gnu/81689: Unable to connect via SSH using protocol v2

Xin LI delphij at
Mon May 30 23:00:17 PDT 2005

The following reply was made to PR gnu/81689; it has been noted by GNATS.

From: Xin LI <delphij at>
To: eric at
Cc: bug-followup at, Maxim Konovalov <maxim at>
Subject: Re: gnu/81689: Unable to connect via SSH using protocol v2
Date: Tue, 31 May 2005 13:50:07 +0800

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 Hi, Eric,
 =E5=9C=A8 2005-05-30=E4=B8=80=E7=9A=84 22:36 -0700=EF=BC=8CEric Pretorious=
 > On Monday 30 May 2005 10:30 pm, Eric Pretorious wrote:
 > >One thought, though: This problem didn't seem to exist with RELENG_4_10_=
 RELEASE. Has there been a change in /etc/ssh/sshd_config?
 > Maxim, Xin:
 > There does NOT appear to be a 'UseDNS' directive in either the stock sshd=
 _config file *or* in the sshd_config man page (5).
 It appears in my sshd_config(5):
 %%% %%%
      UseDNS  Specifies whether sshd should lookup the remote host name=20
              and check that the resolved host name for the remote IP=20
              address maps back to the very same IP address.  The default
              is ``yes''.
 %%% %%%
 And also the source code of sshd(8):
 %%% %%%
 [delphij at spirit] /usr/src/crypto/openssh# grep UseDNS sshd_config
 #UseDNS yes
 %%% %%%
 So let's give the option a try :-)  In addition, what OpenSSH version
 are you running?  (try "telnet localhost 22")
 Xin LI <delphij delphij net>
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