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 <CAGdK=2UO8=3Dr143HJBKDCwxNiCBsHYCLqB7RV45K0mjSJ1tLA@mail.gmail.com>
Subject: passphraseless ssh
From: Riccardo Freschi <riccardo.freschi.it@gmail.com>
To: user@hadoop.apache.org
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--047d7bdc067a55f42c04d06a9eb8
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I tried the following:
*
hadoop-1.1.1/docs/single_node_setup.html
in order for passphraseless ssh to work, the below is not sufficient:
Setup passphraseless ssh

Now check that you can ssh to the localhost without a passphrase:
$ ssh localhost

If you cannot ssh to localhost without a passphrase, execute the following
commands:
$ ssh-keygen -t dsa -P '' -f ~/.ssh/id_dsa
$ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys

I recommend you add the following sentence:
remove write permissions from group and other to your home directory and
.ssh directory.*

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<div style=3D"text-align:left">I tried the following:</div><strong style=3D=
"margin:0px;padding:0px;border:0px;font-size:14px;vertical-align:baseline;b=
ackground-color:rgb(247,247,247);color:rgb(51,51,51);font-family:&#39;Ubunt=
u Beta&#39;,UbuntuBeta,Ubuntu,&#39;Bitstream Vera Sans&#39;,&#39;DejaVu San=
s&#39;,Tahoma,sans-serif;line-height:17px;text-align:left"><div>
<strong style=3D"margin:0px;padding:0px;border:0px;font-size:14px;vertical-=
align:baseline;background-color:rgb(247,247,247);color:rgb(51,51,51);font-f=
amily:&#39;Ubuntu Beta&#39;,UbuntuBeta,Ubuntu,&#39;Bitstream Vera Sans&#39;=
,&#39;DejaVu Sans&#39;,Tahoma,sans-serif;line-height:17px;text-align:left">=
hadoop-1.1.1/docs/single_node_setup.html<br>
</strong></div><div><strong style=3D"margin:0px;padding:0px;border:0px;font=
-size:14px;vertical-align:baseline;background-color:rgb(247,247,247);color:=
rgb(51,51,51);font-family:&#39;Ubuntu Beta&#39;,UbuntuBeta,Ubuntu,&#39;Bits=
tream Vera Sans&#39;,&#39;DejaVu Sans&#39;,Tahoma,sans-serif;line-height:17=
px;text-align:left"><font color=3D"#333333" face=3D"Ubuntu Beta, UbuntuBeta=
, Ubuntu, Bitstream Vera Sans, DejaVu Sans, Tahoma, sans-serif" style=3D"fo=
nt-size:small;font-weight:normal;line-height:normal;background-color:rgb(25=
5,255,255)"><span style=3D"font-size:14px;line-height:17px"><b>in order for=
=A0</b></span></font><span style=3D"color:rgb(34,34,34);font-family:arial;f=
ont-size:small;font-weight:normal;line-height:normal;background-color:rgb(2=
55,255,255)">passphraseless ssh to work, the below is not sufficient:</span=
></strong></div>
<div><strong style=3D"margin:0px;padding:0px;border:0px;font-size:14px;vert=
ical-align:baseline;background-color:rgb(247,247,247);color:rgb(51,51,51);f=
ont-family:&#39;Ubuntu Beta&#39;,UbuntuBeta,Ubuntu,&#39;Bitstream Vera Sans=
&#39;,&#39;DejaVu Sans&#39;,Tahoma,sans-serif;line-height:17px;text-align:l=
eft"><i><h3 class=3D"h4" style=3D"font-family:arial;margin:18px 0px 0.5em;f=
ont-size:18px;padding:0px;color:rgb(0,0,0);line-height:normal;text-align:-w=
ebkit-auto;background-color:rgb(255,255,255)">
Setup passphraseless ssh</h3><p style=3D"line-height:15px;margin-top:0.5em;=
margin-bottom:1em;color:rgb(0,0,0);font-family:Verdana,Helvetica,sans-serif=
;font-size:13px;font-weight:normal;background-color:rgb(255,255,255)">Now c=
heck that you can ssh to the localhost without a passphrase:<br>
<span class=3D"" style=3D"font-family:&#39;Courier New&#39;,Courier,monospa=
ce;font-size:14px">$ ssh localhost</span></p><p style=3D"line-height:15px;m=
argin-top:0.5em;margin-bottom:1em;color:rgb(0,0,0);font-family:Verdana,Helv=
etica,sans-serif;font-size:13px;font-weight:normal;background-color:rgb(255=
,255,255)">
If you cannot ssh to localhost without a passphrase, execute the following =
commands:<br><span class=3D"" style=3D"font-family:&#39;Courier New&#39;,Co=
urier,monospace;font-size:14px">$ ssh-keygen -t dsa -P &#39;&#39; -f ~/.ssh=
/id_dsa</span>=A0<br>
<span class=3D"" style=3D"font-family:&#39;Courier New&#39;,Courier,monospa=
ce;font-size:14px">$ cat ~/.ssh/id_dsa.pub &gt;&gt; ~/.ssh/authorized_keys<=
/span></p></i></strong></div><div><strong style=3D"margin:0px;padding:0px;b=
order:0px;font-size:14px;vertical-align:baseline;background-color:rgb(247,2=
47,247);color:rgb(51,51,51);font-family:&#39;Ubuntu Beta&#39;,UbuntuBeta,Ub=
untu,&#39;Bitstream Vera Sans&#39;,&#39;DejaVu Sans&#39;,Tahoma,sans-serif;=
line-height:17px;text-align:left"><br>
</strong></div><div><strong style=3D"margin:0px;padding:0px;border:0px;font=
-size:14px;vertical-align:baseline;background-color:rgb(247,247,247);color:=
rgb(51,51,51);font-family:&#39;Ubuntu Beta&#39;,UbuntuBeta,Ubuntu,&#39;Bits=
tream Vera Sans&#39;,&#39;DejaVu Sans&#39;,Tahoma,sans-serif;line-height:17=
px;text-align:left">I recommend you add the following sentence:</strong></d=
iv>
remove write permissions from group and other to your home directory and .s=
sh directory.</strong><br>

--047d7bdc067a55f42c04d06a9eb8--