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usr.sbin/nologin/nologin.8
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| .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||||
| .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||||
| .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||||
| .\" SUCH DAMAGE. | .\" SUCH DAMAGE. | ||||
| .\" | .\" | ||||
| .\" @(#)nologin.8 8.1 (Berkeley) 6/19/93 | .\" @(#)nologin.8 8.1 (Berkeley) 6/19/93 | ||||
| .\" $FreeBSD$ | .\" $FreeBSD$ | ||||
| .\" | .\" | ||||
| .Dd June 19, 1993 | .Dd March 30, 2020 | ||||
| .Dt NOLOGIN 8 | .Dt NOLOGIN 8 | ||||
| .Os | .Os | ||||
| .Sh NAME | .Sh NAME | ||||
| .Nm nologin | .Nm nologin | ||||
| .Nd politely refuse a login | .Nd politely refuse a login | ||||
| .Sh SYNOPSIS | .Sh SYNOPSIS | ||||
| .Nm | .Nm | ||||
| .Sh DESCRIPTION | .Sh DESCRIPTION | ||||
| The | The | ||||
| .Nm | .Nm | ||||
| utility displays a message that an account is not available and | is intended as a replacement shell field for accounts that | ||||
| exits non-zero. | |||||
| It is intended as a replacement shell field for accounts that | |||||
| have been disabled. | have been disabled. | ||||
| .Pp | .Pp | ||||
| When executed, | |||||
| .Nm | |||||
| first writes about the login attempt to | |||||
| .Xr syslog 3 | |||||
| and then a displays a message that an account is not available. | |||||
| .Pp | |||||
| To disable all logins, | To disable all logins, | ||||
| investigate | investigate | ||||
| .Xr nologin 5 . | .Xr nologin 5 . | ||||
| .Sh EXIT STATUS | |||||
| The | |||||
| .Nm | |||||
| utility always exits non-zero. | |||||
| .Sh EXAMPLES | |||||
| Here is a demonstration of executing | |||||
| .Nm : | |||||
| .Bd -literal -offset 4n | |||||
| $ nologin | |||||
| This account is currently not available. | |||||
| $ tail -n 1 /var/log/messages | |||||
| Mar 30 21:53:07 example.org nologin[65992]: Attempted login by beastie on /dev/pts/18 | |||||
| .Ed | |||||
| .Sh SEE ALSO | .Sh SEE ALSO | ||||
| .Xr login 1 , | .Xr login 1 , | ||||
| .Xr nologin 5 | .Xr nologin 5 | ||||
| .Sh HISTORY | .Sh HISTORY | ||||
| The | The | ||||
| .Nm | .Nm | ||||
| utility appeared in | utility appeared in | ||||
| .Bx 4.4 . | .Bx 4.4 . | ||||