Introduction We have various web servers running on 5.5. We have approximately 200 users who authenticate to the University domain every morning when they sit down at their Windows computers and log-in. Ibm usb serial parallel adapter 22p9036 cable.

May 24, 2009 - In this short tutorial we'll set up Kerberos and Apache in a Windows 2003. Apt-get install apache2-mpm-prefork libapache2-mod-auth-kerb.

It would be great if we could “pass-through” that authentication to the Apache web servers so that our users do not have to log in again. Second, we want to check that they are authorized to access various resources on the web server. The first part, SSO authentication, is handled via mod_auth_kerb; the second part, authorization to use particular resources, is handled via mod_authnz_ldap. Mod_authnz_ldap is bundled with Apache 2.2. We will have to build a new version of mod_auth_kerb from source to get a feature that we need to make this work. While this has been documented in a number of places on the web, it took me a long time to get all of the pieces to work together, so I’m going to document our approach. I’ll start with a list of some of the resources that I consulted while getting this to work: • Scott Lowe: • Achim Groims: •: Configuration • page on SourceForge • on and LDAP.

Published by Ben Chapman Assistant Dean for Information Technology, Emory University School of Law, Atlanta, Georgia. Higher education information technology professional with 15 years of experience using Linux and related open-source technologies in mixed-platform law school environments. Experienced planner and manager with J.D. Degree and more than five years as a practicing attorney at mid-sized AV-rated law firm. Disclaimer: Any articles that I write are not legal advice and do not serve to create an attorney-client relationship. I am not licensed to practice law in the State of Georgia. Post navigation.

Setup Kerberos Install MIT Kerberos. On Ubuntu the package manager can install this: sudo apt-get install krb5-user The dependencies for this package will provide the rest of the required files. Edit /etc/krb5.conf [libdefaults] default_realm = ACME.LOCAL [domain_realm] acme.local = ACME.LOCAL [realms] ACME.LOCAL = { kdc = win2k3.acme.local admin_server = win2k3.acme.local Test your Kerberos configuration so far: • Ensure that you can ping between the Windows 2003 server and the linux server in both directions and using both the fully-qualified domain name (win2k3.acme.local) and the IP address. Note: You must be able to ping your Windows 2003 KDC using the fully-qualified domain name from the linux host. In the unlikely event you have mDNS enabled this will fail if your Active Directory domain ends in.local. If you try to work around the name resolution issue by entering the IP address in krb5.conf, the next test will succeed but Apache authentication will fail later with 'No principal in keytab matches desired name' in the Apache error log. Vray plugin for 3ds max 2012 free download 32 bit free.

• In a shell type kinit.LOCAL, entering an Active Directory username you know. If it is successful it will ask for the account's password and then exit without an error.

Use klist to view the Kerberos ticket that was just added to the machine. Setting up a keytab file Now switch to your Windows 2003 server and create a user account that will represent the HTTP service on the linux server. Let's use wikikerb. We will use ktpass from the Windows 2003 Support Kit to create a keytab file the linux server will need.

At the command line, enter ktpass /out c: my.keytab /mapuser HTTP-user@acme.local /princ HTTP/wikisvr.acme.local@ACME.LOCAL /crypto RC4-HMAC-NT /pass passw0rd /ptype KRB5_NT_PRINCIPAL Note: Even if you created a CNAME to redirect wiki.acme.com to wikisvr.acme.local, and all your users will be entering wiki.acme.com, the principal name ( -princ) must still use the canonical DNS name. This will not affect what your users need to type to get to the site. Copy the keytab file to the linux server and place it in /etc/apache2. Test the keytab file like so: kinit -k -t /etc/apache2/http.keytab HTTP/wikisvr.acme.local This should exit without any error messages, and this Kerberos ticket will now appear in klist. If you want to purge the ticket cache use kdestroy.

Alternatively, instead of using kinit, proceed to configuring mod_auth_kerb for Apache. For more information see the guide at. Setup mod-auth-kerb Once again the package manager works wonders: sudo apt-get install libapache2-mod-auth-kerb In /etc/apache2/conf.d/twiki.conf, add the entries for Kerberos authentication. Enter # in front of AuthType basic to disable plain text authentication. Order Deny, Allow Allow from all AuthType Kerberos KrbAuthRealms ACME.LOCAL KrbServiceName HTTP Krb5Keytab /etc/apache2/http.keytab KrbMethodNegotiate on KrbMethodK5Passwd on Require valid-user. NewUserPlugin The works great with this setup, and creates the user page when they first login by copying a template and filling in their details from LDAP. -- Contributor:, - 05 Dec 2009-12-28 Comments & Questions about this Supplemental Document Topic Thanks Matt for contributing this topic.