# CAS Authentication

**URL:** <https://www.ruby-forum.com/t/cas-authentication/188126>\
**Category:** Rails\
**Created:** [May 6, 2010, 9:05am UTC](https://www.ruby-forum.com/t/cas-authentication/188126 "2010-05-06T09:05:16Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![blair](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/c37758/32.png) [@blair](https://www.ruby-forum.com/u/blair)\
**Post date:** [May 6, 2010, 9:05am UTC](https://www.ruby-forum.com/t/cas-authentication/188126/1 "2010-05-06T09:05:16Z")

</div>

So I have recently tried authenticating to a cas server for a project,  
and every time I try to access my cas server it returns

SSL\_connect returned=1 errno=0 state=SSLv3 read server certificate B:  
certificate verify failed

Now I am using the CAS gem found here  
[http://rubycas-client.rubyforge.org/](http://rubycas-client.rubyforge.org/)

I know the certificate on the CAS server is valid and correct, and i am  
new to RoR  
any help?