I belive that you can set this in the cas.properties file:

 

##

# Service Ticket Timeout

# Default sourced from WEB-INF/spring-configuration/ticketExpirationPolices.xml

#

# Service Ticket timeout - typically kept short as a control against replay 
attacks, default is 10s.  You'll want to

# increase this timeout if you are manually testing service ticket 
creation/validation via tamperdata or similar tools

# st.timeToKillInSeconds=10

 

From: Hendrik Coetzee [mailto:[email protected]] 
Sent: Friday, January 25, 2013 2:24 AM
To: [email protected]
Subject: RE: [cas-user] Ticket validation failed when IP changed ?

 

Looks correct on this – Thanks !

 

>From “serviceTicketExpirationPolicy.xml” default set to…

 

    <util:constant id="SECONDS" 
static-field="java.util.concurrent.TimeUnit.SECONDS"/>

    <bean id="serviceTicketExpirationPolicy" 
class="org.jasig.cas.ticket.support.MultiTimeUseOrTimeoutExpirationPolicy"

          c:numberOfUses="1" c:timeToKill="${st.timeToKillInSeconds:10}" 
c:timeUnit-ref="SECONDS"/>

 

Changing to a minute and keeping an eye on responses on log-file.

 

Perfect !

 

Cheers

 

From: Ohsie, David [mailto:[email protected]] 
Sent: 24 January 2013 05:44 PM
To: [email protected]
Subject: RE: [cas-user] Ticket validation failed when IP changed ?

 

> Thanks gents,

 

> As stated this is not a problem happening continuously, but today we had an 
> occurrence of 26 vs. 3514 successful logins.

> Also I ruled out the timeout as seen on the log, it is within minutes of the 
> original request...

 

The default ST (Service Ticket) expiration period is very short (10 seconds).  
In your example below, the delay to validate the ticket is 20 seconds.   It 
makes perfect sense that you see this only intermittently, because only 
intermittently will you see validations that take  more than the ST expiration 
interval.

 

I suggest bumping up your ST expiration period to 1 minute or so.   You can 
parse through the logs to see how long ST validations are taking and adjust 
appropriately.

 

> One of the differences that is apparent is the differing IP's, but I am 
> unsure if changing IP's causes ticket validation to fail ?

 

> Any clues appreciated.

 

David Ohsie

Software Architect

EMC Corporation

 

 

From: Dmitriy Kopylenko [mailto:[email protected]] 
Sent: Thursday, January 24, 2013 6:57 AM
To: [email protected]
Subject: Re: [cas-user] Ticket validation failed when IP changed ?

 

>From the log entries, it seems that the ST in question has expired, therefore 
>it is considered invalid.

 

Dmitriy.

Sent from my iPhone


On Jan 24, 2013, at 4:45, Hendrik Coetzee <[email protected]> wrote:

Good day,

 

We have an intermitted error that appears on ticket expiry,

here is what we can see in the logs  from the catalina.out file:

2013-01-23 14:54:05,556 INFO [org.jasig.cas.CentralAuthenticationServiceImpl] - 
<Granted service ticket [ST-13215-bAqdKgJd2dOR6xObAnYn-srvslscas001.uct.ac.za] 
for service [https://vula.uct.ac.za:443/sakai-login-tool/container] for user 
[<userid>]>

2013-01-23 14:54:05,557 INFO 
[com.github.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN

=============================================================

WHO: <userid>

WHAT: ST-13215-bAqdKgJd2dOR6xObAnYn-srvslscas001.uct.ac.za for 
https://vula.uct.ac.za:443/sakai-login-tool/container

ACTION: SERVICE_TICKET_CREATED

APPLICATION: CAS

WHEN: Wed Jan 23 14:54:05 SAST 2013

CLIENT IP ADDRESS: 93.186.23.81

SERVER IP ADDRESS: 137.158.154.74

=============================================================

2013-01-23 14:54:25,982 INFO [org.jasig.cas.CentralAuthenticationServiceImpl] - 
<ServiceTicket [ST-13215-bAqdKgJd2dOR6xObAnYn-srvslscas001.uct.ac.za] has 
expired.>

2013-01-23 14:54:25,982 INFO 
[com.github.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - <Audit 
trail record BEGIN

=============================================================

WHO: audit:unknown

WHAT: ST-13215-bAqdKgJd2dOR6xObAnYn-srvslscas001.uct.ac.za

ACTION: SERVICE_TICKET_VALIDATE_FAILED

APPLICATION: CAS

WHEN: Wed Jan 23 14:54:25 SAST 2013

CLIENT IP ADDRESS: 137.158.155.16

SERVER IP ADDRESS: 137.158.154.74

=============================================================

 

On the Apache side the following can be detected:

 

[23/Jan/2013:14:54:25 +0200] 93.186.31.83 TLSv1 DHE-RSA-AES128-SHA "GET 
/sakai-login-tool/container?ticket=ST-13215-bAqdKgJd2dOR6xObAnYn-srvslscas001.uct.ac.za
 HTTP/1.1" 749 
"https://login.uct.ac.za/cas/login?service=https%3A%2F%2Fvula.uct.ac.za%3A443%2Fsakai-login-tool%2Fcontainer";
 "Mozilla/5.0 (BlackBerry; U; BlackBerry 9900; en-GB) AppleWebKit/534.11+ 
(KHTML, like Gecko) Version/7.1.0.342 Mobile Safari/534.11+" 13467 13364 500

 

Sakai tomcat app server logs:

 

2013-01-23 14:54:25,987 WARN ajp-bio-8009-exec-723 
org.jasig.cas.client.validation.Cas20ProxyReceivingTicketValidationFilter - 
org.jasig.cas.client.validation.TicketValidationException:

                ticket 'ST-13215-bAqdKgJd2dOR6xObAnYn-srvslscas001.uct.ac.za' 
not recognized

 

org.jasig.cas.client.validation.TicketValidationException:

                ticket 'ST-13215-bAqdKgJd2dOR6xObAnYn-srvslscas001.uct.ac.za' 
not recognized

 

        at 
org.jasig.cas.client.validation.Cas20ServiceTicketValidator.parseResponseFromServer(Cas20ServiceTicketValidator.java:86)

        at 
org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:217)

        at 
org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:165)

        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

        at 
org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:116)

        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

        at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:695)

        at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

        at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)

        at 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)

        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)

        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)

        at 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)

        at 
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)

        at 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

        at 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)

        at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)

        at 
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)

        at 
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)

        at 
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)

        at java.lang.Thread.run(Thread.java:662

 

Any ideas on what could be causing this ?

 

Current Configuration:

CAS      3.5.1

Mysql  5.0.96

Maven 3.0.4

Tomcat 7.0.28

Jdk 1.7.0_06

 

Thanks

 

Bernard

 

 


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