ProCKSI

= User Management =

Yellow Pages

The ''Network Information Service'' (NIS), also called ''Yellow Pages'' (YP) provides a single point for the entire cluster administration.

=== Configuration of the Master Node === * Set NIS domain name on the master node. Enter at the command line: {{{ # domainname procksi.nis
}}}

• Add NIS domain name to ''/etc/sysconfig/network'': {{{
  NISDOMAIN = procksi.nis
  }}}

• Modify ''/etc/yp.conf'': {{{
  ypserver 127.0.0.1
  }}}

• Enable NIS server at boot time. Enter at the command line: {{{ # /sbin/chkconfig --add ypserv # /sbin/chkconfig --add yppasswdd # /sbin/chkconfig ypserv on # /sbin/chkconfig yppasswdd on
  }}}

• Start the NIS server. Enter at the command line: {{{ # /sbin/service ypserv start # /sbin/service yppasswdd start
  }}}

• Check that the NIS server is listening. Enter at the command line: {{{ # rpcinfo -p localhost |grep yp
  100009 1 udp 906 yppasswdd
  100004 2 udp 938 ypserv
  100004 1 udp 938 ypserv
  100004 2 tcp 941 ypserv
  100004 1 tcp 941 ypserv
  }}}

• Initialise the NIS databases. Enter at the command line: {{{
  /usr/lib64/yp/ypinit -m
  }}}

• Enable NIS clients at boot time. Enter at the command line: {{{ # /sbin/chkconfig --add ypbind # /sbin/chkconfig --add ypxfrd # /sbin/chkconfig ypbind on # /sbin/chkconfig ypxfrd on
  }}}

=== Configuration of the Slave Nodes ===

• Add NIS domain name to ''/etc/sysconfig/network'': {{{
  NISDOMAIN = procksi.nis
  }}}

• Modify ''/etc/yp.conf'': {{{
  domain procksi.nis server master01.procksi.local
  }}}

• Enable NIS server at boot time. Enter at the command line: {{{
  /sbin/chkconfig --add ypbind
  /sbin/chkconfig ypbind on
  }}}

• Start the NIS server. Enter at the command line: {{{
  /sbin/service ypbind start
  }}}

• Check that the NIS binding is listening. Enter at the command line: {{{ # rpcinfo -p localhost |grep yp
  100007 2 udp 856 ypbind
  100007 1 udp 856 ypbind
  100007 2 tcp 859 ypbind
  100007 1 tcp 859 ypbind
  }}}

Add new Users
Make the following changes on the master node: * Add new users into ''/etc/passwd'': {{{
procksi:x:510:510:ProCKSI-Server:/home/procksi:/bin/bash
dxb:x:520:Daniel Barthel:/home/dxb:/bin/bash
}}} * Add an entry for the new users into ''/etc/shadow'': {{{
procksi:[Add Encrypted Password]:13483:0:99999:7:::
dxb:[Add Encrypted Password]:13755:0:99999:7:::
}}} * Add a new group into ''/etc/group'', and add all users who should have access (e.g. ''dxb''): {{{
procksi:x:510:dxb
}}}
The members for group procksi are now: ''procksi'', ''dxb'' * Generate home directory for ''procksi'' at ''/home/procksi''. Enter at the command line of the master node: {{{
mkdir /home/procksi
chown procksi.procksi /home/procksi
chmod 770 /home/procksi
}}} * Whenever users, groups, passwords are modified, update the NIS configuration. Enter at the command line: {{{ # cd /var/yp # make
}}}