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mention that the default of UseDNS=no implies that
 hostnames cannot be used for host matching in sshd_config and
 authorized_keys; bz#2045, ok dtucker@

Upstream-ID: 0812705d5f2dfa59aab01f2764ee800b1741c4e1
This commit is contained in:
djm@openbsd.org 2015-07-20 00:30:01 +00:00 committed by Damien Miller
parent 63ebcd0005
commit c63c9a691d
1 changed files with 14 additions and 5 deletions
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19
sshd_config.5
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@ -33,8 +33,8 @@
.\" (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 1.206 2015/07/10 06:21:53 markus Exp $ .\" $OpenBSD: sshd_config.5,v 1.207 2015/07/20 00:30:01 djm Exp $
.Dd $Mdocdate: July 10 2015 $ .Dd $Mdocdate: July 20 2015 $
.Dt SSHD_CONFIG 5 .Dt SSHD_CONFIG 5
.Os .Os
.Sh NAME .Sh NAME
@ -1493,11 +1493,20 @@ For more details on certificates, see the CERTIFICATES section in
.It Cm UseDNS .It Cm UseDNS
Specifies whether Specifies whether
.Xr sshd 8 .Xr sshd 8
should look up the remote host name and 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.
The default is .Pp
.Dq no . If this option is set to
.Dq no
(the default) then only addresses and not host names may be used in
.Pa ~/.ssh/known_hosts
.Cm from
and
.Xr sshd_config 5
.Cm Match
.Cm Host
directives.
.It Cm UseLogin .It Cm UseLogin
Specifies whether Specifies whether
.Xr login 1 .Xr login 1