HP-UX 11i June 2004 Release Notes

HP-UX 11i Version 1 Operating Environment Applications
HP-UX 11i v1 Foundation Operating Environment
Chapter 6
131
HP-UX system entry services can work with any Kerberos v5 Server, namely, MIT
Kerberos and Microsoft Windows 2000. Thus, passwords can be effectively unified in an
Intranet with heterogeneous systems such as UNIX and Microsoft Windows 2000.
Furthermore, support of password change protocol has been implemented. These two
features can significantly reduce user administration complexity in a heterogeneous
environment.
The HP-UX applications using PAM include telnet, login, remsh, ftp, rexec, rlogin,
dtlogin, and rcp. PAM Kerberos interoperates with a Key Distribution Center (KDC)
operating on either a UNIX or a Microsoft Windows 2000 server.
The PAM Kerberos module is compliant with IETF RFC 1510 and Open Group RFC
86.0. PAM Kerberos is also available under the product number J5849AA on the
Applications Software CD. This product provides a libpam_krb5.1 library, a pam_krb5
(1) manpage, and a release note document.
updated for
September 2002
Now included with PAM Kerberos is the pamkrb5val tool, which will help
administrators validate the PAM Kerberos setup. The tool validates the following files
for PAM Kerberos-related entries:
• /etc/pam.conf
• /etc/pam_user.conf
• /etc/krb5.conf
• /etc/krb5.keytab
Also included is a sample pam.conf file.
Installation Requirements
The minimum disk space required to install the product is 1MB. Additional disk space of
about 1KB per user in the system /tmp file is required to store initial Ticket Granting
Tickets in the credential cache file.
Impact
HP-UX PAM Kerberos is implemented under the PAM framework, which allows the new
authentication service module to be plugged in and made available without modifying
the application or rebooting the system.
PAM Kerberos works on HP servers and workstations with a minimum of 32MB of
memory and sufficient swap space (a minimum of 50MB is recommended).
NOTE PAM Kerberos is not thread safe.
Coexistence Issues
PAM Kerberos (libpam_krb5.1) and PAM DCE (libpam_dce.1) plug-in modules can not
be stacked together in the pam.conf file because of different principal styles and
credential file paths. If so stacked, the results will be unpredictable.
If the password has expired on a Microsoft Windows 2000 KDC, you will not be asked for
a new password and will not be allowed to log in. When changing passwords on a MIT
KDC with a version prior to 1.1, up to 45 seconds may elapse before the password is
actually changed due to the selection mechanism of the change password protocol.