?
Solved

Are you sure you want to continue connecting (yes/no)?

Posted on 2011-09-12
5
Medium Priority
?
940 Views
Last Modified: 2012-05-12
Hi,

On Red Hat Enterprise Linux Server release 5.4 (Tikanga),
I am trying to create a script that will automatically install software on a remote server.
I have it's root password and there are no security issues.
When I run the ssh/scp commands I get the question in the title.
I am looking for a way to automatically acknowledge this question

My code looks somthing like this:

ssh-keygen -R ${DG_NODE}
rm -rf  ~root/.ssh/id_rsa*                                            
alias scp='scp -o StrictHostKeyChecking=no -o BatchMode=yes '
ssh-keygen -q -t rsa -f aaa -N "" -f ~root/.ssh/id_rsa
scp ~root/.ssh/id_rsa.pub root@${DG_NODE}:~root/.ssh/authorized_keys

Using the -o UserKnownHostsFile=/dev/null  option did not help as well.
Thanks
0
Comment
Question by:peledc
  • 2
  • 2
5 Comments
 
LVL 7

Expert Comment

by:jackiechen858
ID: 36525547
Edit /etc/ssh/ssh_config:


StrictHostKeyChecking no
0
 
LVL 29

Expert Comment

by:Jan Springer
ID: 36525564
If you have copied the public key over and performed a manual ssh or scp using that from/to account, then you shouldn't be asked again unless the keys change.
0
 
LVL 21

Accepted Solution

by:
Papertrip earned 2000 total points
ID: 36525958
Without a known_hosts key, no special options:
[user@phxbastion1 ~]$ ssh den1mmail3.den.domain.com
The authenticity of host 'den1mmail3.den.domain.com (10.191.15.226)' can't be established.
RSA key fingerprint is 9e:e6:c7:a6:ab:33:00:29:2a:bd:fa:67:6d:27:39:a6.
Are you sure you want to continue connecting (yes/no)?

Open in new window

Without a known_hosts key, but with special options:
[user@phxbastion1 ~]$ ssh den1mmail3.den.domain.com -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null
Warning: Permanently added 'den1mmail3.den.domain.com,10.191.15.226' (RSA) to the list of known hosts.
user@den1mmail3.den.domain.com's password:

Open in new window

0
 
LVL 29

Expert Comment

by:Jan Springer
ID: 36525996
known_hosts gets automatically updated with each new connection.  The author should not have to manually modify that file.
0
 
LVL 21

Expert Comment

by:Papertrip
ID: 36526063
known_hosts gets automatically updated with each new connection.  The author should not have to manually modify that file.

I don't think anyone is suggesting that.
0

Featured Post

Worried about phishing attacks?

90% of attacks start with a phish. It’s critical that IT admins and MSSPs have the right security in place to protect their end users from these phishing attacks. Check out our latest feature brief for tips and tricks to keep your employees off a hackers line!

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

​Being a Managed Services Provider (MSP) has presented you  with challenges in the past— and by meeting those challenges you’ve reaped the rewards of success.  In 2014, challenges and rewards remain; but as the Internet and business environment evol…
This installment of Make It Better gives Media Temple customers the latest news, plugins, and tutorials to make their Grid shared hosting experience that much smoother.
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.

569 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question