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 pdfck(1M)							   pdfck(1M)




 NAME
      pdfck - compare Product Description File to File System

 SYNOPSIS
      pdfck [-n] [-r alternate_root] PDF

 DESCRIPTION
      pdfck is a program that compares the file descriptions in a PDF
      (Product Description File) to the actual files on the file system.  It
      is intended as a tool to audit the file system and detect corruption
      and/or tampering.	 Differences found are reported in the format
      described in the pdfdiff(1M) manual entry.  (Size growth (-p option)
      is not reported.) For a detailed explanation of the PDF fields see
      pdf(4).  The command

	   pdfck -r /pseudoroot /system/AL_CORE/pdf

      is roughly equivalent to

	   mkpdf -r /pseudoroot /system/AL_CORE/pdf - | \
	   pdfdiff /system/AL_CORE/pdf -

    Options
      pdfck recognizes the following options:

	   -n		       Compare numerical representation of user id
			       uid and group id gid of each file, instead of
			       the usual text representation.  If owner or
			       group is recorded in the PDF as a name, look
			       the name up in the /etc/passwd or /etc/group
			       file, respectively, to find the id number.

	   -r alternate_root   alternate_root is a string that is prefixed
			       to each pathname in the prototype when the
			       filesystem is being searched for that file.
			       Default is NULL.

 EXAMPLES
      The following output indicates tampering with /usr/bin/cat:

	   /usr/bin/cat: mode(-r-xr-xr-x -> -r-sr-xr-x)(became suid), size(27724 -> 10345),
		checksum(1665 -> 398)

 WARNING
      Use of PDFs is discouraged since this functionality is obsolete and is
      being replaced with Software Distributor (see sd(4)).

 FILES
      /system/fileset_name/pdf	       Product Description File of fileset
				       called fileset_name.




 Hewlett-Packard Company	    - 1 -   HP-UX Release 11i: November 2000






 pdfck(1M)							   pdfck(1M)




 SEE ALSO
      mkpdf(1M), pdfdiff(1M), pdf(4).




















































 Hewlett-Packard Company	    - 2 -   HP-UX Release 11i: November 2000