Experience sharing and questions for NIS migration from Solaris 8 to Linux Post: 302996891

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Operating Systems Solaris Experience sharing and questions for NIS migration from Solaris 8 to Linux Post 302996891 by bestard on Thursday 4th of May 2017 01:38:55 AM

05-04-2017

Registered User

Quote:

Originally Posted by MadeInGermany

The best setting for NIS is

Code:

passwd:     files nis
shadow:     files
group:      files nis

It first looks for local users in /etc/passwd; if not found it consults NIS.
On the NIS master, if you want it to work like a NIS client, you should put the NIS source files outside of /etc/ e.g. create a directory /etc/yp-maps/ for them and adapt the Makefile.

Could you please be more clear? That confused me a little.
As I know, /etc/passwd and /etc/shadow is not recommended to move to other places since there are many built-in libraries and applications running as root bound to these files. Is there any way to change default system settings toward other source files?

However, I still manage to do some tests for this idea.
I left /etc/passwd and /etc/shadow to where they are and just separated NIS users info to other source files located in /etc/yp, i.e., /etc/yp/passwd and /etc/yp/shadow for NIS service.

Then I adapted the following files.
1. /etc/pam.d/system-auth and /etc/pam.d/password-auth

Code:

password    sufficient    pam_unix.so shadow nis nullok try_first_pass use_authtok

2. /etc/nsswitch.conf

Code:

passwd:     files nis
shadow:     files nis
group:      files nis

#hosts:     db files nisplus nis dns
hosts:      files dns nis

3. adapted /var/yp/Makefile, redirect shadow and passwd sources to /etc/yp, and then re-make.

4. restart ypserv/yppasswdd/ypbind services

After that, I can successfully queried a NIS user info from database as below

Code:

# ypmatch testuser passwd
testuser:##testuser:10124:4000:19-Aug-2002:/nas/testuser:/bin/tcsh
# ypmatch testuser passwd.adjunct.byname
testuser:7abi0uUn./pOk:17290::::::

Unfortunately, I still can't login as a NIS user on master server.

Code:

# ssh testuser@mastest
testuser@mastest's password: 
Permission denied, please try again.

I have no idea what went wrong....

for more information,
1. /etc/default/nss

Code:

ADJUNCT_AS_SHADOW=TRUE

2. /etc/sysconfig/yppasswdd

Code:

# The passwd and shadow files are located under the specified
# directory path. rpc.yppasswdd will use these files, not /etc/passwd
# and /etc/shadow.
#ETCDIR=/etc

# This options tells rpc.yppasswdd to use a different source file
# instead of /etc/passwd
# You can't mix usage of this with ETCDIR
#PASSWDFILE=/etc/passwd
PASSWDFILE=/var/yp/passwd

# This  options  tells rpc.yppasswdd to use a different source file
# instead of /etc/passwd.
# You can't mix usage of this with ETCDIR
#SHADOWFILE=/etc/shadow
SHADOWFILE=/var/yp/passwd.adjunct

# Additional arguments passed to yppasswd
YPPASSWDD_ARGS="--port 1012"

bestard

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