[ec2-beta] Ec2-beta Digest, Vol 5, Issue 10

Tony Silveira tony at netgifted.com
Sat Apr 11 14:41:20 BST 2009


help

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From: ec2-beta-request at lists.ubuntu.com
Sent: Saturday, 11 April 2009 7:00 AM
To: ec2-beta at lists.ubuntu.com
Subject: Ec2-beta Digest, Vol 5, Issue 10

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Today's Topics:

   1. Re:  Ec2-beta Digest, Vol 5, Issue 9 (brian mullan)
   2. Re:  Ubuntu EU AMI (Eric Hammond)
   3. Re:  Installing free NX on ubuntu server (Eric Hammond)


----------------------------------------------------------------------

Message: 1
Date: Fri, 10 Apr 2009 16:26:15 -0700 (PDT)
From: brian mullan <bmullan at yahoo.com>
Subject: Re: [ec2-beta] Ec2-beta Digest, Vol 5, Issue 9
To: ec2-beta at lists.ubuntu.com
Message-ID: <744942.86815.qm at web35607.mail.mud.yahoo.com>
Content-Type: text/plain; charset="us-ascii"

Micah

not sure I understand what you are doing buton Amazon when you start an "instance" each instance is given 

	* a PUBLIC ip address 
	* a PUBLIC dns addressand each instance is given

	* a PRIVATE ip address
	* a PRIVATE dns address
the PRIVATE addresses are not accessible from the internet but ONLY from inside AWS.

maybe you can use the PRIVATE address's ftp btwn instances and provide more security

brian



----------------------------------------------------------------------

Message: 1
Date: Sun, 05 Apr 2009 14:47:13 -0400
From: Micah Walter <micahwalter at me.com>
Subject: [ec2-beta] Springloops Deployment via SFTP
To: ec2-beta at lists.ubuntu.com
Message-ID: <1870D4C5-D182-4F1A-B76C-F58A5FA104E8 at me.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

Eric,
Sorry for the delay getting back to you. This question about deploying  
from Springloops sort of stems from my lack of understanding about  
security and ssh and how the Ubuntu EC2 logins are set up. So I  
appologize if this sounds kinda silly..

Springloops is a Subversion repository service online. It allows you  
to set up multiple server destinations which it can deploy your  
projects to via FTP or SFTP. It's pretty simple actually, but I am  
curious as to weather or not this is a safe thing to do as it would  
require setting up an FTP server on my instance.

So far I have just been using ssh to login with my keypair, and have  
been using scp to move files up and down to my local machine... would  
there be a risk in setting up an FTP server, or maybe a better way to  
ask this would be, would this be in keeping with the current ssh  
keypair style login/security model for the server itself?
-micah




Micah:

It's not clear to me what you're trying to accomplish.  Are you wanting
to run the web app on EC2 or on Springloops.com?  Are you trying to
access subversion from EC2? or FTP?  What about the key settings
concerns you and what key settings are you referring to?

If you're still having problems, could you rephrase your question and
provide more details?



------------------------------

Message: 2
Date: Sun, 05 Apr 2009 14:46:30 -0400
From: Micah Walter <micahwalter at me.com>
Subject: [ec2-beta] Springloops Follow Up
To: ec2-beta at lists.ubuntu.com
Message-ID: <EED1CB7E-12A9-4262-BCED-CE8BD8CF0310 at me.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes

Eric,
Sorry for the delay getting back to you. This question about deploying  
from Springloops sort of stems from my lack of understanding about  
security and ssh and how the Ubuntu EC2 logins are set up. So I  
appologize if this sounds kinda silly..

Springloops is a Subversion repository service online. It allows you  
to set up multiple server destinations which it can deploy your  
projects to via FTP or SFTP. It's pretty simple actually, but I am  
curious as to weather or not this is a safe thing to do as it would  
require setting up an FTP server on my instance.

So far I have just been using ssh to login with my keypair, and have  
been using scp to move files up and down to my local machine... would  
there be a risk in setting up an FTP server, or maybe a better way to  
ask this would be, would this be in keeping with the current ssh  
keypair style login/security model for the server itself?
-micah




Micah:

It's not clear to me what you're trying to accomplish.  Are you wanting
to run the web app on EC2 or on Springloops.com?  Are you trying to
access subversion from EC2? or FTP?  What about the key settings
concerns you and what key settings are you referring to?

If you're still having problems, could you rephrase your question and
provide more details?



------------------------------

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Message: 2
Date: Fri, 10 Apr 2009 22:39:11 -0700
From: Eric Hammond <ehammond at thinksome.com>
Subject: Re: [ec2-beta] Ubuntu EU AMI
To: Alon Girmonsky <alongir at gmail.com>
Cc: ec2-beta at lists.ubuntu.com
Message-ID: <49E02CFF.2040805 at thinksome.com>
Content-Type: text/plain; charset=ISO-8859-1

Alon:

This image is an official Ubuntu beta image for EC2 and this ec2-beta
mailing list is the right place to seek support for it:

 ami-5e173f2a
 canonical-beta-eu/ubuntu-intrepid-beta2-20090226-i386.manifest.xml

The following images are ones I build and list on http://alestic.com

 ami-2a10385e
 alestic-32-eu-west-1/ubuntu-8.10-intrepid-desktop-20090216.manifest.xml

 ami-2810385c
 alestic-32-eu-west-1/ubuntu-8.10-intrepid-base-20090216.manifest.xml

You can post your non-beta, community image related questions to the
following group and I or another community member will be glad to help out:

 http://groups.google.com/group/ec2ubuntu

--
Eric Hammond
ehammond at thinksome.com



Alon Girmonsky wrote:
> Hi Eric.
> 
> I was able to SSH to ami-5e173f2a
> However, failed to SSH to ami-2810385c and ami-2a10385e
> 
> Ideas?



------------------------------

Message: 3
Date: Sat, 11 Apr 2009 00:05:02 -0700
From: Eric Hammond <ehammond at thinksome.com>
Subject: Re: [ec2-beta] Installing free NX on ubuntu server
To: Alon Girmonsky <alongir at gmail.com>
Cc: ec2-beta at lists.ubuntu.com
Message-ID: <49E0411E.90503 at thinksome.com>
Content-Type: text/plain; charset=ISO-8859-1

Alon:

The official Ubuntu beta images for EC2 disable password authentication
in ssh for improved security.

To use password authentication, you would need to enable it on the EC2
instance using something like:

  sudo perl -pi -e 's/(PasswordAuthentication) no/$1 yes/' \
    /etc/ssh/sshd_config
  sudo /etc/init.d/ssh reload

If this doesn't fix the problem, you'll need to do more debugging,
perhaps by trying to ssh -v in as the user you created and watching:

  tail -f /var/log/auth.log

Make sure you use very secure passwords using something like:

  sudo apt-get install -y pwgen
  pwgen -s 16 1

I'd love to hear if anybody has figured out how to use NX with ssh
certificates instead of passwords (nxssh -i KEYPAIR.pem ...?).

--
Eric Hammond
ehammond at thinksome.com



Alon Girmonsky wrote:
> BTW,
> the problem I'm having is that I follow the installation instructions
> and everything works well. I add a user by using the command:
> sudo adduser
> I try to use the NX client to access. Everything goes well up to a point
> where the NX returns an answer: Authentication failed for user XXX
> 
> On Wed, Apr 8, 2009 at 10:39 AM, Alon Girmonsky <alongir at gmail.com
> <mailto:alongir at gmail.com>> wrote:
> 
>     I am having a problem installing nomachine server on Ubuntu server.
>     Specifically ami-5e173f2a.
> 
>     I don't need a full desktop on the server. I need to be able to open
>     specific applications remotely. For that purpose I am using the NX
>     free addition. Does this make sense to you?
> 
>     In this case would it make sense to use the desktop version of
>     Ubuntu. Again, I do no need a full desktop only to run a remote
>     application (I.E xterm)
> 
>     Thanks,
>     Alon.
> 
> 



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