12-02-2009
Identify which authentication method was used at logon
Experts,
Is there any way to know which authentication method the user used to login into the box? I mean, is possible to identify if an active user had logged using keys or password for example?
Let me clarify: we have a script that we want to allow users to execute only if they have used their private keys to login the machine.
Is there such a thing?
We are using Solaris 10.
Thanks in advance.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I stupidly changed the shell of the root user to one that does not exist, and now when I try to lgon it says it cannot find the path to my shell and will not let me proceed any further. Is there any way I can get round this without re-installing the OS?
Thanks for any replies. (8 Replies)
Discussion started by: SRP
8 Replies
2. UNIX for Dummies Questions & Answers
Hi:
I am wondering if anyone has a logon script to be put in /etc/profile or environments that will display the logged on username and path? (4 Replies)
Discussion started by: capeme
4 Replies
3. Shell Programming and Scripting
hi
how can I know abt the details of current user who are logged on and as well as those users who currently have an account but are not logged on?
Thanks (1 Reply)
Discussion started by: nokia1100
1 Replies
4. Forum Support Area for Unregistered Users & Account Problems
This is probably a dumb question and a pipe dream, but is there (or can there be) an alternate way to logon?
I can access the site from work, but they have blocked the actual login URL. I dont know exactly what the URL is since I can obviously log on from home, but I know it has the word login.... (2 Replies)
Discussion started by: earnstaf
2 Replies
5. Solaris
Hi
I am envountring a problem while I login using ssh on a sun box to a remote box.
I use ssh user@server and it takes long time to ask for a password..
does anyone knows the reason behind this? or is there a way that this could be solved
Thanks,
Antony (8 Replies)
Discussion started by: antointoronto
8 Replies
6. AIX
In /etc/security/user, we can set which authentication method we use for each user. for example:
test:
admin = false
rlogin = false
SYSTEM = "NONE"
I want to test whether SYSTEM=NONE (without ") is acceptable. How can I verify it? and How can we check which... (1 Reply)
Discussion started by: quanba
1 Replies
7. Solaris
After a memory upgrade all network interfaces are misconfigued. How do i resolve this issue. Below are some out puts.thanks.
ifconfig: plumb: SIOCLIFADDIF: eg000g0:2: no such interface
# ifconfig eg1000g0:2 plumb
ifconfig: plumb: SIOCLIFADDIF: eg1000g0:2: no such interface
# ifconfig... (2 Replies)
Discussion started by: andersonedouard
2 Replies
8. IP Networking
Hi experts,
I am not sure in which forum to submit this question. If this is not the correct place then please let me know where to submit this thread.
My requirement is to invoke windows batch scripts from linux shell script. Hence, I have installed openssh in Cygwin on the windows machine.... (2 Replies)
Discussion started by: ahmedwaseem2000
2 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I was wondering if someone may be able to help me with finding out the different *nix logon types.
The different logon types for a Successful Logon event type in Windows (4624) is well documented both on the M$ site and also on many tech related sites, listing the different logon types... (6 Replies)
Discussion started by: urhero
6 Replies
10. Cybersecurity
Hello,
We have mid level infrastructure of all on-premises servers. All windows servers are getting authenticated by Microsoft Active Directory Services, half Unix (Solaris+Linux) servers are getting authentication by NIS and other half by LDAP.
We have plans to migrate from NIS to LDAP, so... (2 Replies)
Discussion started by: solaris_1977
2 Replies
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