NAME

login.conf — login class capability database

DESCRIPTION

The file /etc/login.conf describes login classes: the resource limits, environment and other settings a session starts with. An account's class is the fifth field of /etc/master.passwd; see passwd(5). An empty class means “default”, except that the superuser's means “root”. A class with no record uses “default”.

Like gettytab(5), it is a getcap(3) database, and tc=class continues a record with another class. Sizes take the suffixes b, k, m, g and t; times take s, m, h, d and w, and may be combined, as in ‘1h30m’. Either may be ‘unlimited’.

Resource limits

Each limit sets both the soft and hard limit; name-cur and name-max set one of them.

Name	Type	Limit
coredumpsize	size	`RLIMIT_CORE`
cputime	time	`RLIMIT_CPU`
datasize	size	`RLIMIT_DATA`
filesize	size	`RLIMIT_FSIZE`
maxproc	number	`RLIMIT_NPROC`
memorylocked	size	`RLIMIT_MEMLOCK`
memoryuse	size	`RLIMIT_RSS`
openfiles	number	`RLIMIT_NOFILE`
stacksize	size	`RLIMIT_STACK`

Environment and session

charset=name: MM_CHARSET.
hushlogin: Do not print the message of the day.
lang=locale: LANG.
nologin=file: Refuse logins other than the superuser's while file exists, showing its contents.
path=directories: PATH, as a space-separated list.
priority=number: The scheduling priority, as for nice(1).
requirehome: Refuse the login if the home directory is missing.
setenv=list: Further variables, as name=value pairs separated by commas; ‘\,’ is a literal comma. In each value, ‘~’ stands for the home directory and ‘$’ for the user name.
shell=program: Run program instead of the account's shell.
timezone=zone: TZ.
umask=mask: The file creation mask, in octal.
welcome=file: The message of the day; default /etc/motd.

Authentication

These are read from the “default” class only.

login-backoff=number: Failed attempts after which login(1) starts delaying; default 3.
login-retries=number: Failed attempts after which it gives up; default 10.
login-timeout=seconds: How long a login may take; default 300.

FILES

/etc/login.conf

HISTORY

The login.conf file appeared in BSD/OS 2.1. login-timeout is OxideBSD's.