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Diffstat (limited to 'modules/pam_tally/pam_tally.8')
| -rw-r--r-- | modules/pam_tally/pam_tally.8 | 325 |
1 files changed, 257 insertions, 68 deletions
diff --git a/modules/pam_tally/pam_tally.8 b/modules/pam_tally/pam_tally.8 index 205b7663..fcac596b 100644 --- a/modules/pam_tally/pam_tally.8 +++ b/modules/pam_tally/pam_tally.8 @@ -1,34 +1,194 @@ .\" Title: pam_tally -.\" Author: -.\" Generator: DocBook XSL Stylesheets v1.73.1 <http://docbook.sf.net/> -.\" Date: 04/16/2008 +.\" Author: [see the "AUTHOR" section] +.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/> +.\" Date: 06/16/2009 .\" Manual: Linux-PAM Manual .\" Source: Linux-PAM Manual +.\" Language: English .\" -.TH "PAM_TALLY" "8" "04/16/2008" "Linux-PAM Manual" "Linux\-PAM Manual" +.TH "PAM_TALLY" "8" "06/16/2009" "Linux-PAM Manual" "Linux\-PAM Manual" +.\" ----------------------------------------------------------------- +.\" * (re)Define some macros +.\" ----------------------------------------------------------------- +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" toupper - uppercase a string (locale-aware) +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.de toupper +.tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ +\\$* +.tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz +.. +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" SH-xref - format a cross-reference to an SH section +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.de SH-xref +.ie n \{\ +.\} +.toupper \\$* +.el \{\ +\\$* +.\} +.. +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" SH - level-one heading that works better for non-TTY output +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.de1 SH +.\" put an extra blank line of space above the head in non-TTY output +.if t \{\ +.sp 1 +.\} +.sp \\n[PD]u +.nr an-level 1 +.set-an-margin +.nr an-prevailing-indent \\n[IN] +.fi +.in \\n[an-margin]u +.ti 0 +.HTML-TAG ".NH \\n[an-level]" +.it 1 an-trap +.nr an-no-space-flag 1 +.nr an-break-flag 1 +\." make the size of the head bigger +.ps +3 +.ft B +.ne (2v + 1u) +.ie n \{\ +.\" if n (TTY output), use uppercase +.toupper \\$* +.\} +.el \{\ +.nr an-break-flag 0 +.\" if not n (not TTY), use normal case (not uppercase) +\\$1 +.in \\n[an-margin]u +.ti 0 +.\" if not n (not TTY), put a border/line under subheading +.sp -.6 +\l'\n(.lu' +.\} +.. +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" SS - level-two heading that works better for non-TTY output +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.de1 SS +.sp \\n[PD]u +.nr an-level 1 +.set-an-margin +.nr an-prevailing-indent \\n[IN] +.fi +.in \\n[IN]u +.ti \\n[SN]u +.it 1 an-trap +.nr an-no-space-flag 1 +.nr an-break-flag 1 +.ps \\n[PS-SS]u +\." make the size of the head bigger +.ps +2 +.ft B +.ne (2v + 1u) +.if \\n[.$] \&\\$* +.. +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" BB/BE - put background/screen (filled box) around block of text +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.de BB +.if t \{\ +.sp -.5 +.br +.in +2n +.ll -2n +.gcolor red +.di BX +.\} +.. +.de EB +.if t \{\ +.if "\\$2"adjust-for-leading-newline" \{\ +.sp -1 +.\} +.br +.di +.in +.ll +.gcolor +.nr BW \\n(.lu-\\n(.i +.nr BH \\n(dn+.5v +.ne \\n(BHu+.5v +.ie "\\$2"adjust-for-leading-newline" \{\ +\M[\\$1]\h'1n'\v'+.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[] +.\} +.el \{\ +\M[\\$1]\h'1n'\v'-.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[] +.\} +.in 0 +.sp -.5v +.nf +.BX +.in +.sp .5v +.fi +.\} +.. +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.\" BM/EM - put colored marker in margin next to block of text +.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +.de BM +.if t \{\ +.br +.ll -2n +.gcolor red +.di BX +.\} +.. +.de EM +.if t \{\ +.br +.di +.ll +.gcolor +.nr BH \\n(dn +.ne \\n(BHu +\M[\\$1]\D'P -.75n 0 0 \\n(BHu -(\\n[.i]u - \\n(INu - .75n) 0 0 -\\n(BHu'\M[] +.in 0 +.nf +.BX +.in +.fi +.\} +.. +.\" ----------------------------------------------------------------- +.\" * set default formatting +.\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l -.SH "NAME" -pam_tally - The login counter (tallying) module -.SH "SYNOPSIS" -.HP 13 -\fBpam_tally\.so\fR [file=\fI/path/to/counter\fR] [onerr=[\fIfail\fR|\fIsucceed\fR]] [magic_root] [even_deny_root_account] [deny=\fIn\fR] [lock_time=\fIn\fR] [unlock_time=\fIn\fR] [per_user] [no_lock_time] [no_reset] [audit] -.HP 10 +.\" ----------------------------------------------------------------- +.\" * MAIN CONTENT STARTS HERE * +.\" ----------------------------------------------------------------- +.SH "Name" +pam_tally \- The login counter (tallying) module +.SH "Synopsis" +.fam C +.HP \w'\fBpam_tally\&.so\fR\ 'u +\fBpam_tally\&.so\fR [file=\fI/path/to/counter\fR] [onerr=[\fIfail\fR|\fIsucceed\fR]] [magic_root] [even_deny_root_account] [deny=\fIn\fR] [lock_time=\fIn\fR] [unlock_time=\fIn\fR] [per_user] [no_lock_time] [no_reset] [audit] [silent] [no_log_info] +.fam +.fam C +.HP \w'\fBpam_tally\fR\ 'u \fBpam_tally\fR [\-\-file\ \fI/path/to/counter\fR] [\-\-user\ \fIusername\fR] [\-\-reset[=\fIn\fR]] [\-\-quiet] +.fam .SH "DESCRIPTION" .PP -This module maintains a count of attempted accesses, can reset count on success, can deny access if too many attempts fail\. +This module maintains a count of attempted accesses, can reset count on success, can deny access if too many attempts fail\&. .PP pam_tally comes in two parts: -\fBpam_tally\.so\fR +\fBpam_tally\&.so\fR and -\fBpam_tally\fR\. The former is the PAM module and the latter, a stand\-alone program\. +\fBpam_tally\fR\&. The former is the PAM module and the latter, a stand\-alone program\&. \fBpam_tally\fR -is an (optional) application which can be used to interrogate and manipulate the counter file\. It can display users\' counts, set individual counts, or clear all counts\. Setting artificially high counts may be useful for blocking users without changing their passwords\. For example, one might find it useful to clear all counts every midnight from a cron job\. The +is an (optional) application which can be used to interrogate and manipulate the counter file\&. It can display users\' counts, set individual counts, or clear all counts\&. Setting artificially high counts may be useful for blocking users without changing their passwords\&. For example, one might find it useful to clear all counts every midnight from a cron job\&. The \fBfaillog\fR(8) -command can be used instead of pam_tally to to maintain the counter file\. +command can be used instead of pam_tally to to maintain the counter file\&. .PP Normally, failed attempts to access \fIroot\fR @@ -36,7 +196,7 @@ will \fBnot\fR cause the root account to become blocked, to prevent denial\-of\-service: if your users aren\'t given shell accounts and root may only login via \fBsu\fR -or at the machine console (not telnet/rsh, etc), this is safe\. +or at the machine console (not telnet/rsh, etc), this is safe\&. .SH "OPTIONS" .PP GLOBAL OPTIONS @@ -45,93 +205,104 @@ This can be used for \fIauth\fR and \fIaccount\fR -services\. +module types\&. .PP \fBonerr=[\fR\fB\fIfail\fR\fR\fB|\fR\fB\fIsucceed\fR\fR\fB]\fR .RS 4 If something weird happens (like unable to open the file), return with -\fBPAM_SUCESS\fR +\fBPAM_SUCCESS\fR if \fBonerr=\fR\fB\fIsucceed\fR\fR -is given, else with the corresponding PAM error code\. +is given, else with the corresponding PAM error code\&. .RE .PP \fBfile=\fR\fB\fI/path/to/counter\fR\fR .RS 4 -File where to keep counts\. Default is -\fI/var/log/faillog\fR\. +File where to keep counts\&. Default is +\FC/var/log/faillog\F[]\&. .RE .PP \fBaudit\fR .RS 4 -Will log the user name into the system log if the user is not found\. +Will log the user name into the system log if the user is not found\&. +.RE +.PP +\fBsilent\fR +.RS 4 +Don\'t print informative messages\&. +.RE +.PP +\fBno_log_info\fR +.RS 4 +Don\'t log informative messages via +\fBsyslog\fR(3)\&. .RE .RE .PP AUTH OPTIONS .RS 4 -Authentication phase first checks if user should be denied access and if not it increments attempted login counter\. Then on call to +Authentication phase first checks if user should be denied access and if not it increments attempted login counter\&. Then on call to \fBpam_setcred\fR(3) -it resets the attempts counter\. +it resets the attempts counter\&. .PP \fBdeny=\fR\fB\fIn\fR\fR .RS 4 Deny access if tally for this user exceeds -\fIn\fR\. +\fIn\fR\&. .RE .PP \fBlock_time=\fR\fB\fIn\fR\fR .RS 4 Always deny for \fIn\fR -seconds after failed attempt\. +seconds after failed attempt\&. .RE .PP \fBunlock_time=\fR\fB\fIn\fR\fR .RS 4 Allow access after \fIn\fR -seconds after failed attempt\. If this option is used the user will be locked out for the specified amount of time after he exceeded his maximum allowed attempts\. Otherwise the account is locked until the lock is removed by a manual intervention of the system administrator\. +seconds after failed attempt\&. If this option is used the user will be locked out for the specified amount of time after he exceeded his maximum allowed attempts\&. Otherwise the account is locked until the lock is removed by a manual intervention of the system administrator\&. .RE .PP \fBmagic_root\fR .RS 4 -If the module is invoked by a user with uid=0 the counter is not incremented\. The sys\-admin should use this for user launched services, like -\fBsu\fR, otherwise this argument should be omitted\. +If the module is invoked by a user with uid=0 the counter is not incremented\&. The sysadmin should use this for user launched services, like +\fBsu\fR, otherwise this argument should be omitted\&. .RE .PP \fBno_lock_time\fR .RS 4 -Do not use the \.fail_locktime field in -\fI/var/log/faillog\fR -for this user\. +Do not use the \&.fail_locktime field in +\FC/var/log/faillog\F[] +for this user\&. .RE .PP \fBno_reset\fR .RS 4 -Don\'t reset count on successful entry, only decrement\. +Don\'t reset count on successful entry, only decrement\&. .RE .PP \fBeven_deny_root_account\fR .RS 4 -Root account can become unavailable\. +Root account can become unavailable\&. .RE .PP \fBper_user\fR .RS 4 If -\fI/var/log/faillog\fR -contains a non\-zero \.fail_max/\.fail_locktime field for this user then use it instead of +\FC/var/log/faillog\F[] +contains a non\-zero \&.fail_max/\&.fail_locktime field for this user then use it instead of \fBdeny=\fR\fB\fIn\fR\fR/ \fBlock_time=\fR\fB\fIn\fR\fR -parameter\. +parameter\&. .RE .PP \fBno_lock_time\fR .RS 4 -Don\'t use \.fail_locktime filed in -\fI/var/log/faillog\fR -for this user\. +Don\'t use \&.fail_locktime filed in +\FC/var/log/faillog\F[] +for this user\&. .RE .RE .PP @@ -139,73 +310,91 @@ ACCOUNT OPTIONS .RS 4 Account phase resets attempts counter if the user is \fBnot\fR -magic root\. This phase can be used optionaly for services which don\'t call +magic root\&. This phase can be used optionally for services which don\'t call \fBpam_setcred\fR(3) -correctly or if the reset should be done regardless of the failure of the account phase of other modules\. +correctly or if the reset should be done regardless of the failure of the account phase of other modules\&. .PP \fBmagic_root\fR .RS 4 -If the module is invoked by a user with uid=0 the counter is not incremented\. The sys\-admin should use this for user launched services, like -\fBsu\fR, otherwise this argument should be omitted\. +If the module is invoked by a user with uid=0 the counter is not incremented\&. The sysadmin should use this for user launched services, like +\fBsu\fR, otherwise this argument should be omitted\&. .RE .PP \fBno_reset\fR .RS 4 -Don\'t reset count on successful entry, only decrement\. +Don\'t reset count on successful entry, only decrement\&. .RE .RE -.SH "MODULE SERVICES PROVIDED" +.SH "MODULE TYPES PROVIDED" .PP The \fBauth\fR and \fBaccount\fR -services are supported\. +module types are provided\&. .SH "RETURN VALUES" .PP PAM_AUTH_ERR .RS 4 -A invalid option was given, the module was not able to retrive the user name, no valid counter file was found, or too many failed logins\. +A invalid option was given, the module was not able to retrieve the user name, no valid counter file was found, or too many failed logins\&. .RE .PP PAM_SUCCESS .RS 4 -Everything was successfull\. +Everything was successful\&. .RE .PP PAM_USER_UNKNOWN .RS 4 -User not known\. +User not known\&. .RE .SH "EXAMPLES" .PP Add the following line to -\fI/etc/pam\.d/login\fR -to lock the account after too many failed logins\. The number of allowed fails is specified by -\fI/var/log/faillog\fR +\FC/etc/pam\&.d/login\F[] +to lock the account after too many failed logins\&. The number of allowed fails is specified by +\FC/var/log/faillog\F[] and needs to be set with pam_tally or \fBfaillog\fR(8) -before\. +before\&. .sp +.if n \{\ .RS 4 +.\} +.fam C +.ps -1 .nf -auth required pam_securetty\.so -auth required pam_tally\.so per_user -auth required pam_env\.so -auth required pam_unix\.so -auth required pam_nologin\.so -account required pam_unix\.so -password required pam_unix\.so -session required pam_limits\.so -session required pam_unix\.so -session required pam_lastlog\.so nowtmp -session optional pam_mail\.so standard +.if t \{\ +.sp -1 +.\} +.BB lightgray adjust-for-leading-newline +.sp -1 + +auth required pam_securetty\&.so +auth required pam_tally\&.so per_user +auth required pam_env\&.so +auth required pam_unix\&.so +auth required pam_nologin\&.so +account required pam_unix\&.so +password required pam_unix\&.so +session required pam_limits\&.so +session required pam_unix\&.so +session required pam_lastlog\&.so nowtmp +session optional pam_mail\&.so standard +.EB lightgray adjust-for-leading-newline +.if t \{\ +.sp 1 +.\} .fi +.fam +.ps +1 +.if n \{\ .RE +.\} .SH "FILES" .PP -\fI/var/log/faillog\fR +\FC/var/log/faillog\F[] .RS 4 failure logging file .RE @@ -214,8 +403,8 @@ failure logging file \fBfaillog\fR(8), \fBpam.conf\fR(5), -\fBpam.d\fR(8), +\fBpam.d\fR(5), \fBpam\fR(8) .SH "AUTHOR" .PP -pam_tally was written by Tim Baverstock and Tomas Mraz\. +pam_tally was written by Tim Baverstock and Tomas Mraz\&. |