Nis

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NIS SERVER

The two common authentication services are the Network Information Service (NIS) and the Lightweight directory Access Protocol (LDAP). Both NIS and LDAP allows to manage all users & computer centrally

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How Local Authentication works ?

Linux Linux Client Client

Linux Linux Client Client user1 user1

user2 user2

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Solution for Local Authentication

NIS NIS Server Server 192.168.0.253 192.168.0.253

Linux Linux Client Client

Linux Linux Client Client user1 user1

user2 user2

user2 user2

user1 user1

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How NIS works ?

NIS NIS Server Server 192.168.0.253 192.168.0.253

Linux Linux Client Client

user1 user1 user2 user2

Linux Linux Client Client

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Requirements Packages ypserv-2.13.5.i386.rpm ypbind-1.17.2-3.i386.rpm yp-tools-2.8-7.i386.rpm Port Numbers NIS uses random port numbers [root@comp1 ~]# rpcinfo -p Configuration File /var/yp/Makefile Service ypserv yppasswdd Daemons ypserv yppasswdd

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NIS Configuration

user1 user1 user2 user2

NIS NIS ++ NFS NFS Server Server 192.168.0.253 192.168.0.253

/home /home

Linux Linux Client Client

Linux Linux Client Client

ZOOM.COM ZOOM.COM

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Configuring NIS Server

Install Installthe thepackage packageby byusing usingone oneof ofthe theinstallation installationmethods methods [root@comp1~]# mount 192.168.0.250:/var/ftp/pub/RedHat/RPMS/ [root@comp1~]# mount 192.168.0.250:/var/ftp/pub/RedHat/RPMS/ /mnt /mnt [root@comp1 ~]# cd /mnt [root@comp1 ~]# cd /mnt [root@comp1 [root@comp1~]# ~]#rpm rpm -ivh -ivh yp* yp* --force --force --aid --aid

Assigning Assigningan anNIS NISdomain domain [root@comp1~]# [root@comp1~]#nisdomainname nisdomainname zoom.com zoom.com

Assigning Assigningan anNIS NISdomain domain--Permenant Permenant [root@comp1~]# vi /etc/sysconfig/network [root@comp1~]# vi /etc/sysconfig/network

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/etc/sysconfig/network

Add Addbelow belowline line NISDOMAIN=ZOOM.COM NISDOMAIN=ZOOM.COM

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NIS Server

To Torestart restartthe theNIS NISservices services [root@comp1 ~]# service portmap restart [root@comp1 ~]# service portmap restart [root@comp1 [root@comp1~]# ~]#service serviceyppasswdd yppasswdd restart restart

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Configuring NIS Server

Open Openconfiguration configurationfor for editing editing [root@comp1~]# vi /var/yp/Makefile [root@comp1~]# vi /var/yp/Makefile

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/var/yp/Makefile

To Tochange changethe thebelow belowoption option NOPUSH=TRUE NOPUSH=TRUE all all::passwd passwdgroup grouphosts hosts\\

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NIS Server

To Torestart restartthe theNIS NISservices services [root@comp1 ~]# service ypserv restart [root@comp1 ~]# service ypserv restart

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NIS Server

To Tobuild build database databaseof ofusers users& & groups groups [root@comp1 ~]# /usr/lib/yp/ypinit -m [root@comp1 ~]# /usr/lib/yp/ypinit -m

To Tocreate createusers users [root@comp1 [root@comp1~]#useradd ~]#useradd user1 user1 [root@comp1 [root@comp1~]#useradd ~]#useradd user2 user2 To Toupdate updatedatabase databasewith with new newusers users [root@comp1 [root@comp1~]# ~]#useradd useradduser3 user3 [root@comp1 [root@comp1~]# ~]#useradd useradduser4 user4 [root@comp1 ~]# cd /var/yp [root@comp1 ~]# cd /var/yp [root@comp1 [root@comp1~]# ~]# make make

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Requirements Packages portmap-4.0-63.i386.rpm nfs-utils-1.0.6-46.i386.rpm Port Numbers 2049 Nfsd 111 Portmap Configuration File /etc/exports Service portmap nfs Daemons nfsd mountd statd lockd

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Configuring NFS Server

Install Installthe thepackage packageby byusing usingone oneof ofthe theinstallation installationmethods methods [root@comp1~]# mount 192.168.0.250:/var/ftp/pub/RedHat/RPMS/ [root@comp1~]# mount 192.168.0.250:/var/ftp/pub/RedHat/RPMS/ /mnt /mnt [root@comp1 ~]# cd /mnt [root@comp1 ~]# cd /mnt [root@comp1 [root@comp1~]# ~]#rpm rpm -ivh -ivh nfs* nfs* --force --force --aid --aid

Open Openconfiguration configurationfor forediting editing [root@comp1~]# vi /etc/exports [root@comp1~]# vi /etc/exports

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/etc/exports

/home /home

To Toadd addthe thebelow below 192.168.0.0/255.255.255.0(rw,sync) 192.168.0.0/255.255.255.0(rw,sync)

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NFS Server

To Torestart restartthe theNFS NFSservices services [root@comp1 ~]# service nfs restart [root@comp1 ~]# service nfs restart

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Configuring Client

Install Installthe thepackage packageby byusing usingone oneof ofthe theinstallation installationmethods methods [root@comp1~]# mount 192.168.0.250:/var/ftp/pub/RedHat/RPMS/ [root@comp1~]# mount 192.168.0.250:/var/ftp/pub/RedHat/RPMS/ /mnt /mnt [root@comp1 ~]# cd /mnt [root@comp1 ~]# cd /mnt [root@comp1 [root@comp1~]# ~]#rpm rpm -ivh -ivh ypbind* ypbind*yp-tools* yp-tools* --force --force --aid --aid

Assigning Assigningan anNIS NISdomain domain [root@comp1~]# [root@comp1~]#nisdomainname nisdomainname zoom.com zoom.com

Assigning Assigningan anNIS NISdomain domain--Permenant Permenant [root@comp1~]# vi /etc/sysconfig/network [root@comp1~]# vi /etc/sysconfig/network

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/etc/sysconfig/network

Add Addbelow belowline line NISDOMAIN=ZOOM.COM NISDOMAIN=ZOOM.COM

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Configuring Client

Connecting Connectingto toserver serverfor forauthentication authentication [root@comp1 ~]# authconfig [root@comp1 ~]# authconfig

Mounting Mountinghome homedirectories directoriesof ofthe theusers users [root@comp1 ~]# mount 192.168.0.253:/home [root@comp1 ~]# mount 192.168.0.253:/home /home /home

Checking Checkingfor forconnectivity connectivity [root@comp1 ~]# ypwhich [root@comp1 ~]# ypwhich

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