01-17-2013
This is a fairly common question.
The fairly common answer is to use the -n option of SSH.
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1. Shell Programming and Scripting
I have a script that connects to remote servers using a public key. Some of the servers are not set up for the public key and I receive the following when I attempt to ssh: The authenticity of host 'XXX' can't be established.
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2. UNIX for Dummies Questions & Answers
Hi,
Not sure if this is possible, I have a server (SERVER1) that is currently set up as a remote SSH host. My client SSH host (SERVER2) is connecting to SERVER1 to scp a file with no password.
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3. Shell Programming and Scripting
I have written the following script to update some Debian boxes.
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4. Shell Programming and Scripting
Hi All,
I need to prepare a script.
Description:
Currently i am in server "x(ubuntu os)", here i need to develop a script to ssh to another server "y(ubuntu os)", i have password less authentication to "y". i have done the below
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5. UNIX for Advanced & Expert Users
Hi,
I have two SunOs sparc servers mac1 and mac2.
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However, it is failing after authentication.
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Discussion started by: mohtashims
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6. Shell Programming and Scripting
Hi ,
I am trying to read a list of hosts from a config file and trying to get file list from that host. For this I have used one while loop.
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7. Shell Programming and Scripting
Team,
Presently I have 5 ip address kept in ip_abc1 file, for each of the ip address listed, i need to login on each ipaddress
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ssh -p 8101 karaf@<ip.address_for the specific ip address as logged in>
password
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Hello I am writing a script in a local machine, i am using ssh, here i am not able to using back ticks & input file to while loop. here is my script
ssh -q server1
a=`ps -ef | grep ccms | awk {print $1}`
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9. Shell Programming and Scripting
If I am running a bash command, and some awk getting the ethernet adapter on the local machine. It works fine. But if I will run it from the remote, it is EMPTY on echo and throwing error in grep.
Thank you
This work perfectly fine
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Discussion started by: kenshinhimura
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LEARN ABOUT DEBIAN
pam_ssh
PAM_SSH(8) BSD System Manager's Manual PAM_SSH(8)
NAME
pam_ssh -- authentication and session management with SSH private keys
DESCRIPTION
The SSH authentication service module for PAM, pam_ssh provides functionality for two PAM categories: authentication and session management.
SSH Authentication Module
The SSH authentication component verifies the identity of a user by prompting the user for a passphrase and verifying that it can decrypt at
least one of the user's SSH login keys using that passphrase.
The following options may be passed to the authentication module:
debug syslog(3) debugging information at LOG_DEBUG level.
use_first_pass If the authentication module is not the first in the stack, and a previous module obtained the user's password, then
that password is used to decrypt the user's SSH login keys. If this fails, then the authentication module returns
failure without prompting the user for a passphrase.
try_first_pass Similar to the use_first_pass option, except that if the previously obtained password fails to decrypt any of the SSH
login keys, then the user is prompted for an SSH passphrase.
try_first_pass has no effect if pam_ssh is the first module on the stack, or if no previous modules obtained the
user's password.
allow_blank_passphrase Allow SSH keys with no passphrase.
If neither use_first_pass nor try_first_pass is specified, pam_ssh will unconditionally ask for an SSH passphrase.
In addition to the above authentication procedure, all standard SSH keys (identity, id_rsa, id_dsa) for which the obtained password matches
will be decrypted.
SSH Session Management Module
The SSH session management component initiates sessions by starting an SSH agent, passing it any SSH login keys it decrypted during the
authentication phase, and sets the environment variables accordingly.
The SSH session management component terminates the session by killing the previously started SSH agent by sending it a SIGTERM.
The following options may be passed to the session management module:
debug syslog(3) debugging information at LOG_DEBUG level.
INFORMATION LEAKS
Be careful with the using the try_first_pass option when pam_ssh is the first authentication module because it will then leak information
about existing users without login keys: such users will not be asked for a specific SSH passphrase, whereas non-existing users and existing
users with login keys will be asked for a passphrase.
FILES
$HOME/.ssh/identity
$HOME/.ssh/id_rsa
$HOME/.ssh/id_dsa OpenSSH DSA/RSA keys decrypted by pam_ssh.
$HOME/.ssh/login-keys.d/ Location of (possibly symbolic links to) OpenSSH DSA/RSA keys used for authentication and decrypted by pam_ssh.
/var/log/auth.log Usual log file for syslog(3)
SEE ALSO
ssh-agent(1), syslog(3), pam.conf(5), pam(8).
AUTHORS
Andrew J. Korty <ajk@iu.edu> wrote pam_ssh. Dag-Erling Smorgrav wrote the original OpenPAM support code. Mark R V Murray wrote the original
version of this manual page. Jens Peter Secher introduced the login-key concept.
BSD
November 26, 2001 BSD