[K12OSN] rsync help

[Brian Chivers]

Dimitri Yioulos wrote:
> Good morning to all.
> 
> I note at least some of you use rsync on a regular basis, and would appreciate 
> your help.
> 
> Some background info.:  both A and B run CentOS 3.5.  SSH and rsync are 
> installed, and I created the user rsync, on both machines.
> 
> I have a project in which I need to update files in a directory on server B 
> with the originals on server A.  I have a script that accomplishes this using 
> rsync, and it works very well.  However, I'm prompted for a password when 
> connecting to server B.  As I want to cron the running of the script, I don't 
> want to be prompted for the password.
> 
> I've read how-to's on using rsync, and believe that I must create an rsync 
> server on server B.  I guess that entails creating an rsyncd.conf file, then 
> running rysnc as a daemon.  Prior to that, however, it looks like I need to 
> create an rsa key pair on server A, then get the public key to server B.  
> I've done this.  The how-to's go on to say that I should load the key into 
> memory with the "ssh-add" command.  That doesn't work unless I use the 
> "ssh-agent $SHELL" first.  I've done this, as well.  However, when I try to 
> access server B with the "slogin" command, I'm still prompted for a password.
> 
> I really need to set this up so that the script will run unattended.  Your 
> help would be most appreciated.
> 
> Thanks.
> 
> Dimitri
> 
I've just done this for building a backup server.

Try this link as a start

http://www.hantslug.org.uk/cgi-bin/wiki.pl?LinuxHints/SSHwithoutPasswords

& this one

http://dsg.port.ac.uk/~rjb/misc/howto/ssh/index.php

The second one makes more sense if you've read the first one first :-)

Brian


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