passwd.conf(5) - NetBSD Manual Pages

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PASSWD.CONF(5)            NetBSD File Formats Manual            PASSWD.CONF(5)


NAME

     passwd.conf -- password encryption configuration file


SYNOPSIS

     passwd.conf


DESCRIPTION

     The /etc/passwd.conf file, consisting of ``stanzas'', describes the con-
     figuration of the password cipher used to encrypt local or YP passwords.

     There are default, user and group specific stanzas.  If no user or group
     stanza to a specific option is available, the default stanza is used.

     To differentiate between user and group stanzas, groups are prefixed with
     a single colon (`:').

     Some fields and their possible values that can appear in this file are:

     localcipher  The cipher to use for local passwords.  Possible values are:
                  ``old'', ``newsalt,<rounds>'', ``md5'', ``sha1,<rounds>'',
                  and ``blowfish,<rounds>''.  For ``newsalt'' the value of
                  rounds is a 24-bit integer with a minimum of 7250 rounds.
                  For ``sha1'' the value of rounds is a 32-bit integer, 0
                  means use the default of 24680.  For ``blowfish'' the value
                  can be between 4 and 31.  It specifies the base 2 logarithm
                  of the number of rounds.

     ypcipher     The cipher to use for YP passwords.  The possible values are
                  the same as for localcipher.

     To retrieve information from this file use pw_getconf(3).


FILES

     /etc/passwd.conf


EXAMPLES

     Use MD5 as the local cipher and old-style DES as the YP cipher.  Use
     blowfish with 2^5 rounds for root:

      default:
           localcipher = md5
           ypcipher = old

      root:
           localcipher = blowfish,5


SEE ALSO

     passwd(1), pwhash(1), pw_getconf(3), passwd(5)


HISTORY

     The passwd.conf configuration file first appeared in NetBSD 1.6.

NetBSD 4.0                     September 4, 2005                    NetBSD 4.0