Hi,
I have the necessity to run a korn shell on a remote server (both HP-UX servers) using the ssh command.
The sintax that I use is
ssh -l <remote user> <IP address of remote host> command(ksh script)
Pressing enter I need to set the password of the remote user. Is it possible to evoid to insert the password? In this way I can insert in may local ksh script the above command.
Many thanks in advance for your kind cooperation.
Giovanni
create ssh keys on your local server and propagate the authorized_keys2 file to your $HOME/.ssh directories on the remote servers ... see "man ssk-keygen" and "man ssh" ...
good luck!
Client
Steps: For SSH Without a Password
On the client run the following commands:
$ mkdir -p $HOME/.ssh
$ chmod 0700 $HOME/.ssh
$ ssh-keygen -t dsa -f $HOME/.ssh/id_dsa -P ''
This should result in two files,
$HOME/.ssh/id_dsa (private key) & $HOME/.ssh/id_dsa.pub (public key).
Copy $HOME/.ssh/id_dsa.pub to the server.
Server:
On the server run the following commands:
$ mkdir -p $HOME/.ssh
$ cat id_dsa.pub >> $HOME/.ssh/authorized_keys2
$ chmod 0600 $HOME/.ssh/authorized_keys2
Depending on the version of OpenSSH the following commands may also be required:
$ cat id_dsa.pub >> $HOME/.ssh/authorized_keys
$ chmod 0600 $HOME/.ssh/authorized_keys
An alternative is to create a link from authorized_keys2 to authorized_keys:
$ cd $HOME/.ssh && ln -s authorized_keys2 authorized_keys
On the client test the results by ssh'ing to the server:
$ ssh -i $HOME/.ssh/id_dsa server
(Optional) Add the following $HOME/.ssh/config on the client:
Host server
IdentityFile ~/.ssh/id_dsa
This allows ssh access to the server without having to specify the path to the id_dsa file as an argument to ssh each time.