'\" t .\" Title: pwck .\" Author: Julianne Frances Haugh .\" Generator: DocBook XSL Stylesheets v1.78.1 .\" Date: 17-05-2017 .\" Manual: Systemhanteringskommandon .\" Source: shadow-utils 4.2 .\" Language: Swedish .\" .TH "PWCK" "8" "17-05-2017" "shadow\-utils 4\&.2" "Systemhanteringskommandon" .\" ----------------------------------------------------------------- .\" * 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 "NAMN" pwck \- validera integriteten f\(:or l\(:osenordsfiler .SH "SYNOPSIS" .HP \w'\fBpwck\fR\ 'u \fBpwck\fR [flaggor] [\fIpasswd\fR\ [\ \fIshadow\fR\ ]] .SH "BESKRIVNING" .PP The \fBpwck\fR command verifies the integrity of the users and authentication information\&. It checks that all entries in /etc/passwd and /etc/shadow have the proper format and contain valid data\&. The user is prompted to delete entries that are improperly formatted or which have other uncorrectable errors\&. .PP Kontroller g\(:ors f\(:or att validera att varje post har: .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} korrekt antal f\(:alt .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} a unique and valid user name .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} en giltig identifierare f\(:or anv\(:andare och grupp .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} en giltig prim\(:ar grupp .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} en giltig hemkatalog .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} ett giltigt inloggningsskal .RE .PP shadow checks are enabled when a second file parameter is specified or when /etc/shadow exists on the system\&. .PP These checks are the following: .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} every passwd entry has a matching shadow entry, and every shadow entry has a matching passwd entry .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} passwords are specified in the shadowed file .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} shadow entries have the correct number of fields .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} shadow entries are unique in shadow .RE .sp .RS 4 .ie n \{\ \h'-04'\(bu\h'+03'\c .\} .el \{\ .sp -1 .IP \(bu 2.3 .\} the last password changes are not in the future .RE .PP The checks for correct number of fields and unique user name are fatal\&. If the entry has the wrong number of fields, the user will be prompted to delete the entire line\&. If the user does not answer affirmatively, all further checks are bypassed\&. An entry with a duplicated user name is prompted for deletion, but the remaining checks will still be made\&. All other errors are warning and the user is encouraged to run the \fBusermod\fR command to correct the error\&. .PP The commands which operate on the /etc/passwd file are not able to alter corrupted or duplicated entries\&. \fBpwck\fR should be used in those circumstances to remove the offending entry\&. .SH "FLAGGOR" .PP The \fB\-r\fR and \fB\-s\fR options cannot be combined\&. .PP Flaggorna som g\(:aller f\(:or kommandot \fBpwck\fR \(:ar: .PP \fB\-h\fR, \fB\-\-help\fR .RS 4 Visa hj\(:alpmeddelande och avsluta\&. .RE .PP \fB\-q\fR, \fB\-\-quiet\fR .RS 4 Report errors only\&. The warnings which do not require any action from the user won\*(Aqt be displayed\&. .RE .PP \fB\-r\fR, \fB\-\-read\-only\fR .RS 4 Starta kommandot \fBpwck\fR i skrivskyddat l\(:age\&. .RE .PP \fB\-R\fR, \fB\-\-root\fR\ \&\fICHROOT_DIR\fR .RS 4 Apply changes in the \fICHROOT_DIR\fR directory and use the configuration files from the \fICHROOT_DIR\fR directory\&. .RE .PP \fB\-s\fR, \fB\-\-sort\fR .RS 4 Sorterar poster i /etc/passwd och /etc/shadow efter UID\&. .RE .PP By default, \fBpwck\fR operates on the files /etc/passwd and /etc/shadow\&. The user may select alternate files with the \fIpasswd\fR and \fIshadow\fR parameters\&. .SH "CONFIGURATION" .PP The following configuration variables in /etc/login\&.defs change the behavior of this tool: .PP \fBPASS_MAX_DAYS\fR (number) .RS 4 The maximum number of days a password may be used\&. If the password is older than this, a password change will be forced\&. If not specified, \-1 will be assumed (which disables the restriction)\&. .RE .PP \fBPASS_MIN_DAYS\fR (number) .RS 4 The minimum number of days allowed between password changes\&. Any password changes attempted sooner than this will be rejected\&. If not specified, \-1 will be assumed (which disables the restriction)\&. .RE .PP \fBPASS_WARN_AGE\fR (number) .RS 4 The number of days warning given before a password expires\&. A zero means warning is given only upon the day of expiration, a negative value means no warning is given\&. If not specified, no warning will be provided\&. .RE .SH "FILER" .PP /etc/group .RS 4 Gruppkontoinformation\&. .RE .PP /etc/passwd .RS 4 Anv\(:andarkontoinformation\&. .RE .PP /etc/shadow .RS 4 S\(:aker anv\(:andarkontoinformation\&. .RE .SH "AVSLUTNINGSV\(:ARDEN" .PP Kommandot \fBpwck\fR avslutas med f\(:oljande v\(:arden: .PP \fI0\fR .RS 4 lyckad .RE .PP \fI1\fR .RS 4 ogiltig kommandosyntax .RE .PP \fI2\fR .RS 4 en eller flera felaktiga l\(:osenordsposter .RE .PP \fI3\fR .RS 4 kan inte \(:oppna l\(:osenordsfiler .RE .PP \fI4\fR .RS 4 kan inte l\(oasa l\(:osenordsfiler .RE .PP \fI5\fR .RS 4 kan inte uppdatera l\(:osenordsfiler .RE .PP \fI6\fR .RS 4 can\*(Aqt sort password files .RE .SH "SE OCKS\(oA" .PP \fBgroup\fR(5), \fBgrpck\fR(8), \fBpasswd\fR(5), \fBshadow\fR(5), \fBusermod\fR(8)\&.