correct
critical requirement from the client would be to supplyuser's password which is 
hashed by AS to secret-key which encrypts into generated TGSsecret-key which is 
later encrypted into TGT with secret-key 
http://en.wikipedia.org/wiki/Kerberos_(protocol)#Client_Authentication

Martin..
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 > From: mead....@con-way.com
> To: users@tomcat.apache.org
> Date: Mon, 4 Jun 2012 14:08:04 -0700
> Subject: RE: looking for help with getting tomcat 7 to authenticate aginst 
> windows domain controller from aix 6.1 and 5.3
> 
> Now that I am looking further into this, I am almost convinced that I don't 
> need Kerberos on the AIX webserver but only in the client (PC that is 
> accessing the pages that are going to authenticate).  I don't get the feeling 
> that many people are doing this (just using a keytab file with an AD account 
> and tweaking the conf files on the UNIX box where tomcat is installed).  This 
> is the only response so far. 
> Jen
> 
> -----Original Message-----
> From: Martin Gainty [mailto:mgai...@hotmail.com] 
> Sent: Monday, June 04, 2012 12:45 PM
> To: Tomcat Users List
> Subject: RE: looking for help with getting tomcat 7 to authenticate aginst 
> windows domain controller from aix 6.1 and 5.3
> 
> 
> assuming you're auth'ing against ADS then your Servlet will have to load a 
> ADS Authentication library and then extract auth creds to validate against 
> ADS..
> By the way ADS is native windows code so the only option to make ADS run on 
> AIX is thru a Windows Emulator such as WINEhttp://www.winehq.org/download And 
> yes if your ADS library forces Kerberos Authentication thru TC 
> NegotiateAuthenticator valve (such as waffle).. then the answer is yes you 
> will need to accomodate Kerberos Authentication Tokens 
> http://code.dblock.org/single-sign-on-tomcat-negotiate-authenticator-kerberos-ntlm-w-waffleKeep
>  in mind that the majority of ADS Libraries are written for native windows so 
> turn your radar on for1)32bit vs 64bit ADS Deployments
> 2)Specific .NET Framework implementations (v1 or v2 or v3) for ADS3)Threaded 
> vs non-threaded singleton library dependencies for ADS (keep the other 
> library off the path) //somewhere in your code you have a 
> javax.net.ssl.SSLSessionContext concrete class  .. then get the SSLSession 
> with your JSessionIDjavax.net.ssl.SSLSession 
> ssl_session=SSLSessionContext.getSession(JSessionID.getBytes()); //extract 
> PeerPrincipal from your SSLSessionjava.security.Principal principal 
> =(java.security.Principal) ssl_session.getPeerPrincipal();//test Principal 
> for Kerberos    if (principal instanceof KerberosPrincipal)
>    {
>                  serverName = 
> sun.security.util.HostnameChecker.getServerName((KerberosPrincipal)principal);
>     
> }http://www.docjar.com/html/api/sun/security/util/HostnameChecker.java.html
> i would not deploy on AIX and deploy on a windows box..far easier to load ADS 
> Server and ADS client code windows code to test on guys..any suggestions?
> Martin
> ______________________________________________
> Do not alter or disrupt this message..Thank You
> 
>  From: mead....@con-way.com
> To: users@tomcat.apache.org
> Date: Mon, 4 Jun 2012 11:42:38 -0700
> Subject: looking for help with getting tomcat 7 to authenticate aginst 
> windows domain controller from aix 6.1 and 5.3
> 
> Hi,   I am brand new to tomcat 7 and am hoping to get realms set-up for users 
> to use my CGI scripts using their windows password.  So far I have put a 
> request into the windows group to create a user for this verification.  I 
> followed the example in the tomcat manual as follows:Create a domain user 
> that will be mapped to the service name used by the Tomcat server. In this 
> how-to, this user is called tc01 and has a password of tc01pass.Map the 
> service principal name (SPN) to the user account. SPNs take the form <service 
> class>/<host>:<port>/<service name>. The SPN used in this how-to is 
> HTTP/win-tc01.dev.local. To map the user to the SPN, run the following: 
> setspn -A HTTP/win-tc01.dev.local tc01Generate the keytab file that the 
> Tomcat server will use to authenticate itself to the domain controller. This 
> file contains the Tomcat private key for the service provider account and 
> should be protected accordingly. To generate the file, run the following 
> command (all on a single line): ktpass /out c:\tomcat.keytab /mapuser 
> tc01@DEV.LOCAL          /princ HTTP/win-tc01.dev.local@DEV.LOCAL          
> /pass tc01pass /kvno 0Create a domain user to be used on the client. In this 
> how-to the domain user is test with a password of testpass.I then went into 
> the next section and started to do some configuration on the tomcat server, 
> which right now is a prototype and is an AIX box running 5300-12-04-1119. My 
> question is: does the box need to be configured for Kerberos?  If so how does 
> the Kerberos authentication work with tomcat?  The above code sent to the 
> windows group creates a tomcat user, should there also be a Kerberos user?  
> How would they work together?  Or do they need to?  Should they be the same 
> user?  The documentation does not address this situation in any way at all 
> except to specify that Kerberos is required on the unix box, it doesn't 
> address AIX specifically ever.   I work at a place where the admin team is 
> half way around the world.  So each and every request and test is 
> painstakingly long and obscure for the most part.  So any and all information 
> I come armed with is the only way to fly.  Has anyone succeeded with this on 
> unix or better yet AIX?  Any and all information is greatly appreciated. 
> Regards,Jen in Oregon   Regards,Jen                                       
> 
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