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RedHat 9 (Linux i386) - man page for lppasswd (redhat section 1)

lppasswd(1)						      Easy Software Products						       lppasswd(1)

lppasswd - add, change, or delete digest passwords.
lppasswd [ -a ] [ -g groupname ] [ -x ] [ username ]
lppasswd adds, changes, or deletes passwords in the CUPS digest password file, passwd.md5. When run by a normal user, lppasswd will prompt for the old and new passwords. When run by the super-user, lppasswd can add new accounts (-a username), change existing accounts (user- name), or delete accounts (-x username) in the digest password file. Digest usernames do not have to match local UNIX usernames, but only UNIX usernames are supported by the CUPS client programs (lp(1), lpr(1), etc.) The -g option specifies a group other than the system group - "sys", "system", or "root", depending on the operating system.
The lppasswd command is installed setuid to root. While every attempt has been made to make it secure against exploits that could grant super-user priviledges to unpriviledged users, paranoid system administrators may wish to disable or change the ownership of the program to an unpriviledged account.
lp(1), lpr(1), CUPS Software Administrators Manual, CUPS Software Users Manual, http://localhost:631/documentation.html
Copyright 1993-2002 by Easy Software Products, All Rights Reserved. 7 June 2001 Common UNIX Printing System lppasswd(1)