Use this link to the O'Reilly database, or follow the link from the Library Databases A-Z.
On the O'Reilly access through your library page, select "Not listed? Click here":
On the next page enter your university email address to access the database.
Select "Got it!" on the next screen and you will be taken into the O'Reilly database.
You may receive a follow up email asking you to "Finish creating your account", this step is optional, you do NOT need to do this to gain access to O'Reilly whether on or off campus.