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Diffstat (limited to 'modules/pam_userdb/pam_userdb.8')
| -rw-r--r-- | modules/pam_userdb/pam_userdb.8 | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/modules/pam_userdb/pam_userdb.8 b/modules/pam_userdb/pam_userdb.8 new file mode 100644 index 0000000..fc00278 --- /dev/null +++ b/modules/pam_userdb/pam_userdb.8 @@ -0,0 +1,158 @@ +'\" t +.\" Title: pam_userdb +.\" Author: [see the "AUTHOR" section] +.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/> +.\" Date: 09/03/2021 +.\" Manual: Linux-PAM Manual +.\" Source: Linux-PAM Manual +.\" Language: English +.\" +.TH "PAM_USERDB" "8" "09/03/2021" "Linux-PAM Manual" "Linux\-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * Define some portability stuff +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" http://bugs.debian.org/507673 +.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- +.\" disable hyphenation +.nh +.\" disable justification (adjust text to left margin only) +.ad l +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "NAME" +pam_userdb \- PAM module to authenticate against a db database +.SH "SYNOPSIS" +.HP \w'\fBpam_userdb\&.so\fR\ 'u +\fBpam_userdb\&.so\fR db=\fI/path/database\fR [debug] [crypt=[crypt|none]] [icase] [dump] [try_first_pass] [use_first_pass] [unknown_ok] [key_only] +.SH "DESCRIPTION" +.PP +The pam_userdb module is used to verify a username/password pair against values stored in a Berkeley DB database\&. The database is indexed by the username, and the data fields corresponding to the username keys are the passwords\&. +.SH "OPTIONS" +.PP +\fBcrypt=[crypt|none]\fR +.RS 4 +Indicates whether encrypted or plaintext passwords are stored in the database\&. If it is +\fBcrypt\fR, passwords should be stored in the database in +\fBcrypt\fR(3) +form\&. If +\fBnone\fR +is selected, passwords should be stored in the database as plaintext\&. +.RE +.PP +\fBdb=\fR\fB\fI/path/database\fR\fR +.RS 4 +Use the +/path/database +database for performing lookup\&. There is no default; the module will return +\fBPAM_IGNORE\fR +if no database is provided\&. Note that the path to the database file should be specified without the +\&.db +suffix\&. +.RE +.PP +\fBdebug\fR +.RS 4 +Print debug information\&. Note that password hashes, both from db and computed, will be printed to syslog\&. +.RE +.PP +\fBdump\fR +.RS 4 +Dump all the entries in the database to the log\&. Don\*(Aqt do this by default! +.RE +.PP +\fBicase\fR +.RS 4 +Make the password verification to be case insensitive (ie when working with registration numbers and such)\&. Only works with plaintext password storage\&. +.RE +.PP +\fBtry_first_pass\fR +.RS 4 +Use the authentication token previously obtained by another module that did the conversation with the application\&. If this token can not be obtained then the module will try to converse\&. This option can be used for stacking different modules that need to deal with the authentication tokens\&. +.RE +.PP +\fBuse_first_pass\fR +.RS 4 +Use the authentication token previously obtained by another module that did the conversation with the application\&. If this token can not be obtained then the module will fail\&. This option can be used for stacking different modules that need to deal with the authentication tokens\&. +.RE +.PP +\fBunknown_ok\fR +.RS 4 +Do not return error when checking for a user that is not in the database\&. This can be used to stack more than one pam_userdb module that will check a username/password pair in more than a database\&. +.RE +.PP +\fBkey_only\fR +.RS 4 +The username and password are concatenated together in the database hash as \*(Aqusername\-password\*(Aq with a random value\&. if the concatenation of the username and password with a dash in the middle returns any result, the user is valid\&. this is useful in cases where the username may not be unique but the username and password pair are\&. +.RE +.SH "MODULE TYPES PROVIDED" +.PP +The +\fBauth\fR +and +\fBaccount\fR +module types are provided\&. +.SH "RETURN VALUES" +.PP +PAM_AUTH_ERR +.RS 4 +Authentication failure\&. +.RE +.PP +PAM_AUTHTOK_RECOVERY_ERR +.RS 4 +Authentication information cannot be recovered\&. +.RE +.PP +PAM_BUF_ERR +.RS 4 +Memory buffer error\&. +.RE +.PP +PAM_CONV_ERR +.RS 4 +Conversation failure\&. +.RE +.PP +PAM_SERVICE_ERR +.RS 4 +Error in service module\&. +.RE +.PP +PAM_SUCCESS +.RS 4 +Success\&. +.RE +.PP +PAM_USER_UNKNOWN +.RS 4 +User not known to the underlying authentication module\&. +.RE +.SH "EXAMPLES" +.sp +.if n \{\ +.RS 4 +.\} +.nf +auth sufficient pam_userdb\&.so icase db=/etc/dbtest + +.fi +.if n \{\ +.RE +.\} +.SH "SEE ALSO" +.PP +\fBcrypt\fR(3), +\fBpam.conf\fR(5), +\fBpam.d\fR(5), +\fBpam\fR(8) +.SH "AUTHOR" +.PP +pam_userdb was written by Cristian Gafton >gafton@redhat\&.com<\&. |