01-27-2009
Quote:
Originally Posted by
jim mcnamara
ssh-keygen asks if you want to use a password - you have to leave the answer blank and hit return. You will have to create new keys if you want passwordless.
This explains it:
ssh-keygen: password-less SSH login
ssh is a reasonably secure protocol. There is no good way to get ssh to accept a password in a script. That defeats security. That is the reason for keys.
I have not tried it, but apparently you can make an expect script to give a password to ssh or sftp or whatever.
I'm using a sh script - #!/bin/sh
I don't think I can use expect with this. I believe expect requires tcl to be installed. That takes it back to my initial question "Is there any way of sending the passphrase in the script?"
9 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hello,
I want to use a shell-script to transfer data over sftp.
I donīt find a way to login in automatically.
I tried to send the password in a script like possible with
ftp
sftp user@server << cmd
password
cd /distant/directory
lcd /local/directoryget ssh_install
get ( or put) your... (2 Replies)
Discussion started by: olso
2 Replies
2. UNIX for Advanced & Expert Users
In which case could be better don't use a passphrase creating an authentication key for ssh comunications?
Thanks in advance. (1 Reply)
Discussion started by: Minguccio75
1 Replies
3. Solaris
Hello all,
Today we run ssh with keys on all our Solaris systems. But I wounder: Is it possible to add another authentication too. Like the os/system regular password so the users first need to enter the ssh phasssphrase and after that they need to enter the os/system password.
I need like... (3 Replies)
Discussion started by: jOOc
3 Replies
4. Shell Programming and Scripting
I have a script that will ssh to several different servers, perform a command, display the output, and exit. It works well, but I have to enter my password for each server. That gets a little cumbersome when you have a couple dozen servers. Anyone out there know how to automate this so that I only... (2 Replies)
Discussion started by: fedexer
2 Replies
5. Shell Programming and Scripting
Hi guys, I have a script which looks a little like this;
grep $id /usr/local/production/service/distributor/clients/*/out/events.xml | awk -F/ '{print $8}'
I want to be able to run this on my dev box, so need to add something into the script which will SSH onto the live server, collect the... (2 Replies)
Discussion started by: JayC89
2 Replies
6. UNIX for Advanced & Expert Users
We have a number of linux clusters running Oracle. The clusters require that all member nodes have promptless/passwordless login through ssh (ie. the keys were created with null passphrases). We also have a management server that is not a member of any cluster but routinely connects to nodes of all... (3 Replies)
Discussion started by: Squeakygoose
3 Replies
7. OS X (Apple)
ssh passphrase permissions issues
I will try to be as thorough as possible, but keep in mind I am a designer, not a programmer... I do have linux mdadm experience and am reasonably comfortable behind the terminal, but I may need things to be spelled out for me. I am using 2 new-ish Macs with... (1 Reply)
Discussion started by: Ahab the Eskimo
1 Replies
8. Solaris
Hi Folks,
I have setup a passwordless connection from my Linux ( source) machine toSolaris ( destination ) machine. I have added passphrase while creating the rsa key. Now problem is each time when i make a connection i have to give the passphrase to make connection. How to override this ?
I... (4 Replies)
Discussion started by: chidori
4 Replies
9. Shell Programming and Scripting
I would like to write a bash shell script which will connect to remote server using passphrase. (I have public-private infrastructure created, and as per instruction, I must not use password less ssh).
This particular script will be fired from cron.
Can you please advice how I can supply the... (2 Replies)
Discussion started by: atanubanerji
2 Replies
LEARN ABOUT PHP
ssh-keysign
ssh-keysign(1M) ssh-keysign(1M)
NAME
ssh-keysign - ssh helper program for host-based authentication
SYNOPSIS
ssh-keysign
ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication
with SSH protocol version 2. This signature is of data that includes, among other items, the name of the client host and the name of the
client user.
ssh-keysign is disabled by default and can be enabled only in the global client configuration file /etc/ssh/ssh_config by setting Host-
basedAuthentication to yes.
ssh-keysign is not intended to be invoked by the user, but from ssh. See ssh(1) and sshd(1M) for more information about host-based authen-
tication.
/etc/ssh/ssh_config
Controls whether ssh-keysign is enabled.
/etc/ssh/ssh_host_dsa_key
/etc/ssh/ssh_host_rsa_key
These files contain the private parts of the host keys used to generate the digital signature. They should be owned by root, readable
only by root, and not accessible to others. Because they are readable only by root, ssh-keysign must be set-uid root if host-based
authentication is used.
ssh-keysign will not sign host-based authentication data under the following conditions:
o If the HostbasedAuthentication client configuration parameter is not set to yes in /etc/ssh/ssh_config. This setting cannot be overri-
den in users' ~/.ssh/ssh_config files.
o If the client hostname and username in /etc/ssh/ssh_config do not match the canonical hostname of the client where ssh-keysign is
invoked and the name of the user invoking ssh-keysign.
In spite of ssh-keysign's restrictions on the contents of the host-based authentication data, there remains the ability of users to use it
as an avenue for obtaining the client's private host keys. For this reason host-based authentication is turned off by default.
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWsshu |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
ssh(1), sshd(1M), ssh_config(4), attributes(5)
AUTHORS
Markus Friedl, markus@openbsd.org
HISTORY
ssh-keysign first appeared in Ox 3.2.
9 Jun 2004 ssh-keysign(1M)