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

  }}}