Have to click "enter" key twice to successfully login
Hi Guys,
When using plink ( plink -ssh $IP) to connect to an AIX box, the password is correct, but always after input the password and click enter I got "access denied", then I am promted for password again, this time no matter what password I give, correct or bad, after I re-click enter, as long as the password I specified at the first time I will success authenticate to the system.
If the password I specified at the first password input prompt is bad, from the /etc/security/failedlogin log, I noticed that AIX actually will not log the failed authentication request when I click the first "enter" but until I give the second "enter".
this problem only happen to plink and AIX, other ssh client works well on AIX, and plink also works well with other kind of Unix, like HP-Unix and sco.
Can anyone here help me out? Thanks very much in advance!
Ken
---------- Post updated at 11:53 PM ---------- Previous update was at 11:41 PM ----------
Code:
e:\tmp>plink -ssh 128.17.10.90
login as:deploy
deploy@128.17.10.90`s password:
Access denied -> I always got access denied
deploy@128.17.10.90`s password:
Last login:... -> I could login if the password specified on the first try is correct
*****************************
*
* welcome to AIX verion 6.1!
*
**************************************************
xxx:home/deploy$
Moderator's Comments:
edit by bakunin: added CODE-tags. Please use them yourself from now on. Thank you.
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Discussion started by: ilovedoritos
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LEARN ABOUT ULTRIX
su
su(1) General Commands Manual su(1)Name
su - substitute a user ID
Syntax
su [username]
su - [username]
su -f [username]
Description
The command requests the password of the specified username. If the correct password is given, changes to that username without changing
the current directory. The user environment is unchanged except for HOME and SHELL which are taken from the password file entry for user-
name. The shell that is run is also taken from the password file entry for username. The new user ID stays in force until the shell
exits.
If no username is specified, `root' is assumed. To remind the superuser of his responsibilities, the shell substitutes `#' for its usual
prompt.
Options-f Prevents from executing the .cshrc file, making start up faster.
- Simulates a full login.
Diagnostics
Sorry
An invalid password was supplied for the specified username.
Unknown login: username
The specified username was not found in the passwd database.
No directory
The home directory for the username is not accessible at this time (only with ``-'' argument).
No shell
The shell specified in the passwd database entry for username could not be executed.
Kerberos initialization failure
Consult your system administrator.
If enhanced security features are enabled the following error messages are also possible:
Requires secure terminal
Attempt to su to UID 0 on a line that is not marked secure in
User's password has expired
Access is denied because the password for username is expired.
This account is disabled
Access is denied because the auth entry corresponding to username is marked disabled.
Files
Log file of anyone who became
root, with a date mark.
See Alsocsh(1), sh(1), passwd(5yp), environ(7), edauth(8)
Security Guide for Administrators
Security Guide for Users
su(1)
10-11-2013
