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Home > Art, Film & Photography > Unix Authentication-Related Software: Pluggable Authentication Modules, Passwd, Group
Unix Authentication-Related Software: Pluggable Authentication Modules, Passwd, Group

Unix Authentication-Related Software: Pluggable Authentication Modules, Passwd, Group


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About the Book

Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Not illustrated. Excerpt: Pluggable authentication modules, or PAM, is a mechanism to integrate multiple low-level authentication schemes into a high-level application programming interface (API). It allows programs that rely on authentication to be written independent of the underlying authentication scheme. PAM was first proposed by Sun Microsystems in an Open Software Foundation Request for Comments (RFe 86.0 dated October 1995. It was adopted as the authentication framework of the Common Desktop Environment. As a stand-alone infrastructure, PAM first appeared from an open-source, Linux-PAM, development in Red Hat Linux 3.0.4 in August 1996. PAM is currently supported in the AIX operating system, DragonFly BSD, FreeBSD, HP-UX, Linux, Mac OS X, NetBSD and Solaris. PAM was later standardized as part of the X/Open UNIX standardization process, resulting in the X/Open Single Sign-on (XSSO) standard. The XSSO standard differs from both the original RFC, and from the Linux and Sun APIs from most other implementations. Also, they are not implemented similarly. For these and other reasons, OpenBSD has chosen to adopt BSD Authentication, which is an alternative authentication framework, originally from BSD/OS. Despite PAM being part of the X/Open Single Sign-on (XSSO) standard, PAM on its own cannot implement Kerberos, the most common type of SSO used in Unix environments. Due to limits of the PAM API, it is not possible for a pam module to request a Kerberos service ticket from a Kerberos Key Distribution Center (KDe, allowing the user to utilize the application without re-authenticating. pam_krb5 only fetches ticket granting tickets, which involves prompting the user for credentials and are only used for initial login in an SSO environment. To fetch a s... More: http://booksllc.net/?id=661648


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Product Details
  • ISBN-13: 9781158289011
  • Publisher: Books LLC
  • Publisher Imprint: Books LLC
  • Height: 152 mm
  • Sub Title: Pluggable Authentication Modules, Passwd, Group
  • Width: 229 mm
  • ISBN-10: 1158289014
  • Publisher Date: 19 Jun 2010
  • Binding: Paperback
  • Spine Width: 1 mm
  • Weight: 45 gr


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