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Date: Fri, 18 Apr 2008 09:00:51 +0900
From: "Edward J. Yoon" <edward@udanax.org>
To: core-user@hadoop.apache.org
Subject: Re: Query
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References: <2d892c4b0804150754k4f5e8df1y7ddba3fe7ebcba6c@mail.gmail.com>
	 <eb4706e0804161817j44604d8dmfdf17305033cc2ea@mail.gmail.com>
	 <2d892c4b0804171559h3baa042xd3559247b6b3428f@mail.gmail.com>
	 <eb4706e0804171613j3838a9a1te411cf9663c4026@mail.gmail.com>
	 <2d892c4b0804171626k6460c1c7j40e89e25343f8246@mail.gmail.com>
	 <eb4706e0804171635ka5dc3f9u2ca5f4ad50259eb8@mail.gmail.com>
	 <2d892c4b0804171643n2c261bdbycc16ee0326e8777d@mail.gmail.com>

It wasn't too difficult though I do not remember the details.
Maybe searching the WWW does reveal the details

http://www.google.com/search?q=dyndns+and+ssh

-Edward

On Fri, Apr 18, 2008 at 8:43 AM, Prerna Manaktala
<prerna.manaktala@gmail.com> wrote:
> how to do that?
>
>
> On Thu, Apr 17, 2008 at 7:35 PM, Edward J. Yoon <edward@udanax.org> wrote:
> > Your ISP may be blocking access to critical ports behind their
> >  routers. Can you access any ports on your router? You may want to try
> >  setting up your router to forward some other port (80?) to your
> >  server's port 22.
> >
> >  Thanks,
> >  Edward.
> >
> >  On Fri, Apr 18, 2008 at 8:26 AM, Prerna Manaktala
> >
> >
> > <prerna.manaktala@gmail.com> wrote:
> >  > yes this thing I already tried and in working fine but as I told u I
> >  > am not able to ssh to any host I created at the site dyndns
> >  >
> >  >
> >  > On Thu, Apr 17, 2008 at 7:13 PM, Edward J. Yoon <edward@udanax.org> wrote:
> >  > > Administrator@xanadu ~
> >  > >  $ ssh
> >  > >  usage: ssh [-1246AaCfgKkMNnqsTtVvXxY] [-b bind_address] [-c cipher_spec]
> >  > >            [-D [bind_address:]port] [-e escape_char] [-F configfile]
> >  > >            [-i identity_file] [-L [bind_address:]port:host:hostport]
> >  > >            [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]
> >  > >            [-R [bind_address:]port:host:hostport] [-S ctl_path]
> >  > >            [-w local_tun[:remote_tun]] [user@]hostname [command]
> >  > >
> >  > >  Administrator@xanadu ~
> >  > >  $ ssh localhost
> >  > >  ssh: connect to host localhost port 22: Connection refused
> >  > >
> >  > >  $ ssh-host-config
> >  > >  Generating /etc/ssh_host_key
> >  > >  Generating /etc/ssh_host_rsa_key
> >  > >  Generating /etc/ssh_host_dsa_key
> >  > >  Generating /etc/ssh_config file
> >  > >  Privilege separation is set to yes by default since OpenSSH 3.3.
> >  > >  However, this requires a non-privileged account called 'sshd'.
> >  > >  ...
> >  > >  Host configuration finished. Have fun!
> >  > >
> >  > >  Administrator@xanadu ~
> >  > >  $ net start sshd
> >  > >  The CYGWIN sshd service is starting.
> >  > >  The CYGWIN sshd service was started successfully.
> >  > >
> >  > >  Administrator@xanadu ~
> >  > >  $ ssh localhost
> >  > >  The authenticity of host 'localhost (127.0.0.1)' can't be established.
> >  > >  RSA key fingerprint is a2:6f:31:ed:d1:d9:7c:53:d8:b3:9d:79:82:9f:55:92.
> >  > >  Are you sure you want to continue connecting (yes/no)? yes
> >  > >  Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
> >  > >
> >  > >  On Fri, Apr 18, 2008 at 7:59 AM, Prerna Manaktala
> >  > >
> >  > >
> >  > > <prerna.manaktala@gmail.com> wrote:
> >  > >  > thanks
> >  > >  > Already installed.
> >  > >  > but still ssh to the newly created host in dyndns site is not working
> >  > >  >
> >  > >  > ssh -i path to id_rsa prerna.dyndns.org..
> >  > >  > it says connection to port 22 refused
> >  > >  >
> >  > >  > Prerna
> >  > >  >
> >  > >  >
> >  > >  > On Wed, Apr 16, 2008 at 9:17 PM, Edward J. Yoon <edward@udanax.org> wrote:
> >  > >  > > I didn't try to run on cygwin, but you may need to install a ssh.
> >  > >  > >
> >  > >  > >  http://pigtail.net/LRP/printsrv/cygwin-sshd.html
> >  > >  > >
> >  > >  > >  On Tue, Apr 15, 2008 at 11:54 PM, Prerna Manaktala
> >  > >  > >  <prerna.manaktala@gmail.com> wrote:
> >  > >  > >  > I tried to set up hadoop with cygwin according to the
> >  > >  > >  >  paper:http://developer.amazonwebservices.com/connect/entry.jspa?externalID=873
> >  > >  > >  >  But I had problems working with dyndns.I created a new host
> >  > >  > >  >  there:prerna.dyndns.org
> >  > >  > >  >  and gave the ip address of it in hadoop-ec2-env.sh as a value of MASTER_HOST.
> >  > >  > >  >  But when I do bin/hadoop-ec2 start-hadoop the error comes:
> >  > >  > >  >  ssh:connect to host prerna.dyndns.org,port 22:connection refused
> >  > >  > >  >  ssh failed for root@prerna.dyndns.org
> >  > >  > >  >  Also a warning comes that:id_rsa_gsg-keypair not accesible:No such
> >  > >  > >  >  file or directory though there is this file.
> >  > >  > >  >
> >  > >  > >  >  Thanks
> >  > >  > >  >  Prerna
> >  > >  > >  >
> >  > >  > >
> >  > >  > >
> >  > >  > >
> >  > >  > >  --
> >  > >  > >  B. Regards,
> >  > >  > >  Edward J.
> >  > >  >
> >  > >
> >  > >
> >  > >
> >  > >
> >  > >
> >  > > --
> >  > >  B. Regards,
> >  > >  Edward J. Yoon
> >  > >
> >  >
> >
> >
> >
> >  --
> >
> >
> > B. Regards,
> >  Edward J. Yoon
> >
>


-- 
B. Regards,
Edward J. Yoon