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(-)sshd_config.5 (-3 / +12 lines)
Lines 1494-1504 For more details on certificates, see th Link Here
1494 
.It Cm UseDNS
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.It Cm UseDNS
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Specifies whether
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Specifies whether
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.Xr sshd 8
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.Xr sshd 8
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should look up the remote host name and check that
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should look up the remote host name, and to check that
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the resolved host name for the remote IP address maps back to the
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the resolved host name for the remote IP address maps back to the
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very same IP address.
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very same IP address.
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The default is
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.Pp
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.Dq no .
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If this option is set to
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.Dq no
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(the default) then only addresses and not host names may be used in
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.Pa ~/.ssh/known_hosts
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.Cm from
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and
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.Xr sshd_config 5
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.Cm Match
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.Cm Host
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directives.
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.It Cm UseLogin
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.It Cm UseLogin
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Specifies whether
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Specifies whether
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.Xr login 1
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.Xr login 1

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