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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.

As of fall 2015, CNF is using two separate GuestID systems. The older system is called the Legacy GuestID system. The newer system is simply called the Cornell GuestID system. Legacy GuestIDs are being phased out in favor of Cornell GuestIDs.

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.

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