05 - Configure the first VM network

Log onto the VM through the VirtualBox console which will be shown when the VM has started.

The username is root and the password is oracle

1. When logged onto the desktop, right click and click on "Open Terminal" to bring up the terminal.

2. In the terminal edit /etc/sysconfig/network

[root@localhost ~]# vi /etc/sysconfig/network

and change to:

NETWORKING=yes
HOSTNAME=source

3. Edit /etc/hosts and add the following two hosts entries

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1		localhost
::1				localhost
10.0.2.4       source-int source dbv01
10.0.2.5       target-int target dbv02

4. Right click on the Network Manager icon on the top right hand corner, and click on "Edit Connections..."

5. Click on Auto eth1 and click on "Edit..."

6. Select the "IPv4 Settings" tab. Set the Method to "Manual" and add following details:

Address: 10.0.2.4

Netmask: 24

Gateway: 10.0.2.1

DNS Servers: 8.8.8.8

Then click on Apply

6. View the network interface

# ifconfig
eth0      Link encap:Ethernet  HWaddr 08:00:27:18:B5:AF  
          inet addr:10.0.2.4  Bcast:10.0.2.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe18:b5af/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:241 errors:0 dropped:0 overruns:0 frame:0
          TX packets:330 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:21781 (21.2 KiB)  TX bytes:47325 (46.2 KiB)
          Interrupt:10 Base address:0xd020 
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:3670 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3670 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4306552 (4.1 MiB)  TX bytes:4306552 (4.1 MiB)

There is only one network interfaces:

eth1 which is a fixed IP address. This is used to connect between the source and target servers and also to the Internet. This IP is 10.0.2.4.

7. scp (secure copy) does not work because there is display output in ~oracle/.bashrc and ~oracle/.bash_profile. To fix this:

a. Edit .bashrc in the home directory of oracle

cd ~oracle

vi .bashrc

Put a # in front of the following lines:

#cat ~/Desktop/README.txt


#/sbin/ifconfig | grep "inet addr"

b. Edit .bash_profile in the home directory of oracle

cd ~oracle

vi .bash_profile

Put a # in front of the following lines:

#echo IP Address is:

#/sbin/ifconfig | grep "inet addr"

05 - Configure the first VM network

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