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head/crypto/openssh/sshd_config.5
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| .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | .\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||||
| .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||||
| .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | .\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||||
| .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||||
| .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||||
| .\" | .\" | ||||
| .\" $OpenBSD: sshd_config.5,v 1.282 2018/09/20 03:28:06 djm Exp $ | .\" $OpenBSD: sshd_config.5,v 1.282 2018/09/20 03:28:06 djm Exp $ | ||||
| .\" $FreeBSD$ | .\" $FreeBSD$ | ||||
| .Dd $Mdocdate: September 20 2018 $ | .Dd $Mdocdate: July 28 2020 $ | ||||
| .Dt SSHD_CONFIG 5 | .Dt SSHD_CONFIG 5 | ||||
| .Os | .Os | ||||
| .Sh NAME | .Sh NAME | ||||
| .Nm sshd_config | .Nm sshd_config | ||||
| .Nd OpenSSH SSH daemon configuration file | .Nd OpenSSH SSH daemon configuration file | ||||
| .Sh DESCRIPTION | .Sh DESCRIPTION | ||||
| .Xr sshd 8 | .Xr sshd 8 | ||||
| reads configuration data from | reads configuration data from | ||||
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| Specifies whether | Specifies whether | ||||
| .Xr sshd 8 | .Xr sshd 8 | ||||
| attempts to send authentication success and failure messages | attempts to send authentication success and failure messages | ||||
| to the | to the | ||||
| .Xr blacklistd 8 | .Xr blacklistd 8 | ||||
| daemon. | daemon. | ||||
| The default is | The default is | ||||
| .Cm no . | .Cm no . | ||||
| For forward compatibility with an upcoming | |||||
| .Xr blacklistd | |||||
| rename, the | |||||
| .Cm UseBlocklist | |||||
| alias can be used instead. | |||||
| .It Cm UseDNS | .It Cm UseDNS | ||||
| Specifies whether | Specifies whether | ||||
| .Xr sshd 8 | .Xr sshd 8 | ||||
| should look up the remote host name, and to check that | should look up the remote host name, and to check that | ||||
| the resolved host name for the remote IP address maps back to the | the resolved host name for the remote IP address maps back to the | ||||
| very same IP address. | very same IP address. | ||||
| .Pp | .Pp | ||||
| If this option is set to | If this option is set to | ||||
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