Disable Network Manager Oracle Linux 6


(Optional Step) This step is more related to issues when using Network Manager and VMware then issues with Network Manager on Oracle Linux. For a local test machine to test server software the NetworkManager provides little to no value. For my purposes I will disable it. Feel free to play with this feature and your network to see if it provides you value on your servers.
Video Demo

Replace the following keys with the correct

value for your network

Example of 192.* Network
<<FQHOSTNAME>>  oradb01.snapdedo.com
<<HOSTNAME>>       oradb01
<<IPADDR>>              192.168.0.240
<<GATEWAY>>         192.168.0.1
<<NETMASK>>          255.255.255.0
<<NETWORK>>         192.168.0.0
<<BROADCAST>>     192.168.0.255

Example of 172.* Network
<<FQHOSTNAME>>  oradb01.snapdedo.com
<<HOSTNAME>>       oradb01
<<IPADDR>>              172.1.1.240
<<GATEWAY>>         172.1.1.1
<<NETMASK>>          255.255.255.0
<<NETWORK>>         172.1.1.0
<<BROADCAST>>     172.1.1.255

Example of 10.* Network
<<FQHOSTNAME>>  oradb01.snapdedo.com
<<HOSTNAME>>       oradb01
<<IPADDR>>              10.7.1.240
<<GATEWAY>>         10.7.1.1
<<NETMASK>>          255.255.255.0
<<NETWORK>>         10.7.1.0
<<BROADCAST>>     10.7.1.255

Steps
Check the current status of the Network Manager.

chkconfig --list | grep NetworkManager
Disable the Network Manager, so it will not restart at next boot.
chkconfig NetworkManager off
Verify Network Manager is disabled
chkconfig –-list | grep NetworkManager
chkconfig
Edit the network files to apply a static address. Most home routers will easily allow you to define static ips and I will later update with a short tutorial on setting this up. On almost all Oracle installs you will want a static ip if at all possible.
vi /etc/sysconfig/network
** Remove all existing lines and replace with the following
NETWORKING=yes
HOSTNAME=<<FQHOSTNAME>>
GATEWAY=<<GATEWAY>>
network
Edit you Ethernet configuration file. * If using VMware Server, see my note on copying base system to make multiple servers on VMware requires network reset.

vi /etc/sysconfig/network-scripts/ifcfg-eth0
** Remove all existing lines and replace with the following
DEVICE=eth0
BOOTPROTO=static
BROADCAST <<BROADCAST>>
IPADDR=<<IPADDR>>
NETMASK=<<NETMASK>>
NETWORK=<<NETWORK>>
ONBOOT=yes
TYPE=Ethernet
eth0

Edit you hosts configuration file
vi /etc/hosts
** Add the following lines
<<IPADDR>> <<FQHOSTNAME>> <<HOSTNAME>>
hosts
Reboot
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