Certificate fixes

Fixing Citrix Errors

Follow the steps below to fix an "Untrusted Certificate Error 61" or "Connection Failed Error 1110" when using Citrix Receiver. Needing Citrix access? God to our helpdesk and submit a Citrix ticket.

 

Supercomputing FAQs

Installing a new certificate

Determining which certificate you need to install

In the error message from Citrix, it will specify that you either do not trust:

  1. COMODO RSA Certification Authority

  2. InCommon RSA Server CA

If your error is regarding COMODO RSA Certification Authority:

  1. Go to Comodo’s website: https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/969/108/root-comodo-rsa-certification-authority-sha-2

  2. Download the attachment “comodorsacertificationauthority.crt” at the bottom of the page

    A link to download comodorsacertificationauthority.crt file, rated 4 out of 5 stars by 28 votes, with options to mark as Helpful or Not helpful.

If your error is regarding either:

  1. InCommon RSA Server CA

  2. USERTrust RSA Certification Authority

    A computer pop-up security warning: Untrusted certificate from InCommon RSA Server CA. Quit button shown.
  3. Go to Comodo’s InCommon website: https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/991/0/incommonssl-sha-2

  4. Download the attachment “incommonrsaserverca-bundle.crt”

Screenshot showing four .crt file attachments with sizes, a 3-star rating from 4 votes, and thumbs up/down for marking helpfulness.

Installing the Certificate

Directions for Windows

  1. Double click on the certificate file you downloaded

A desktop icon displaying a certificate image with the filename “comodorsacertificationauthority.crt” underneath it. The background is black.

2.  If prompted, click “Open”

Windows Certificate window showing COMODO RSA certificate details, valid 2010–2038, with usage and install options.

3. In the Certificate dialogue, click “Install Certificate”, the Certificate Import Wizard will pop up.

Certificate Import Wizard welcome screen with description, certificate icon, and Back (disabled), Next (highlighted), and Cancel buttons.

4. Click “Next”

Certificate Import Wizard with auto or manual store selection, auto selected, and Back, Next, Cancel buttons.

5. Leave “Automatically select the certificate store…” selected and click “Next”

Final step of Certificate Import Wizard showing settings and Back, Finish (highlighted), and Cancel buttons.

6. On the next (final) page click “Finish”

A dialog box from the Certificate Import Wizard displays an information icon and the message The import was successful. with an OK button at the bottom right.

7. You should receive a pop-up reporting “The import was successful”.

How to install the certificate in OSX

  1. Click on the downloaded certificate file.

Two certificate icon files in Downloads folder, including incommonrsaserverca-bundle.crt, both with gold seal graphics.

2. The Keychain application will open and prompt you.

Add Certificates dialog asks to add incommonrsaserverca-bundle.crt to login keychain, with options to view, cancel, or add.

3. Select login from the Keychain: drop down and click Add

  •  If prompted to authenticate, enter your username and password

4. NOTE: You may need to also reinstall the Citrix Receiver client

Download Citrix Receiver client: http://downloadplugins.citrix.com/Mac/CitrixReceiverWeb.dmg

  • Open the file and run Install Citrix Receiver

  • If prompted, enter your credentials

How to install a Certificate in Linux

 1. Copy the certificate you downloaded to: /opt/Citrix/ICAClient/keystore/cacerts

                  sudo mv ~/Downloads/incommonrsaserverca-bundle.crt /opt/Citrix/ICAClient/keystore/cacerts/

 2. Change the read attributes of the certificate

                  sudo chmod ugo+r /opt/Citrix/ICAClient/keystore/cacerts/incommonrsaserverca-bundle.crt

 3. Close your browser to force the Citrix client to close. When it re-opens it should re-read the keystore folder.

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