Internet Explorer: How to handle invalid security certificates ?¶
When accessing for the first time Community Single Sign-On (CSSO) enabled web sites like
the Internet Explorer will certainly announce The following Security Alert dialog.
If you want to omit this warning in the future,
- Select the radio button In the future, do not show this warning
- Push the button OK to leave this dialog
The following steps differ a little bit, depending on the version of your Internet Explorer installation
Internet Explorer 6
- Push the button View Certificate
*Internet Explorer 7 & 8 *
- Click on the link Continue to this website (not recommended)
Click into the red field Certificate Error to the right of the URL at the top of the window
Now, the Untrusted Certificate dialog will appear
Click on the link View Certificates
From here, the following steps are identical to all Internet Explorer versions, since they are part of the Windows Operating System implementation. The following images are taken from a Windows XP installation.
The Certificate dialog should open
Switch to the tab Details
Within the list, scroll down until you reach the entry Thumbprint and click on that entry
In a second browser window, open the EDIT WP 5.7 Certification Authority page and look for the SHA-1 fingerprint of the server you currently wanted to access
Compare the Thumbprint value with the value for the SHA-1 fingerprint of the current server in the EDIT WP 5.7 Certification Authority page.
Note: Proceed only, if the fingerprints are identical. Otherwise, inform the firstname.lastname@example.org EDIT Support Team immediately !
Switch back to the tab General
Push the button Install Certificate
- This starts the Certificate Import Wizard. Just push the button Next
Verify, that the radio button Automatically select the certificate store based on the type of certificate is selected
Push the button Next
You may verify your settings again
Leave the Certificate Import Wizard by pushing the button Finish
The certificate should be successfully installed now.
Finish the Certificate Import Wizard by pushing the button OK
- Close the Certificate dialog by pushing the button Close.
Internet Explorer 6
- Now, You can close the Security Alert dialog too by pushing the button Yes
From now on, you should never be minded by an security alert for this server.
But, you will have to repeat these steps once for each other Community Single Sign-On (CSSO) enabled web sites you did not have visited before !