NIS and NFS and YP in Ubuntu Server 14.04

scottalanmiller

NIS is the "new" name for YP (Yellow Pages.) It was just a rename like in the 1990s, the two are the same system.

scottalanmiller

Are you sure that you mean to use NIS (insecure?) That is a terribly old system. I've not seen anyone consider using it since the early 2000s. It's very easy to use, but ancient. I last implemented it around 2006 and it was ancient then.

scottalanmiller

First you need to get NIS installed:

sudo apt-get install portmap nis

Lakshmana

I have to configure NIS and NFS for one MAster Server and other slave servers also.How to configure it?I have installed the portmap nis as mentioned above

scottalanmiller

@Lakshmana said:

I have to configure NIS and NFS for one MAster Server and other slave servers also.How to configure it?I have installed the portmap nis as mentioned above

Does this guide work to get you started?

http://www.server-world.info/en/note?os=Ubuntu_12.04&p=nis&f=2

Lakshmana

I have tried to configure by the above method yesterday,there are some errors came in the process which was present in that website.

For me some errors are coming in the process,I followed from the above website

Reid Cooper

Can you tell us what those errors are?

Lakshmana

sysv-rc-conf ypbind on

Line does not exists in my server.Why?

Lakshmana

now installed the above thing but the error i face after installation is given below

shiva@ubuntu:~$ sysv-rc-conf ypbind on
Can't create /var/lib/sysv-rc-conf : Permission denied at /usr/sbin/sysv-rc-conf line 454.

Lakshmana

I have followed the website given below but no use in configuration

http://www.server-world.info/en/note?os=Ubuntu_13.04&p=nis&f=2

scottalanmiller

@Lakshmana said:

now installed the above thing but the error i face after installation is given below

shiva@ubuntu:~$ sysv-rc-conf ypbind on
Can't create /var/lib/sysv-rc-conf : Permission denied at /usr/sbin/sysv-rc-conf line 454.

You forgot the "sudo" before that line.

Lakshmana

NOw NFS configured and tested but there is an issue in the NIS configuration only and the NIS server has issue given below

root@ubuntu:/var/yp# service ypbind start
start: Job failed to start

NIS client has issue as given below

root@client:~# ypdomainname
test
root@client:~# ypcat passwd
No such map passwd.byname. Reason: Can't bind to server which serves this domain
root@client:~# ypcat hosts
No such map hosts.byname. Reason: Can't bind to server which serves this domain

scottalanmiller

There is no need to test NIS functions if the NIS server hasn't started yet. If the service can't start, you know that it isn't going to work. This is like telling us that the car isn't steering well right after demonstrating that it hasn't started yet.

So we must start by figuring out why it isn't starting and fix that. When something doesn't work, since it throws no useful error messages, we need to start by looking at the logs to see what it is telling us.

Lakshmana

My NIS Client Configuration Step by step process is given below if any error please inform

nano /etc/yp.conf

  GNU nano 2.2.6             File: /etc/yp.conf                       Modified  

#
# yp.conf       Configuration file for the ypbind process. You can define
#               NIS servers manually here if they can't be found by
#               broadcasting on the local net (which is the default).
#
#               See the manual page of ypbind for the syntax of this file.
#
# IMPORTANT:    For the "ypserver", use IP addresses, or make sure that
#               the host is in /etc/hosts. This file is only interpreted
#               once, and if DNS isn't reachable yet the ypserver cannot
#               be resolved and ypbind won't ever bind to the server.

# ypserver ypserver.network.com
domain test.com server shiva.test.com

root@ubuntu:~# nano /etc/nsswitch.conf 

# /etc/nsswitch.conf
#
# Example configuration of GNU Name Service Switch functionality.
# If you have the `glibc-doc-reference' and `info' packages installed, try:
# `info libc "Name Service Switch"' for information about this file.

passwd:         compat nis
group:            compat nis
shadow:         compat nis

hosts:          files mdns4_minimal [NOTFOUND=return] dns nis
networks:       files

protocols:       db files
services:        db files
ethers:            db files
rpc:                 db files

root@ubuntu:~# nano /etc/pam.d/common-session

  GNU nano 2.2.6         File: /etc/pam.d/common-session                        

# since the modules above will each just jump around
session required                        pam_permit.so
# The pam_umask module will set the umask according to the system default in
# /etc/login.defs and user settings, solving the problem of different
# umask settings with different shells, display managers, remote sessions etc.
# See "man pam_umask".
session optional                        pam_umask.so
# and here are more per-package modules (the "Additional" block)
session required        pam_unix.so
session optional        pam_systemd.so
# end of pam-auth-update config
session optional        pam_mkhomedir.so skel=/etc/skel umask=077

root@ubuntu:~# reboot

oot@ubuntu:~# ypwhich
ypwhich: Can't communicate with ypbind
root@ubuntu:~# ypcat passwd
No such map passwd.byname. Reason: Can't bind to server which serves this domain
root@ubuntu:~# ypcat hosts
No such map hosts.byname. Reason: Can't bind to server which serves this domain
root@ubuntu:~#

Lakshmana

Client side output for digging domain name

shiva@ubuntu:~$ dig test.com any

; <<>> DiG 9.9.5-3ubuntu0.1-Ubuntu <<>> test.com any
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 16217
;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 2, ADDITIONAL: 3

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;test.com.			IN	ANY

;; ANSWER SECTION:
test.com.		7200	IN	SOA	ns65.worldnic.com. namehost.worldnic.com. 115070707 10800 3600 604800 3600
test.com.		7200	IN	TXT	"google-site-verification=kW9t2V_S7WjOX57zq0tP8Ae_WJhRwUcZoqpdEkvuXJk"
test.com.		7200	IN	MX	10 mx.spamexperts.com.
test.com.		7200	IN	MX	20 fallbackmx.spamexperts.eu.
test.com.		7200	IN	MX	30 lastmx.spamexperts.net.
test.com.		3600	IN	A	69.172.200.235
test.com.		7200	IN	NS	ns66.worldnic.com.
test.com.		7200	IN	NS	ns65.worldnic.com.

;; AUTHORITY SECTION:
test.com.		7200	IN	NS	ns66.worldnic.com.
test.com.		7200	IN	NS	ns65.worldnic.com.

;; ADDITIONAL SECTION:
ns65.worldnic.com.	171249	IN	A	207.204.40.133
ns66.worldnic.com.	171249	IN	A	207.204.21.133

;; Query time: 841 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Jul 16 18:50:33 IST 2015
;; MSG SIZE  rcvd: 396

shiva@ubuntu:~$

scottalanmiller

I edited your posts for readability.

scottalanmiller

You are getting way too deep when your errors are very shallow. Right now it looks like NIS isn't running yet:

oot@ubuntu:~# ypwhich
ypwhich: Can't communicate with ypbind
root@ubuntu:~# ypcat passwd
No such map passwd.byname. Reason: Can't bind to server which serves this domain

Before you are doing all of this.... just look and see if NIS is running. Just this command on your NIS server:

netstat -tulpn

Reid Cooper

Or query the NIS service and ask it if it is running.

Reid Cooper

Have firewall ports been opened for RPCBIND and whatever else is needed?

Lakshmana

How to open ports for the NIS and NFS in iptables?
I have followed the below to link configure for the NIS configurattion now.

https://help.ubuntu.com/community/SettingUpNISHowTo

But I was not able to open the ports I have given in the website

I have also installed the iptables-persistent in the ubuntu server but the default path to edit rules was not able to identify.

When I use the rules for the port I have opened means the error coming here is
Bad Argument"IP"