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 (click on "Add" to add the details):
Address: 10.0.2.4
Netmask: 24
Gateway: 10.0.2.1
DNS Servers: 8.8.8.8
Then click on Apply
7. View the network interface
# ifconfig
eth1 Link encap:Ethernet HWaddr 08:00:27:5B:82:6E
inet addr:10.0.2.4 Bcast:10.0.2.255 Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fe5b:826e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:12 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:9201 (8.9 KiB) TX bytes:1775 (1.7 KiB)
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:65536 Metric:1
RX packets:282 errors:0 dropped:0 overruns:0 frame:0
TX packets:282 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:17588 (17.1 KiB) TX bytes:17588 (17.1 KiB)
There is only one network interface:
- 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.
8. Test if the network connection is working. Use Control-C to stop the ping.
# ping www.dbvisit.com PING dbvisit.com (67.222.54.241) 56(84) bytes of data. 64 bytes from 67-222-54-241.unifiedlayer.com (67.222.54.241): icmp_seq=1 ttl=47 time=190 ms 64 bytes from 67-222-54-241.unifiedlayer.com (67.222.54.241): icmp_seq=2 ttl=47 time=189 ms 64 bytes from 67-222-54-241.unifiedlayer.com (67.222.54.241): icmp_seq=3 ttl=47 time=192 ms 64 bytes from 67-222-54-241.unifiedlayer.com (67.222.54.241): icmp_seq=4 ttl=47 time=193 ms ^C
9. scp (secure copy) does not work because there is display output in ~oracle/.bashrc file. To fix this:
a. Edit .bashrc in the home directory of oracle
cd ~oracle
vi .bashrc
Put a # in front of the following line:
#cat /u01/oracle/Desktop/readme.txt
Save the .bashrc file and exit (:wq)
10. Setup the firewall rules (iptables) and open up the ports for SQL*Net (1521) and for Dbvisit Replicate (7901, 7902).
vi /etc/sysconfig/iptables
a. Add the following entries.
-A INPUT -m state --state NEW -m tcp -p tcp --dport 1521 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 7901 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 7902 -j ACCEPT
The whole file should look like.
# Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 1521 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 7901 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 7902 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT
b. Save and quit the file (:wq!).
11. Restart the firewall (iptables).
[root@source ~]# service iptables restart
12. The output is.
iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Flushing firewall rules: [ OK ] iptables: Unloading modules: [ OK ] iptables: Applying firewall rules: [ OK ]
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