# Network Administration Tool Manual

## Introduction

The Network Administration Tool allows you to specify the way your system connects to other computers and to the Internet.

## Getting started

You can start Network Administration Tool in the following ways:

System menu

- Choose Administration Networking.

Command line

- Execute the following command: `network-admin`

When you start Network Administration Tool, you will be prompted for the administrator password. This is necessary because the changes done with this tool will affect the whole system.

After entering the administrator password, the following window is displayed.

### Network Administration Tool main window

Shows Network Administration Tool main window.

The Network Administration Tool main window contains four tabbed sections:

Connections

- Shows all network interfaces. It also allows you to modify their settings.

General

- Allows you to modify your system host name and domain name.

DNS

- Contains two sections, the DNS servers are what your computer use for resolving the IP addresses from the domain names. The search domains are the default domains in which your system will search any host when no domain is specified.

Hosts

- Shows the list of aliases for accessing other computers.

## Usage

### To modify connection settings

In the Connections section, select the interface you want to modify and press the Properties button. Depending on the interface type you will be able to modify different data.

Ethernet and IRLAN interfaces

- You can modify the way the interface is configured (DHCP or manually). If the interface is configured manually, you can also modify the interface IP address, netmask and gateway.

Wireless interfaces

- You can modify the way the interface is configured (DHCP or manually). If the interface is configured manually, you can also modify the interface IP address, netmask and gateway. You can also modify the network name (ESSID) for this interface.

Parallel line interfaces

- You can modify the interface IP address, as well as the remote IP address.

PPP/Modem interfaces

- You can modify the modem device, whether you want it to dial using tones or pulses, the modem volume, the phone number, the username and password that your ISP provided and other advanced settings for PPP.

### To activate or deactivate an interface

In the Connections section, enable or disable the checkbox beside the interface.

### To change your host name and domain name

In the General section, change the hostname or domain name text boxes.

### To add a new domain name server

In the DNS Servers section, click on the Add button and fill in the new list row with the new domain name server.

### To delete a domain name server

In the DNS Servers section, select a DNS IP address from the list and click on the Delete button.

### To add a new search domain

In the Search Domains section, click on the Add button and fill in the new list row with the new search domain.

### To delete a search domain

In the Search Domains section, select a search domain from the list and click on the Delete button.

### To add a new host alias

In the Hosts section, click on the Add button and type an IP address and the aliases to which it will point in the window that pops up.

### To modify a host alias

In the Hosts section, select an alias, click on the Properties button from the list and modify the alias settings in the window that pops up.

### To delete a host alias

In the Hosts section, select an alias from the list and click on the Delete button.

### To save your current network configuration as a "Location"

Click on the Add button besides the Locations menu and specify the location name in the window that pops up.

### To delete a location

Click on the Remove button besides the Locations menu. The selected profile will be deleted.

### To switch to a location

Select one location from the Locations menu. All the configuration will be switched automatically to the chosen location.