1.\" Copyright (c) 1996 David Nugent <davidn@blaze.net.au>
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, is permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice immediately at the beginning of the file, without modification,
9.\" this list of conditions, and the following disclaimer.
10.\" 2. Redistributions in binary form must reproduce the above copyright
11.\" notice, this list of conditions and the following disclaimer in the
12.\" documentation and/or other materials provided with the distribution.
13.\" 3. This work was done expressly for inclusion into FreeBSD. Other use
14.\" is permitted provided this notation is included.
15.\" 4. Absolutely no warranty of function or purpose is made by the author
16.\" David Nugent.
17.\" 5. Modifications may be freely made to this file providing the above
18.\" conditions are met.
19.\"
| 1.\" Copyright (c) 1996 David Nugent <davidn@blaze.net.au>
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, is permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice immediately at the beginning of the file, without modification,
9.\" this list of conditions, and the following disclaimer.
10.\" 2. Redistributions in binary form must reproduce the above copyright
11.\" notice, this list of conditions and the following disclaimer in the
12.\" documentation and/or other materials provided with the distribution.
13.\" 3. This work was done expressly for inclusion into FreeBSD. Other use
14.\" is permitted provided this notation is included.
15.\" 4. Absolutely no warranty of function or purpose is made by the author
16.\" David Nugent.
17.\" 5. Modifications may be freely made to this file providing the above
18.\" conditions are met.
19.\"
|
20.\" $FreeBSD: head/lib/libutil/login.conf.5 57142 2000-02-11 13:55:41Z nik $
| 20.\" $FreeBSD: head/lib/libutil/login.conf.5 57686 2000-03-02 09:14:21Z sheldonh $
|
21.\"
22.Dd November 22, 1996
23.Dt LOGIN.CONF 5
24.Os FreeBSD
25.Sh NAME
26.Nm login.conf
27.Nd login class capability database
28.Sh SYNOPSIS
29.Pa /etc/login.conf ,
30.Pa ~/.login_conf
31.Sh DESCRIPTION
32.Nm login.conf
33contains various attributes and capabilities of login classes.
34A login class (an optional annotation against each record in the user
35account database,
36.Pa /etc/master.passwd )
37determines session accounting, resource limits and user environment settings.
38It is used by various programs in the system to set up a user's login
39environment and to enforce policy, accounting and administrative restrictions.
40It also provides the means by which users are able to be
41authenticated to the system and the types of authentication available.
42.Pp
43A special record "default" in the system user class capability database
44.Pa /etc/login.conf
45is used automatically for any
46non-root user without a valid login class in
47.Pa /etc/master.passwd .
48A user with a uid of 0 without a valid login class will use the record
49"root" if it exists, or "default" if not.
50.Pp
51In FreeBSD, users may individually create a file called
52.Pa .login_conf
53in their home directory using the same format, consisting of a single
54entry with a record id of "me".
55If present, this file is used by
56.Xr login 1
57to set user-defined environment settings which override those specified
58in the system login capabilities database.
59Only a subset of login capabilities may be overridden, typically those
60which do not involve authentication, resource limits and accounting.
61.Pp
62Records in a class capabilities database consist of a number of
63colon-separated fields.
64The first entry for each record gives one or more names that a record is
65to be known by, each separated by a '|' character.
66The first name is the most common abbreviation.
67The last name given should be a long name that is more descriptive
68of the capability entry, and all others are synonyms.
69All names but the last should be in lower case and contain no blanks;
70the last name may contain upper case characters and blanks for
71readability.
72.Pp
73See
74.Xr getcap 3
75for a more in-depth description of the format of a capability database.
76.Sh CAPABILITIES
77Fields within each record in the database follow the
78.Xr getcap 3
79conventions for boolean, type string
80.Ql \&=
81and type numeric
82.Ql \&# ,
83although type numeric is depreciated in favour of the string format and
84either form is accepted for a numeric datum.
85Values fall into the following categories:
86.Bl -tag -width "program"
87.It file
88Path name to a data file
89.It program
90Path name to an executable file
91.It list
92A list of values (or pairs of values) separated by commas or spaces
93.It path
94A space or comma separated list of path names, following the usual csh
95conventions (leading tilde with and without username being expanded to
96home directories etc.)
97.It number
98A numeric value, either decimal (default), hexadecimal (with leading 0x),
99or octal (with a leading 0).
100With a numeric type, only one numeric value is allowed.
101Numeric types may also be specified in string format (ie. the capability
102tag being delimited from the value by '=' instead of '#').
103Whichever method is used, then all records in the database must use the
104same method to allow values to be correctly overridden in interpolated
105records.
106.It size
107A number which expresses a size.
108The default interpretation of a value is the number of bytes, but a
109suffix may specify alternate units:
110.Bl -tag -offset indent -compact -width xxxx
111.It b
112explicitly selects 512-byte blocks
113.It k
114selects kilobytes (1024 bytes)
115.It m
116specifies a multiplier of 1 megabyte (1048576 bytes),
117.It g
118specifies units of gigabytes, and
119.It t
120represents terabytes.
121.El
122A size value is a numeric quantity and case of the suffix is not significant.
123Concatenated values are added together.
124.It time
125A period of time, by default in seconds.
126A prefix may specify a different unit:
127.Bl -tag -offset indent -compact -width xxxx
128.It y
129indicates the number of 365 day years,
130.It w
131indicates the number of weeks,
132.It d
133the number of days,
134.It h
135the number of hours,
136.It m
137the number of minutes, and
138.It s
139the number of seconds.
140.El
141Concatenated values are added together.
142For example, 2 hours and 40 minutes may be written either as
1439600s, 160m or 2h40m.
144.El
145.Pp
146The usual convention to interpolate capability entries using the special
147.Em tc=value
148notation may be used.
149.Pp
150.Sh RESOURCE LIMITS
151.Bl -column coredumpsize indent indent
152.Sy Name Type Notes Description
153.It cputime time CPU usage limit.
154.It filesize size Maximum file size limit.
155.It datasize size Maximum data size limit.
156.It stacksize size Maximum stack size limit.
157.It coredumpsize size Maximum coredump size limit.
158.It memoryuse size Maximum of core memory use size limit.
159.It memorylocked size Maximum locked in core memory size limit.
160.It maxproc number Maximum number of processes.
161.It openfiles number Maximum number of open files per process.
162.El
163.Pp
164These resource limit entries actually specify both the maximum
165and current limits (see
166.Xr getrlimit 2 ).
167The current (soft) limit is the one normally used, although the user is permitted
168to increase the current limit to the maximum (hard) limit.
169The maximum and current limits may be specified individually by appending a
170-max or -cur to the capability name.
171.Pp
172.Sh ENVIRONMENT
173.Bl -column ignorenologin indent xbinxxusrxbin
174.Sy Name Type Notes Description
175.It charset string Set $MM_CHARSET environment variable to the specified
176value.
177.It hushlogin bool false Same as having a ~/.hushlogin file.
178.It ignorenologin bool false Login not prevented by nologin.
179.It lang string Set $LANG environment variable to the specified value.
180.It manpath path Default search path for manpages.
181.It nologin file If the file exists it will be displayed and
182the login session will be terminated.
183.It path path /bin /usr/bin Default search path.
184.It priority number Initial priority (nice) level.
185.It requirehome bool false Require a valid home directory to login.
186.It setenv list A comma-separated list of environment variables and
187values to which they are to be set.
188.It shell prog Session shell to execute rather than the
| 21.\"
22.Dd November 22, 1996
23.Dt LOGIN.CONF 5
24.Os FreeBSD
25.Sh NAME
26.Nm login.conf
27.Nd login class capability database
28.Sh SYNOPSIS
29.Pa /etc/login.conf ,
30.Pa ~/.login_conf
31.Sh DESCRIPTION
32.Nm login.conf
33contains various attributes and capabilities of login classes.
34A login class (an optional annotation against each record in the user
35account database,
36.Pa /etc/master.passwd )
37determines session accounting, resource limits and user environment settings.
38It is used by various programs in the system to set up a user's login
39environment and to enforce policy, accounting and administrative restrictions.
40It also provides the means by which users are able to be
41authenticated to the system and the types of authentication available.
42.Pp
43A special record "default" in the system user class capability database
44.Pa /etc/login.conf
45is used automatically for any
46non-root user without a valid login class in
47.Pa /etc/master.passwd .
48A user with a uid of 0 without a valid login class will use the record
49"root" if it exists, or "default" if not.
50.Pp
51In FreeBSD, users may individually create a file called
52.Pa .login_conf
53in their home directory using the same format, consisting of a single
54entry with a record id of "me".
55If present, this file is used by
56.Xr login 1
57to set user-defined environment settings which override those specified
58in the system login capabilities database.
59Only a subset of login capabilities may be overridden, typically those
60which do not involve authentication, resource limits and accounting.
61.Pp
62Records in a class capabilities database consist of a number of
63colon-separated fields.
64The first entry for each record gives one or more names that a record is
65to be known by, each separated by a '|' character.
66The first name is the most common abbreviation.
67The last name given should be a long name that is more descriptive
68of the capability entry, and all others are synonyms.
69All names but the last should be in lower case and contain no blanks;
70the last name may contain upper case characters and blanks for
71readability.
72.Pp
73See
74.Xr getcap 3
75for a more in-depth description of the format of a capability database.
76.Sh CAPABILITIES
77Fields within each record in the database follow the
78.Xr getcap 3
79conventions for boolean, type string
80.Ql \&=
81and type numeric
82.Ql \&# ,
83although type numeric is depreciated in favour of the string format and
84either form is accepted for a numeric datum.
85Values fall into the following categories:
86.Bl -tag -width "program"
87.It file
88Path name to a data file
89.It program
90Path name to an executable file
91.It list
92A list of values (or pairs of values) separated by commas or spaces
93.It path
94A space or comma separated list of path names, following the usual csh
95conventions (leading tilde with and without username being expanded to
96home directories etc.)
97.It number
98A numeric value, either decimal (default), hexadecimal (with leading 0x),
99or octal (with a leading 0).
100With a numeric type, only one numeric value is allowed.
101Numeric types may also be specified in string format (ie. the capability
102tag being delimited from the value by '=' instead of '#').
103Whichever method is used, then all records in the database must use the
104same method to allow values to be correctly overridden in interpolated
105records.
106.It size
107A number which expresses a size.
108The default interpretation of a value is the number of bytes, but a
109suffix may specify alternate units:
110.Bl -tag -offset indent -compact -width xxxx
111.It b
112explicitly selects 512-byte blocks
113.It k
114selects kilobytes (1024 bytes)
115.It m
116specifies a multiplier of 1 megabyte (1048576 bytes),
117.It g
118specifies units of gigabytes, and
119.It t
120represents terabytes.
121.El
122A size value is a numeric quantity and case of the suffix is not significant.
123Concatenated values are added together.
124.It time
125A period of time, by default in seconds.
126A prefix may specify a different unit:
127.Bl -tag -offset indent -compact -width xxxx
128.It y
129indicates the number of 365 day years,
130.It w
131indicates the number of weeks,
132.It d
133the number of days,
134.It h
135the number of hours,
136.It m
137the number of minutes, and
138.It s
139the number of seconds.
140.El
141Concatenated values are added together.
142For example, 2 hours and 40 minutes may be written either as
1439600s, 160m or 2h40m.
144.El
145.Pp
146The usual convention to interpolate capability entries using the special
147.Em tc=value
148notation may be used.
149.Pp
150.Sh RESOURCE LIMITS
151.Bl -column coredumpsize indent indent
152.Sy Name Type Notes Description
153.It cputime time CPU usage limit.
154.It filesize size Maximum file size limit.
155.It datasize size Maximum data size limit.
156.It stacksize size Maximum stack size limit.
157.It coredumpsize size Maximum coredump size limit.
158.It memoryuse size Maximum of core memory use size limit.
159.It memorylocked size Maximum locked in core memory size limit.
160.It maxproc number Maximum number of processes.
161.It openfiles number Maximum number of open files per process.
162.El
163.Pp
164These resource limit entries actually specify both the maximum
165and current limits (see
166.Xr getrlimit 2 ).
167The current (soft) limit is the one normally used, although the user is permitted
168to increase the current limit to the maximum (hard) limit.
169The maximum and current limits may be specified individually by appending a
170-max or -cur to the capability name.
171.Pp
172.Sh ENVIRONMENT
173.Bl -column ignorenologin indent xbinxxusrxbin
174.Sy Name Type Notes Description
175.It charset string Set $MM_CHARSET environment variable to the specified
176value.
177.It hushlogin bool false Same as having a ~/.hushlogin file.
178.It ignorenologin bool false Login not prevented by nologin.
179.It lang string Set $LANG environment variable to the specified value.
180.It manpath path Default search path for manpages.
181.It nologin file If the file exists it will be displayed and
182the login session will be terminated.
183.It path path /bin /usr/bin Default search path.
184.It priority number Initial priority (nice) level.
185.It requirehome bool false Require a valid home directory to login.
186.It setenv list A comma-separated list of environment variables and
187values to which they are to be set.
188.It shell prog Session shell to execute rather than the
|
189shell specified in the passwd file. The SHELL environment variable will
| 189shell specified in the passwd file.
190The SHELL environment variable will
|
190contain the shell specified in the password file.
191.It term string Default terminal type if not able to determine from
192other means.
193.It timezone string Default value of $TZ environment variable.
194.It umask number 022 Initial umask. Should always have a leading 0 to
195ensure octal interpretation.
196.It welcome file /etc/motd File containing welcome message.
197.El
198.Pp
199.Sh AUTHENTICATION
200.Bl -column minpasswordlen indent indent
201.Sy Name Type Notes Description
202.It minpasswordlen number 6 The minimum length a local password may be.
203.\" .It approve program Program to approve login.
204.It mixpasswordcase bool true Whether
205.Xr passwd 1
206will warn the user if an all lower case password is entered.
207.It copyright file File containing additional copyright information
208.\".It widepasswords bool false Use the wide password format. The wide password
209.\" format allows up to 128 significant characters in the password.
210.It host.allow list List of remote host wildcards from which users in
211the class may access.
212.It host.deny list List of remote host wildcards from which users in
213the class may not access.
214.It times.allow list List of time periods during which
215logins are allowed.
216.It times.deny list List of time periods during which logins are
217disallowed.
218.It ttys.allow list List of ttys and ttygroups which users
219in the class may use for access.
220.It ttys.deny list List of ttys and ttygroups which users
221in the class may not use for access.
222.El
223.Pp
224These fields are intended to be used by
225.Xr passwd 1
226and other programs in the login authentication system.
227.Pp
228Capabilities that set environment variables are scanned for both
229.Ql \&~
230and
231.Ql \&$
232characters, which are substituted for a user's home directory and name
233respectively.
234To pass these characters literally into the environment variable, escape
235the character by preceding it with a backslash '\\'.
236.Pp
237The
238.Em host.allow
239and
240.Em host.deny
241entries are comma separated lists used for checking remote access to the system,
242and consist of a list of hostnames and/or IP addresses against which remote
243network logins are checked.
244Items in these lists may contain wildcards in the form used by shell programs
245for wildcard matching (See
246.Xr fnmatch 3
247for details on the implementation).
248The check on hosts is made against both the remote system's Internet address
249and hostname (if available).
250If both lists are empty or not specified, then logins from any remote host
251are allowed.
252If host.allow contains one or more hosts, then only remote systems matching
253any of the items in that list are allowed to log in.
254If host.deny contains one or more hosts, then a login from any matching hosts
255will be disallowed.
256.Pp
257The
258.Em times.allow
259and
260.Em times.deny
261entries consist of a comma-separated list of time periods during which the users
262in a class are allowed to be logged in.
263These are expressed as one or more day codes followed by a start and end times
264expressed in 24 hour format, separated by a hyphen or dash.
265For example, MoThSa0200-1300 translates to Monday, Thursday and Saturday between
266the hours of 2 am and 1 p.m..
267If both of these time lists are empty, users in the class are allowed access at
268any time.
269If
270.Em times.allow
271is specified, then logins are only allowed during the periods given.
272If
273.Em times.deny
274is specified, then logins are denied during the periods given, regardless of whether
275one of the periods specified in
276.Em times.allow
277applies.
278.Pp
279Note that
280.Xr login 1
281enforces only that the actual login falls within periods allowed by these entries.
282Further enforcement over the life of a session requires a separate daemon to
283monitor transitions from an allowed period to a non-allowed one.
284.Pp
285The
286.Em ttys.allow
287and
288.Em ttys.deny
289entries contain a comma-separated list of tty devices (without the /dev/ prefix)
290that a user in a class may use to access the system, and/or a list of ttygroups
291(See
292.Xr getttyent 3
293and
294.Xr ttys 5
295for information on ttygroups).
296If neither entry exists, then the choice of login device used by the user is
297unrestricted.
298If only
299.Em ttys.allow
300is specified, then the user is restricted only to ttys in the given
301group or device list.
302If only
303.Em ttys.deny
304is specified, then the user is prevented from using the specified devices or
305devices in the group.
306If both lists are given and are non-empty, the user is restricted to those
307devices allowed by ttys.allow that are not available by ttys.deny.
308.Sh ACCOUNTING LIMITS
309.Bl -column host.accounted indent indent
310.Sy Name Type Notes Description
311.It accounted bool false Enable session time accounting for all users
312in this class.
313.It autodelete time Time after expiry when account is auto-deleted.
314.It bootfull bool false Enable 'boot only if ttygroup is full' strategy
315when terminating sessions.
316.It daytime time Maximum login time per day.
317.It expireperiod time Time for expiry allocation.
318.It graceexpire time Grace days for expired account.
319.It gracetime time Additional grace login time allowed.
320.It host.accounted list List of remote host wildcards from which
321login sessions will be accounted.
322.It host.exempt list List of remote host wildcards from which
323login session accounting is exempted.
324.It idletime time Maximum idle time before logout.
325.It monthtime time Maximum login time per month.
326.It passwordtime time Used by
327.Xr passwd 1
328to set next password expiry date.
329.It refreshtime time New time allowed on account refresh.
330.It refreshperiod str How often account time is refreshed.
331.It sessiontime time Maximum login time per session.
332.It sessionlimit number Maximum number of concurrent
333login sessions on ttys in any group.
334.It ttys.accounted list List of ttys and ttygroups for which
335login accounting is active.
336.It ttys.exempt list List of ttys and ttygroups for which login accounting
337is exempt.
338.It warnexpire time Advance notice for pending account expiry.
339.It warnpassword time Advance notice for pending password expiry.
340.It warntime time Advance notice for pending out-of-time.
341.It weektime time Maximum login time per week.
342.El
343.Pp
344These fields are used by the time accounting system, which regulates,
345controls and records user login access.
346.Pp
347The
348.Em ttys.accounted
349and
350.Em ttys.exempt
351fields operate in a similar manner to
352.Em ttys.allow
353and
354.Em ttys.deny
355as explained
356above.
357Similarly with the
358.Em host.accounted
359and
360.Em host.exempt
361lists.
362.Sh SEE ALSO
363.Xr login 1 ,
364.Xr getcap 3 ,
365.Xr getttyent 3 ,
366.Xr login_cap 3 ,
367.Xr login_class 3 ,
368.Xr passwd 5 ,
369.Xr ttys 5
| 191contain the shell specified in the password file.
192.It term string Default terminal type if not able to determine from
193other means.
194.It timezone string Default value of $TZ environment variable.
195.It umask number 022 Initial umask. Should always have a leading 0 to
196ensure octal interpretation.
197.It welcome file /etc/motd File containing welcome message.
198.El
199.Pp
200.Sh AUTHENTICATION
201.Bl -column minpasswordlen indent indent
202.Sy Name Type Notes Description
203.It minpasswordlen number 6 The minimum length a local password may be.
204.\" .It approve program Program to approve login.
205.It mixpasswordcase bool true Whether
206.Xr passwd 1
207will warn the user if an all lower case password is entered.
208.It copyright file File containing additional copyright information
209.\".It widepasswords bool false Use the wide password format. The wide password
210.\" format allows up to 128 significant characters in the password.
211.It host.allow list List of remote host wildcards from which users in
212the class may access.
213.It host.deny list List of remote host wildcards from which users in
214the class may not access.
215.It times.allow list List of time periods during which
216logins are allowed.
217.It times.deny list List of time periods during which logins are
218disallowed.
219.It ttys.allow list List of ttys and ttygroups which users
220in the class may use for access.
221.It ttys.deny list List of ttys and ttygroups which users
222in the class may not use for access.
223.El
224.Pp
225These fields are intended to be used by
226.Xr passwd 1
227and other programs in the login authentication system.
228.Pp
229Capabilities that set environment variables are scanned for both
230.Ql \&~
231and
232.Ql \&$
233characters, which are substituted for a user's home directory and name
234respectively.
235To pass these characters literally into the environment variable, escape
236the character by preceding it with a backslash '\\'.
237.Pp
238The
239.Em host.allow
240and
241.Em host.deny
242entries are comma separated lists used for checking remote access to the system,
243and consist of a list of hostnames and/or IP addresses against which remote
244network logins are checked.
245Items in these lists may contain wildcards in the form used by shell programs
246for wildcard matching (See
247.Xr fnmatch 3
248for details on the implementation).
249The check on hosts is made against both the remote system's Internet address
250and hostname (if available).
251If both lists are empty or not specified, then logins from any remote host
252are allowed.
253If host.allow contains one or more hosts, then only remote systems matching
254any of the items in that list are allowed to log in.
255If host.deny contains one or more hosts, then a login from any matching hosts
256will be disallowed.
257.Pp
258The
259.Em times.allow
260and
261.Em times.deny
262entries consist of a comma-separated list of time periods during which the users
263in a class are allowed to be logged in.
264These are expressed as one or more day codes followed by a start and end times
265expressed in 24 hour format, separated by a hyphen or dash.
266For example, MoThSa0200-1300 translates to Monday, Thursday and Saturday between
267the hours of 2 am and 1 p.m..
268If both of these time lists are empty, users in the class are allowed access at
269any time.
270If
271.Em times.allow
272is specified, then logins are only allowed during the periods given.
273If
274.Em times.deny
275is specified, then logins are denied during the periods given, regardless of whether
276one of the periods specified in
277.Em times.allow
278applies.
279.Pp
280Note that
281.Xr login 1
282enforces only that the actual login falls within periods allowed by these entries.
283Further enforcement over the life of a session requires a separate daemon to
284monitor transitions from an allowed period to a non-allowed one.
285.Pp
286The
287.Em ttys.allow
288and
289.Em ttys.deny
290entries contain a comma-separated list of tty devices (without the /dev/ prefix)
291that a user in a class may use to access the system, and/or a list of ttygroups
292(See
293.Xr getttyent 3
294and
295.Xr ttys 5
296for information on ttygroups).
297If neither entry exists, then the choice of login device used by the user is
298unrestricted.
299If only
300.Em ttys.allow
301is specified, then the user is restricted only to ttys in the given
302group or device list.
303If only
304.Em ttys.deny
305is specified, then the user is prevented from using the specified devices or
306devices in the group.
307If both lists are given and are non-empty, the user is restricted to those
308devices allowed by ttys.allow that are not available by ttys.deny.
309.Sh ACCOUNTING LIMITS
310.Bl -column host.accounted indent indent
311.Sy Name Type Notes Description
312.It accounted bool false Enable session time accounting for all users
313in this class.
314.It autodelete time Time after expiry when account is auto-deleted.
315.It bootfull bool false Enable 'boot only if ttygroup is full' strategy
316when terminating sessions.
317.It daytime time Maximum login time per day.
318.It expireperiod time Time for expiry allocation.
319.It graceexpire time Grace days for expired account.
320.It gracetime time Additional grace login time allowed.
321.It host.accounted list List of remote host wildcards from which
322login sessions will be accounted.
323.It host.exempt list List of remote host wildcards from which
324login session accounting is exempted.
325.It idletime time Maximum idle time before logout.
326.It monthtime time Maximum login time per month.
327.It passwordtime time Used by
328.Xr passwd 1
329to set next password expiry date.
330.It refreshtime time New time allowed on account refresh.
331.It refreshperiod str How often account time is refreshed.
332.It sessiontime time Maximum login time per session.
333.It sessionlimit number Maximum number of concurrent
334login sessions on ttys in any group.
335.It ttys.accounted list List of ttys and ttygroups for which
336login accounting is active.
337.It ttys.exempt list List of ttys and ttygroups for which login accounting
338is exempt.
339.It warnexpire time Advance notice for pending account expiry.
340.It warnpassword time Advance notice for pending password expiry.
341.It warntime time Advance notice for pending out-of-time.
342.It weektime time Maximum login time per week.
343.El
344.Pp
345These fields are used by the time accounting system, which regulates,
346controls and records user login access.
347.Pp
348The
349.Em ttys.accounted
350and
351.Em ttys.exempt
352fields operate in a similar manner to
353.Em ttys.allow
354and
355.Em ttys.deny
356as explained
357above.
358Similarly with the
359.Em host.accounted
360and
361.Em host.exempt
362lists.
363.Sh SEE ALSO
364.Xr login 1 ,
365.Xr getcap 3 ,
366.Xr getttyent 3 ,
367.Xr login_cap 3 ,
368.Xr login_class 3 ,
369.Xr passwd 5 ,
370.Xr ttys 5
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