PASSWD.CONF(5) BSD File Formats Manual PASSWD.CONF(5)NAMEpasswd.conf — password encryption configuration file
SYNOPSISpasswd.confDESCRIPTION
The /etc/passwd.conf file, consisting of “stanzas”, describes the config‐
uration 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.
If not specified, the default value is “old”.
ypcipher The cipher to use for YP passwords.
The possible values are the same as for localcipher.
If not specified, the default value is “old”.
To retrieve information from this file use pw_getconf(3).
FILES
/etc/passwd.conf
EXAMPLES
Use SHA1 as the local cipher and old-style DES as the YP cipher. Use
blowfish with 2^5 rounds for root:
default:
localcipher = sha1
ypcipher = old
root:
localcipher = blowfish,5
SEE ALSOpasswd(1), pwhash(1), pw_getconf(3), passwd(5)HISTORY
The passwd.conf configuration file first appeared in NetBSD 1.6.
The default value of localcipher was set to “sha1” in /etc/passwd.conf
starting from NetBSD 6.0.
BSD December 3, 2010 BSD