[Ubuntu Oregon] Ubuntu Hour

Ronald Chmara ronabop at gmail.com
Fri Dec 14 05:34:56 UTC 2012


So, did debug verbosity (-vvv) or specifying a port (-p 2222) help any to
understand the problem?


On Thu, Dec 13, 2012 at 7:13 PM, Robin Haberman <robin.haberman at gmail.com>wrote:

> It's in the text I am following for an Hadoop platform.
>
> On Thu, Dec 13, 2012 at 6:53 PM, Ronald Chmara <ronabop at gmail.com> wrote:
> > Try ssh - vvv? That should give a bunch more data...
> >
> > On Dec 13, 2012 6:42 PM, "Robin Haberman" <robin.haberman at gmail.com>
> wrote:
> >>
> >>    I need some feedback from the group.   By the way I have gone to
> >> the Ubuntu and Internet forums and found answers all over the place
> >> about this problem.
> >>
> >>    One of the sub-projects I am working on is to set up a Hadoop
> >> testbed  (single-node cluster) on Ubuntu 11.10 (just a stripped down
> >> 32 bit P5 loaded with hard drives).  I am working from a paper by
> >> Michael G. Noll, dated August 5, 2007 (last updated: June 29, 2012) .
> >> The part where I am having problems is to get the SSH set up by
> >> connecting to the local machine with the hduser user.  I keep getting
> >> the following message:
> >>
> >> no4 at no4-PCV-RX550-UC:~$ ssh localhost
> >> ssh: connect to host localhost port 22: Connection refused
> >> no4 at no4-PCV-RX550-UC:~$
> >>
> >>    I have run through a number of steps to make sure I have both the
> >> ssh server and client loaded, reloaded – working and running.  But I
> >> still run into the same error message.  What am I missing?
> >>
> >> Any help would be appreciated.
> >> Thanks, Robin
> >>
> >> CLI output listed below
> >>
> >>
> >> no4 at no4-PCV-RX550-UC:~$ sudo service ssh status
> >> ssh start/running, process 24048
> >>
> >>
> >> no4 at no4-PCV-RX550-UC:~$ dpkg -l | grep ssh
> >> ii  openssh-client                         1:5.8p1-7ubuntu1
> >>                  secure shell (SSH) client, for secure access to
> >> remote machines
> >> ii  openssh-server                         1:5.8p1-7ubuntu1
> >>                  secure shell (SSH) server, for secure access from
> >> remote machines
> >> ii  ssh                                    1:5.8p1-7ubuntu1
> >>                  secure shell client and server (metapackage)
> >> ii  ssh-askpass-gnome                      1:5.8p1-7ubuntu1
> >>                  interactive X program to prompt users for a
> >> passphrase for ssh-add
> >> ii  ssh-import-id                          2.5-0ubuntu2
> >>                  securely retrieve an SSH public key and install it
> >> locally
> >>
> >>
> >> no4 at no4-PCV-RX550-UC:~$ sudo iptables -L | grep ssh
> >> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh
> >> ACCEPT     udp  --  anywhere             anywhere            udp dpt:ssh
> >> ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ssh
> >> ACCEPT     udp  --  anywhere             anywhere            udp dpt:ssh
> >>
> >>
> >> no4 at no4-PCV-RX550-UC:~$ sudo netstat -anp | grep sshd
> >> tcp        0      0 0.0.0.0:2222            0.0.0.0:*
> >> LISTEN      24048/sshd
> >> tcp6       0      0 :::2222                 :::*
> >> LISTEN      24048/sshd
> >>
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