How to configure network using Network Configuration Tool?

51.How to configure network using Network Configuration Tool?
Ans.
1. Network Configuration Tool can be accessed by using the application menu from the Gnome desktop.

2. To start the network configuration tool in enterprise Linux choose Applicationssystem-settingsNetwork.

3. The main network configuration tool window has 5 tabbed pages and opens to the devices by default.

4. Device:
This tab shows the network devices that are installed and configured on your PC, network devices are associated with actual physical hardware in PC.

5. Hardware:
This tab shows the actual physical hardware installed in your PC.

6. IPSec:
This tab is where we can configure IPSec tunnels used for secure communications.

7. DNS:
This tab shows the system hostname and name servers used for DNS lookup can be configured in this tab.

8. Hosts:
This tab shows the PS hostname to static IP address mapping.

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Explain process of setting up a NIC (Network interface card).

44.Explain process of setting up a NIC (Network interface card). Ans. 1. Network interface card (NIC) can be set-up by configuring the network card and internal network. 2. Before configuring network card we must check loopback (IP address 127.0.0.1) is working. 3. Even if the compute is not connected to outside network internet network configuration is required for some applications. This address is known as loopback device, and its IP address is 127.0.0.1 4. To check loopback device is configured or not, we use ‘ifconfig’ command it shows a device called ‘lo’ with the address 127.0.0.1, if this device and address is not shown there then loopback is not configured. 5. To configure it we can use command ifconfig lo 127.0.0.1 after that we need to use the ‘route’ command to give system a little more information about this interface for this ‘route add –net 127.0.0.0’ command is used, after this loopback is setup. 6. To configure a network card we will use ifconfig co...

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Explain how to configure DHCP client?

50.Explain how to configure DHCP client? Ans. 1. Before configuring DHCP, NIC should be configured properly and recognized by the system. 2. After that it’s easy to command system to use DHCP to obtain its IP information. 3. Configuring DHCP client involves following steps : a. Open the /etc/sysconfig/networkscripts/ifcfg-eth0 file. b. Find the line bootproto=static c. Change the static to dhcp. d. Save changes. e. Restart the network by issuing command ‘service network restart’, after that system will receive its IP information from the DHCP server.

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