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Full Discussion: User authentication failed while log in Solaris 8 client on Linux NIS server.
Operating Systems Solaris User authentication failed while log in Solaris 8 client on Linux NIS server. Post 302995818 by bestard on Thursday 13th of April 2017 06:18:44 AM
Old 04-13-2017
User authentication failed while log in Solaris 8 client on Linux NIS server.
Based on the NIS migration tests I did and another question I posted earlier on.
Solaris 8 MD5 encryption support

I tried to downgrade NIS linux encryption to DES to support solaris connection.
So I modified /etc/pam.d/system-auth as below,

Code:
password    requisite     pam_cracklib.so try_first_pass retry=3 type=
password    sufficient    pam_unix.so shadow nullok try_first_pass use_authtok
password    required      pam_deny.so

and then reset the user's password.
I can login the user's account from the linux client with no issue, but I just can't login from the solaris client using both telnet and ssh.

I checked the log message, and it kept showing the following messages.
Code:
Apr 13 17:05:05 lay8 sshd[21086]: [ID 800047 auth.info] Invalid user systest from 172.26.80.46
Apr 13 17:05:05 lay8 sshd[21086]: [ID 800047 auth.info] input_userauth_request: invalid user systest [preauth]
Apr 13 17:05:07 lay8 sshd[21086]: [ID 800047 auth.error] error: Could not get shadow information for NOUSER
Apr 13 17:05:07 lay8 sshd[21086]: [ID 800047 auth.info] Failed password for invalid user systest from 172.26.80.46 port 48485 ssh2
Apr 13 17:05:11 lay8 sshd[21086]: [ID 800047 auth.info] Connection closed by 172.26.80.46 [preauth]

I just can't figure it out. Did I miss something?
For more information,

Code:
# passwd -S systest
systest PS 2017-04-13 0 99999 7 -1 (Password set, DES crypt.)

/etc/ypserv.conf
Code:
# xfr requests are only allowed from ports < 1024
xfr_check_port: yes

# The following, when uncommented,  will give you shadow like passwords.
# Note that it will not work if you have slave NIS servers in your
# network that do not run the same server as you.

# Host                     : Domain  : Map              : Security 
#
# *                        : *       : passwd.byname    : port 
# *                        : *       : passwd.byuid     : port

# Not everybody should see the shadow passwords, not secure, since
# under MSDOG everbody is root and can access ports < 1024 !!!
*                          : *       : shadow.byname    : port
*                          : *       : passwd.adjunct.byname : port
172.26.80.0/255.255.248.0  : * : * : none
*                          : * : * : deny

Thanks.
 

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LEARN ABOUT BSD

niserror

niserror(1)							   User Commands						       niserror(1)

NAME

       niserror - display NIS+ error messages

SYNOPSIS

       niserror error-num

DESCRIPTION

       niserror  prints  the   NIS+  error associated with status value error-num on the standard output. It is used by shell scripts to translate
       NIS+ error numbers that are returned into text messages.

EXAMPLES

       Example 1: Using niserror

       The following example prints the error associated with the error number 20:

       example% niserror 20
       Not Found, no such name

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWnisu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       nis+(1), nis_error(3NSL), attributes(5)

NOTES

       NIS+ might not be supported in future releases of the SolarisTM Operating Environment. Tools to aid the migration from  NIS+  to  LDAP  are
       available in the Solaris 9 operating environment. For more information, visit http://www.sun.com/directory/nisplus/transition.html.

SunOS 5.10							    10 Dec 2001 						       niserror(1)
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