EZproxy user guide

EZproxy is a web proxy server - a system used to facilitate off-campus access to the databases, e-journals and other electronic resources that the Library has subscribed to. Unlike ERNA-VPN, there is no need to install or configure any software.

When you are off campus and trying to access an e-resource through the Library website, sEURch, or through the "FULL-TEXT @ EUR" links in Google Scholar, you will be prompted via pop-ups to select your institution (Erasmus University Rotterdam or Erasmus MC) and to log in with your ERNA-ID and password to the Single Sign On Service before you can access the resource.

Authentication to EZproxy

To get through the EZproxy server, you must be authenticated to the EZproxy server. You will see the following screens pop up when you go to an e-resource the first time.

  • EZproxy manual image 4

    1. Choose Erasmus University Rotterdam or Erasmus MC.

  • EZproxy manual - Single Sign On image

    2. Log in to the Single Sign On service with your ERNA-ID and password.

Once logged in you will be redirected to your destination URL.

Staying Connected

Once logged in, an EZproxy session should remain valid, but will time out after 2 hours of inactivity.
In order to stay in an EZproxy session, you must also:

  • Do your research within the same browser you used to logged into EZproxy. The session will bridge across multiple tabs of the same browser.
  • Navigate the web in a pathway, or chain, by following links or using your browser’s forward and back arrows as much as possible, instead of hyperlinking between sites.

For example, if you use the Library’s databases page to click through to a database, You will be connected and ‘in’ an EZproxy session. You can search the database for materials and all of your results will be available to you, but if you then decide to click on a site you have bookmarked or type in an URL for a new site directly into your browser address bar, you will jump ‘out’ of the session.

Access to resources via:

1. Library Access browser extension

Databases (e-resources) licensed by the library are by default accessible when you are on campus. However, when you're off-campus you need to take action. You can get access by authenticating through our EZproxy system. But the question is when do you need to take action. To know this is to know what licenses the Library has. Who knows?

The Library Access tool will master this problem by popping up a message when you come around a website with licensed material. Then you're prompted with a link or a message how to get access. Even for some websites not licensed, the library will suggest you another (licensed) website where you might find what you're looking for.

Library Access is a browser extension (add-on) personalized for the Erasmus University Library and its students and researchers. It will help you getting access to scholarly content based on our subscriptions.

All you have to do is to add it to your favorite browser.

Access

Library Access simplifies the process of getting access. The extension detects whether you open a website with material licensed by the library and – when you are off campus – automatically notifies you, and immediately presents the right proxy link to get access.

With the Library Access browser extension:

  • you don’t have to know about the distinction between being on- and off-campus access;
  • you don’t have to know whether a website or database contains material licensed by the library;
  • the process of getting access is reduced to just one step. You may even choose to automatically redirect any website that contains licensed resources.

Assist

Library Access also assists students and researchers. The EUR Library configures certain URL's to prompt a message when one comes around. For example, when coming unto Harvard Business Review (hbr.org), you get a message like: "Articles published in the magazine Harvard Business Review are available via EBSCO".

In short, the EUR Library guides you with this browser extension through the websites concerning scientific information.

Let’s get started

  1. Install the extension: www.leanlibrary.com/download
  2. Select your institution: Erasmus University Rotterdam
  3. Ready to go! Try for example www.jstor.org (Icon shows green, and when off-campus also gives a message. You can always click on it to see your situation.)

 Showcase

  • At not licensed websites on- and off-campus the icon is gray.
  • At licensed websites on-campus the icon is green.
  • At licensed websites off-campus the icon is green and prompts a message.
  • EZproxy image - Library Access message
    • At licensed websites off-campus the icon is green and prompts a message.
    • The URL behinds the Library Access button is an EUR EZproxy URL which contains ...eur.idm.oclc.org/... which directs you through our proxy server.

2. Bookmark tool

'Reload URL for off-campus access' is a button you can add to the bookmarks bar in your browser. Once clicked, the bookmark tool uses JavaScript to dynamically rewrite the page you are currently on and add the EZproxy prefix to its URL. If you are already connected, the reloaded page should present you with the content you're looking for; if you're not, you will first be prompted to login and then will be automatically redirected back to your original page.

The Bookmark Tool is not available at this moment (January 2018). 

In the last few months the library website content has been migrated to an other 'content management system'. Unfortunately, the EZproxy tool has not been migrated yet. However, there is a way to rewrite an URL to go through the EZ Proxy server. Just add the EZproxy prefix URL to your original destination URL. This is the EZproxy prefix of the Erasmus University: https://eur.idm.oclc.org/login?url=

For example: http://www.jstor.org with the prefix added becomes: https://eur.idm.oclc.org/login?url=http://www.jstor.org

We hope to add the EZproxy tool as soon as possible to our new website. Our apologies for the inconvenience in the meantime.

Whenever you are on a page which might be accessible through EZproxy, just click on the bookmark and the page you're on will reload through EZproxy.

3. sEURch

EZprozy also works for e-content indexed in sEURch, to which the library has a license or subscription. EZproxy will launch on execution of a search query in sEURch. 

  • Authentication EZproxy sEURch

    You can choose to Login with your ERNA-account to search and access subscribed e-content or, if you just want to browse, you can choose to Continue as guest - without logging in.

  • Access Online button

    If you are just interested in accessing one item in your search results look for the Access Online button in the item record. Clicking this button will launch the EZproxy authentication process.

  • Off-campus access sEURch

    If you later decide you want to access items listed in your search results just click in sEURch on the Library Links button (top right) and choose Off-campus access to enable EZproxy authentication.

4. Google Scholar

Google Scholar works with publishers of scholarly information to index peer-reviewed papers and other scholarly publications. The linked titles in Google Scholar search results point to commercial full-text versions on publishers' websites.

  • Google Scholar result purchase

    The linked titles in Google Scholar search results point to commercial full-text versions on publishers' websites.

  • Google Scholar title link paywall

    When searching Google Scholar off campus you may encounter a pay wall when you attempt to access the full text.

You can access EUR library materials off campus using Google Scholar through EZprozy.

EUR library subscriptions to e-content do not always link through a publisher's website (the title link in Google Scholar results) but may go though an agent, or database provider. To identify EUR library materials available off campus through the EZproxy server you must first configure Library links in the Google Scholar Settings to show FULL-TEXT @ EUR links in the Google Scholar search results.

Activate Library links in Google Scholar

  • Go to the Google Scholar page.
  • Click Settings, then Library links.
  • Type "Erasmus University Library" into the search box and click the search icon.
  • Check the box at Erasmus University Library - FULL-TEXT @ EUR.
  • Type "Open WorldCat" into the search box and click the search icon.
  • Check the box at Open WorldCat - Library Search.
  • Click Save.
  • Google Scholar results access

    Now you are ready to search. In the search results look for the FULL-TEXT @ EUR links.

  • Download PDF Google Scholar

    EZproxy will be initiated when you click on a FULL-TEXT @ EUR link and attempt to access a resource. Then you will be taken to the article or journal just as if you were on campus. Sometimes you may be required to browse for the specific article in an archive or table of contents. Look for a PDF link to the article.

5. Chrome browser extension

  • EZproxy Chrome browser extension

    To make it even easier for yourself, you can use the Chrome browser extension EZProxy Redirect.

  • Chrome extension book icon

    When installed, you will see a book icon in the upper right corner of your browser.

  • Choose EUR

    Before use, right click on it and choose Erasmus University Rotterdam from the options menu to configure it for our EZproxy.

6. EZproxy tool

If you have your own bookmarks/favorites to specific databases you can use the EZproxy tool to automatically rewrite them to redirect through the EZproxy server.

The EZproxy tool is not available at this moment (January 2018). 

In the last few months the library website content has been migrated to an other 'content management system'. Unfortunately, the EZproxy tool has not been migrated yet. However, there is a way to rewrite an URL to go through the EZ Proxy server. Just add the EZproxy prefix URL to your original destination URL. This is the EZproxy prefix of the Erasmus University: https://eur.idm.oclc.org/login?url=

For example: http://www.jstor.org with the prefix added becomes: https://eur.idm.oclc.org/login?url=http://www.jstor.org

We hope to add the EZproxy tool as soon as possible to our new website. Our apologies for the inconvenience in the meantime.

7. Manually

You can manually rewrite your URL to go through the EZproxy server. 
Just add the EZproxy prefix URL to your original destination URL. 

This is the EZproxy prefix of the Erasmus University: https://eur.idm.oclc.org/login?url=

For example: http://www.jstor.org/ with the prefix added becomes:
https://eur.idm.oclc.org/login?url=http://www.jstor.org/ 

Note that your destination URL must begin with http. (http://  https://  https://www. etc.)

Not registered

If an URL is not registered in our EZproxy server (when we don't have a subscription), you'll see the following message: 

To allow https://[url] to be used in a starting point URL, your EZproxy administrator must first authorize the hostname of this URL in the config.txt file. 

To see the full list of registered resources, check our list of databases

If a link doesn't work and you think that it should work, contact our information desk.

EZproxy & reference managers

Tools like ReadCube and Zotero offer the option to enter a EZproxy URL to help you access e-resources while you are off-campus.

For ReadCube the URL is: https://eur.idm.oclc.org/login?url=%@

For Zotero the schemes are: http://www.%h.eur.idm.oclc.org/%p and http://%h.eur.idm.oclc.org/%p

Please note: this EZproxy URL is not a link resolver, it will authenticate you as an EUR user. It is possible that you will be directed to a website or database the library is not subscribed to. In that case, use sEURch or Google Scholar to locate the article.

Known issues

Wharton Research Data Services (WRDS)

When you apply for access to WRDS, WRDS sends a Day Pass ticket like this one to your ERNA student mailbox.
https://wrds-web.wharton.upenn.edu/wrds/connect/daypass.cfm?ticket=0xe88990ab973384664861c5558f6b07ab

To use the WRDS Day Pass ticket off campus just add the EZproxy prefix: https://eur.idm.oclc.org/login?url= to the front of the link, like so: 

https://eur.idm.oclc.org/login?url=https://wrds-web.wharton.upenn.edu/wrds/connect/daypass.cfm?ticket=0xe88990ab973384664861c5558f6b07ab

Alternatively, copy and paste the WRDS Day Pass ticket URL into our EZproxy tool (lik to tool needs to be added), click Create and copy and paste the rewritten EZproxy URL into the address bar of your browser. You will then have access.

Databases not working with EZproxy

The databases below are at this time not accessible through EZproxy for different reasons. We are working on these matters. 

(last update: January 08, 2018)

CEPR
ESB ONLINE
International Bureau of Fiscal Documentation
Journal of Experimental Medicine