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From Andy Isaacson <...@cloudera.com>
Subject Re: ERROR: ssh-copy-id: command not found IN HADOOP DISTRIBUTED MODE
Date Thu, 25 Oct 2012 20:38:25 GMT
On Thu, Oct 25, 2012 at 7:01 AM,  <yogesh.kumar13@wipro.com> wrote:
> Hi Brahma,
>
> I am on Mac OS X it dosent have  copy cmd i.e
>
> sh-copy-id -i
>
> I copyed it as
>
> mediaadmin$ cat ~/.ssh/id_rsa.pub | ssh pluto@10.203.33.80 'cat >> ~/.ssh/authorized_keys'
> Password:
>
> and did
> ssh 10.203.33.80 and it asked for password.

The most common cause of this (once the .pub is properly copied to
authorized_keys) is permissions problems. Make sure your .ssh/
directory is mode 700 (rwx------) and your .ssh/authorized_keys file
is mode 600 (rw-------) and your home directory is not group-writable.

chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_keys
chmod go-w ~

If the remote machine is running RHEL or CentOS, you might also have a
SELinux labelling problem.
https://bugzilla.redhat.com/show_bug.cgi?id=499343 and
http://bugs.centos.org/view.php?id=4959

The workaround is to use the restorecon command, but it is easy to
misuse and I am not an expert so I am uncomfortable providing explicit
instructions. Check your /var/log/auth.log or similar on the remote
host to see if it has messages explaining why pubkey authentication
was not allowed.

-andy

>
> Master:~ mediaadmin$ ssh 10.203.33.80
> Password:
> Last login: Thu Oct 25 19:04:31 2012 from master
>
>
> Please suggest
>
> Thanks & regards
> Yogesh Kumar
>
> ________________________________________
> From: Brahma Reddy Battula [brahmareddy.battula@huawei.com]
> Sent: Thursday, October 25, 2012 6:38 PM
> To: user@hadoop.apache.org
> Subject: RE: ERROR: ssh-copy-id: command not found IN HADOOP DISTRIBUTED MODE
>
> I think master machine authorized-key  is missed.
>
> Please do following..
>
> ssh-copy-id -i ~/.ssh/id_rsa.pub {IP of Master machine}..
>
> Before starting cluster better to check whether ssh is enable or not by doing ssh {slave
or master IP} from Master ( here it should not ask passwd).
>
> ________________________________________
> From: yogesh.kumar13@wipro.com [yogesh.kumar13@wipro.com]
> Sent: Thursday, October 25, 2012 7:49 PM
> To: user@hadoop.apache.org
> Subject: RE: ERROR: ssh-copy-id: command not found IN HADOOP DISTRIBUTED MODE
>
> Thanks All,
>
> The copy has been done but here comes another horrible issue.
>
> when I log in as Master
>
>
> ssh Master it asks for Password
>
> Master:~ mediaadmin$ ssh Master
> Password: abc
> Last login: Thu Oct 25 17:13:30 2012
> Master:~ mediaadmin$
>
>
> and for Slave it dosent ask.
>
> Master:~ mediaadmin$ ssh pluto@Slave
> Last login: Thu Oct 25 17:15:16 2012 from 10.203.33.80
> plutos-iMac:~ pluto$
>
>
>
> now if I run command start-dfs.sh from Master logged in terminal it asks for passwords
>
> Master:~ mediaadmin$ ssh master
> Password:
> Last login: Thu Oct 25 17:16:44 2012 from master
> Master:~ mediaadmin$ start-dfs.sh
> starting namenode, logging to /HADOOP/hadoop-0.20.2/bin/../logs/hadoop-mediaadmin-namenode-Master.out
> Password:Password: abc
> Password: abc
> Password:
> Master: Permission denied (publickey,keyboard-interactive).
> Password:
> Password:
> Slave: Permission denied (publickey,keyboard-interactive).
> ....
>
>
> Why is it asking for password when I have configure password less ssh?
> And even its not accepting Master password and Slave password..
>
>
> Please help and suggest
>
> Thanks & regards
> Yogesh Kumar
>
> ________________________________________
> From: Nitin Pawar [nitinpawar432@gmail.com]
> Sent: Thursday, October 25, 2012 3:31 PM
> To: user@hadoop.apache.org
> Subject: Re: ERROR: ssh-copy-id: command not found IN HADOOP DISTRIBUTED MODE
>
> operating system you are using will be of good help to answer your question.
>
> Normally the command you are looking for is provided by "openssh-clients"
> Install this package if not already.
>
> If installed normally on a redhat system its placed at /usr/bin/ssh-copy-id
>
> On Thu, Oct 25, 2012 at 3:24 PM,  <yogesh.kumar13@wipro.com> wrote:
>> Hi All,
>>
>> I am trying to copy the public key by this command.
>>
>> Master:~ mediaadmin$ ssh-copy -id -i $HOME/.ssh/id_rsa.pub pluto@Slave
>>
>> I have two machines Master Name is pluto and same name is of Slave. (Admin)
>>
>> And I got this error, Where I am going wrong?
>>
>> ssh-copy-id: command not found
>>
>>
>> Please suggest
>>
>> Thanks & regards
>> Yogesh Kumar
>>
>>
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>
>
>
> --
> Nitin Pawar
>
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of this message and any attachments.
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email and any attachments for the presence of viruses. The company accepts no liability for
any damage caused by any virus transmitted by this email.
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> www.wipro.com
>
> Please do not print this email unless it is absolutely necessary.
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> The information contained in this electronic message and any attachments to this message
are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential
or privileged information. If you are not the intended recipient, you should not disseminate,
distribute or copy this e-mail. Please notify the sender immediately and destroy all copies
of this message and any attachments.
>
> WARNING: Computer viruses can be transmitted via email. The recipient should check this
email and any attachments for the presence of viruses. The company accepts no liability for
any damage caused by any virus transmitted by this email.
>
> www.wipro.com

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