.
Per Cornell policy, the password used for your GuestID or NetID must not be used anywhere else and must not be written down. If this password is compromised, others will be able to access your data files and charge lab time to your account.
Using Your NetID/GuestID
Which is which?
A Cornell NetID is a series of two or three letters followed by a series of numbers.The letters will usually correspond to yoru intials. For example, sph1 .
CNF may reactivate old NetIDs for use at CNF. When onboarding, let the CNF User Program know you have an old NetID to re-use. Re-activating a Cornell NetID is preferable to obtaining a GuestID.
Some external users received Sponsored NetIDs for use in the Daily Check system. Netids activated solely for this purpose are not used at CNF.
A Cornell GuestID starts with "gid" for GuestID, followed by a dash, followed by your lastname, and then followed by your first and/or middle initials and optionally a number. For example, gid-doej .
A Legacy GuestID is usually formatted as your firstname followed by a period followed by your lastname optionally followed by a number. For example: john.doe . Legacy GuestIDs are no longer in use at Cornell University.
Short Version
The short version of your netid/guestid is simply the NetID or GuestID as denoted above.
Long Version
The long version of your netid/guestid looks just like the short version, but with some extra information, called the Realm, appended to the end. For a netid, this will be either @CIT.CORNELL.EDU or @cit.cornell.edu . And for a Legacy Guestid, the extra information is one of @GUEST.CORNELL.EDU or @guest.cornell.edu . For a Cornell GuestID, the extra information is either @CORNELL.EDU or @cornell.edu. See below for when to use uppercase or lowercase after the @ sign. The portion of your netid/guestid before the @ symbol will always be lowercase.
NEMO
Login to NEMO via CUWebLogin using the short version of your NetID or GuestID.
AFS - only use of the long version
Login to afs using the long version of your netid/guestid, with the portion after the @ symbol capitalized.
CNF Thin
Login to the CNF Thin service using the short version of your netid/guestid.
Windows
Login to windows using the short version of your netid/guestid (if you attempt to login as user@CIT.CORNELL.EDU, you will receive a strange nonsensical error).
To keep your private data private, remember to logout of Windows by choosing "Log Off" from the Start menu.
CULearn
Logins to CULearn use different URLs depending on whether one is using a Cornell NetID or a Cornell GuestID. Use the short version of your netid or guestid to login to CULearn. And GuestID CULearn logins use a separate password not synchronized with your normal GuestID password. See the CULearn Trainings page for more information.
NextGen Forms
Use the links on the main CNF website Getting Started pages to login. Cornell users will use the short version of their Cornell NetID. External users will create a separate account with their email address in the system.
URLs
Reset a forgotten password
https://cornellcnf.link/iforgot
NetIDs, Passwords, Authentication, and More
http://www.cit.cornell.edu/identity/