Editing MDI DHCP Server Implementation

[[category:MDI]]


== '''MDI DHCP Server Implementation''': ==


OS Version RHEL 6.1 (x86_64)

ROOT Password : pipl?mdi161

To access DHCP server logged in on MDI mail server with public IP (credential is on login sheet):

 tetra@tetra004:~$ ssh root@14.141.218.163
 root@14.141.218.163's password: "Type password"

Then access DHCP server from mail server:

 [root@mailserver ~]# ssh root@192.168.1.10
 root@192.168.1.10's password: "Type password"

---------------------------------------------------------------------------
'''Set the hostname''' 

[root@mdidhcpserver dhcp]# vim /etc/sysconfig/network
---------------------------------------------------------------------------
 NETWORKING=yes
 HOSTNAME=mdidhcpserver
---------------------------------------------------------------------------

'''Set IP address'''

[root@mdidhcpserver dhcp]# vim /etc/sysconfig/network-scripts/ifcfg-eth0

 DEVICE=eth0
 HWADDR=ec:b1:d7:3c:10:07
 NM_CONTROLLED=no
 ONBOOT=yes
 IPADDR=192.168.1.10
 NETMASK=255.255.0.0
 GATEWAY=192.168.12.25
 TYPE=Ethernet
 BOOTPROTO=none
 IPV6INIT=no
 USERCTL=no

---------------------------------------------------------------------------

'''Restart network service:'''

 [root@mdidhcpserver dhcp]# /etc/init.d/network restart
 [root@mdidhcpserver dhcp]# chkconfig network on
 [root@mdidhcpserver dhcp]# service NetworkManager stop
 [root@mdidhcpserver dhcp]# chkconfig NetworkManager off

'''Flush the firewall rules:'''

 [root@mdidhcpserver dhcp]# iptables -F
 [root@mdidhcpserver dhcp]# service iptables stop
 [root@mdidhcpserver dhcp]# chkconfig iptables off
---------------------------------------------------------------------------

'''Disable the selinux:'''

 [root@mdidhcpserver dhcp]# setenforce 0


'''Disable selinux from file:'''

[root@mdidhcpserver dhcp]# vim /etc/sysconfig/selinux 

---------------------------------------------------------------------------

  #This file controls the state of SELinux on the system.
  #SELINUX= can take one of these three values:
  #enforcing - SELinux security policy is enforced.
  #permissive - SELinux prints warnings instead of enforcing.
  #disabled - No SELinux policy is loaded.
 SELINUX=disabled
  #SELINUXTYPE= can take one of these two values:
  #targeted - Targeted processes are protected,
  #mls - Multi Level Security protection.
 SELINUXTYPE=targeted 

---------------------------------------------------------------------------
'''Install DHCP package'''

 rpm -ivh dhcp-4.1.1-19.P1.el6.x86_64.rpm


== '''Configuring DHCP Server''' ==

Edit configuration file and make below entries

[root@mdidhcpserver dhcp]# vim /etc/dhcp/dhcpd.conf
 
 # DHCP Server Configuration file.
 #   see /usr/share/doc/dhcp*/dhcpd.conf.sample
 #   see 'man 5 dhcpd.conf'
 
 log-facility local5;
 authoritative;
 subnet 192.168.0.0 netmask 255.255.0.0 {
  range 192.168.13.1 192.168.24.254;
  option domain-name-servers 192.168.10.83, 192.168.12.25;
  option domain-name "mdi.ac.in";
  option routers 192.168.12.25;
  option broadcast-address 192.168.15.255;
  default-lease-time 864000;
  max-lease-time 1728000;
 }
 
 #Fixed address
 host DESKTOP-NH2KCIO { hardware ethernet B6:86:87:B2:FD:EC ; fixed-address 192.168.17.228;}
 host DESKTOP-NH3KCIO { hardware ethernet B0:5A:DA:D6:9C:7D ; fixed-address 192.168.13.202;}
 host DESKTOP-NH1KCIO {hardware ethernet 44:8a:5b:72:53:b2 ; fixed-address 192.168.12.215;}
 host Tarun_mobile {hardware ethernet 98:0c:a5:18:bc:bd ;}
 deny unknown-clients;
 
 # Unknown clients get this pool.
 subnet 169.254.0.0 netmask 255.255.0.0 {
  option domain-name-servers ns1.example.com, ns2.example.com;
  max-lease-time 300;
  range 169.254.0.1 169.254.255.254;
  allow unknown-clients;
 }
 include "/mac_address/NMP28_MAC_Responses.txt";
 include "/mac_address/PGPM_2014.txt";
 include "/mac_address/PGPM_2015.txt";
 include "/mac_address/PGPIM_2014.txt";
 include "/mac_address/PGPIM_2015.txt";
 include "/mac_address/sap_2016.txt";
 include "/mac_address/fpm_2015.txt";
 include "/mac_address/Vendor.txt";
 include "/mac_address/PGHR_2015.txt";
 include "/mac_address/PGHR_2014.txt";
 include "/mac_address/Faculty_Staff_Hostel_LH_LAB.txt";
 include "/mac_address/PTPGPM.txt";


---------------------------------------------------------------------------
'''Assign the network interface:'''

[root@mdidhcpserver ~]# vim /etc/sysconfig/dhcpd

Make below entry:
 DHCPDARGS=eth0

---------------------------------------------------------------------------
'''After configuration Restart DHCP Service'''

 [root@mdidhcpserver ~]# /etc/init.d/dhcpd restart
 [root@mdidhcpserver ~]# chkconfig dhcpd on

'''Disable dhcpd6 service'''

 [root@mdidhcpserver dhcp]# /etc/init.d/dhcpd6 stop
 [root@mdidhcpserver dhcp]# chkconfig dhcpd6 off
---------------------------------------------------------------------------
'''Enabling log'''

[root@mdidhcpserver ~]# vim /etc/rsyslog.conf

Make below entry in rsyslog.conf file

 # Save DHCP log
 local5.*                                                    /var/log/dhcpd.log
---------------------------------------------------------------------------
'''Restart rsyslog service'''

 [root@mdidhcpserver ~]# /etc/init.d/rsyslog status
 rsyslogd (pid  1349) is running...
 [root@mdidhcpserver ~]# /etc/init.d/rsyslog restart


== '''Binding new MAC addresses.''' ==


 [root@mdidhcpserver ~]# cd /mac_address
 [root@mdidhcpserver mac_address]# ls -l
 total 200
 -rw-r--r-- 1 root root 42211 Mar 16 14:06 Faculty_Staff_Hostel_LH_LAB.txt
 -rw-r--r-- 1 root root  3236 Mar 16 12:24 fpm_2015.txt
 -rw-r--r-- 1 root root 17422 Mar 16 11:40 NMP28_MAC_Responses.txt
 -rw-r--r-- 1 root root  6483 Mar  9 14:27 PGHR_2014.txt
 -rw-r--r-- 1 root root  9809 Mar  9 14:21 PGHR_2015.txt
 -rw-r--r-- 1 root root   867 Mar  9 11:08 PGPIM_2014.txt
 -rw-r--r-- 1 root root  1501 Mar  9 11:02 PGPIM_2015.txt
 -rw-r--r-- 1 root root 32881 Mar  8 15:56 PGPM_2014.txt
 -rw-r--r-- 1 root root 50847 Mar 16 13:45 PGPM_2015.txt
 -rw-r--r-- 1 root root  4616 Mar 16 13:22 PTPGPM.txt
 -rw-r--r-- 1 root root   534 Mar  9 13:44 sap_2016.txt
 -rw-r--r-- 1 root root   122 Mar 12 17:31 Vendor.txt

For example if client requested to add MAC address in Faculty and Staff department
then open below file.

 [root@mdidhcpserver mac_address]# vim Faculty_Staff_Hostel_LH_LAB.txt
 
Make entry as below given formate.

 host 110_Kamal_Kishore-1 {hardware ethernet 00:16:E6:F6:E8:B1 ;}
 host 111_Satya_Prakash-1 {hardware ethernet 00:16:E6:F6:BC:B7 ;}
 host 111_Satya_Prakash-2 {hardware ethernet 14:f6:5a:ff:68:19 ;}
 host 114_Ashok_Mishra-1 {hardware ethernet 00:16:E6:F6:BC:6E ;}
 host 115_Tika_Bahadur-1 {hardware ethernet 00:01:6c:9d:33:d0 ;}
 host 115_Tika_Bahadur-2 {hardware ethernet 78:45:C4:C3:DD:7C ;}
 host 115_Tika_Bahadur-3 {hardware ethernet 9C:2A:70:C5:F2:F5 ;}
 host 132_Charanjeet-4 {hardware ethernet 5C:F8:A1:97:11:D1 ;}
 host 132_Charanjeet-5 {hardware ethernet 08:bd:45:66:03:3e ;}
 host 135_Des_Raj-1 {hardware ethernet 8C:DC:D4:46:AF:9E ;}
 host 136_Ashish_Kumar_Bose-1 {hardware ethernet 00:16:E6:21:4D:32 ;}
 host 142_Lekh_Bahadur-1 {hardware ethernet 00:01:6C:9C:B1:12 ;}
 host 143_R_P_Paswan-1 {hardware ethernet 00:01:6C:9C:A4:A1 ;}

'''Note:''' Duplicate entry will not be accepted you will get error while restarting dhcpd service. 

'''Save file and restart dhcpd service:'''
 [root@mdidhcpserver ~]# /etc/init.d/dhcpd restart
  Shutting down dhcpd:                                       [  OK  ]
  Starting dhcpd:                                            [  OK  ]