SUSE Linux Enterprise Server 10 Fundamentals

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SUSE Linux Enterprise Server 10 Fundamentals (Novell 3071) (3 days)

This course is designed for beginners with the Linux operating system. Attendees are required to have only basic computer skills on any operating system. Knowledge of a desktop operating system is sufficient. Based on SUSE Linux Enterprise Server 10, you will gain familiarity with the core elements of Linux system administration, including how to install and configure SUSE Linux Enterprise Server 10, as well as how to configure networking, backup, printing, remote access, and how to perform various other common tasks that are part of day-to-day Linux administration.

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To select a menu item, press Enter. You can often press Alt and the highlighted letter to access an item directly. Except for the controls and the appearance, the graphical mode and the text mode of YaST are identical. You can list the available YaST modules with the command yast -l or yast --list.

To start an individual module, specify its name. You can enter the software module name with the command yast or yast2, as in the following:. To install a software package you can also enter yast -i package. The package is installed directly without any dialogs. From here you can select a category on the left such as Software or System and a module on the right such as Online Update to configure and manage your system.

Understand the Role of SuSEconfig You can consider YaST as a front end to various other programs, such as a front end to RPM RPM Package Manager software management, a front end to user management, or a front end to various configuration files of different services like a mail or web server.

SUSE LINUX Enterprise Server 10 Fundamentals (Novell )

Sometimes YaST writes the configuration changes you make directly into the final configuration file. This is where the program SuSEconfig becomes important.

Some of these variables are used directly such as in some start scripts. Other variables are used to modify other files. However, you might also need to run SuSEconfig. User Controlled with NetworkManager. Use a desktop applet that manages the connections for all network interfaces. Traditional Method with ifup. The traditional method uses the command ifup. We recommend you to use this setup method. Select the card you want to configure; then select Edit. Usually the cards are autodetected by YaST, and the correct kernel module is used. Select Add. A Manual Card Setup dialog appears: Figure From this dialog, you enter details of the interface to configure such as Network Device Type Ethernet and Configuration Name 0.

Under Kernel Module, enter the name of the module to load. You can select the card model from a list of network cards. Some kernel modules can be configured more precisely by adding options or parameters for the kernel. Details about parameters for specific modules can be found in the kernel documentation. From this dialog you enter the following information to integrate the network device into an existing network:.

Automatic address setup via DHCP. Static address setup.

If you choose this option, you need to enter the IP address of the network interface or of the computer in the network under IP Address. Each computer in the network has at least one address for each network interface, which must be unique in the entire network. According to the currently valid standard IPv4 , this address consists of a sequence of four bytes, separated by dots such as When choosing the IP address, you need to know if the computer will be directly connected to the Internet. In this case, use an assigned official IP address.

Otherwise, use an address from a private address space. Subnet Mask. The network mask referred to as subnet mask in YaST , determines in which network an IP address is located.

Suse Linux Enterprise server 12: Fundamentals

The mask divides the IP address into a network section and a host section, thus defining the size of a network. All computers within the network can reach each other directly without a router in between. Hostname and Name Server. Computers in the network can be addressed directly using their IP addresses or with a unique name. If you want to change data delivered by DHCP e. If you only want to change other information you can select Accept here.

Enter a name with which the computer can be addressed. This name should be unique within the network. Domain Name. This is the name of the DNS domain to which the computer belongs. Domains help to divide networks. All computers in a defined organizational area normally belong to the same domain. This consists of the host name and the name of the domain, such as da In this case, the domain would be digitalairlines. List of name servers. To address other computers in the network with their host names, identify the name server, which guarantees the conversion of computer names to IP addresses and vice versa.

You can specify a maximum of three name servers. Domain search list. In the local network, it is more appropriate to address other hosts not with their FQDN, but with their host names. The domain search list specifies the domains with which the system can expand the host name to the FQDN.

This complete name is then passed to the name server to be resolved. For example, da51 is expanded with the search list digitalairlines. This name is then passed to the name server to be resolved. If the search list contains several domains, the completion takes place one after the other, and the resulting FQDN is passed to the name server until an entry returns an associated IP address.


Separate the domains with commas or white space. If the computer is intended only to reach other computers in the same subnet, then it is not necessary to enter any routes. However, if you need to enter a default gateway or create a routing table, select Routing from the Network address setup dialog. The following appears: Figure Default Gateway. If the network has a gateway a computer that forwards information from a network to other networks , its address can be specified in the network configuration. All data not addressed to the local network is then forwarded directly to the gateway.

Routing Table. You can create entries in the routing table of the system after selecting Expert Configuration. Enable IP Forwarding. If you select this option IP packages that are not dedicated for your computer are routed.

All the necessary information is now available to activate the network card. In the General tab of the Network Address Setup dialog, you can set up a few more options. Firewall Zone. De- activate the firewall for the interface. If activated, you can specify the zone to put the interface in. Three zones are possible:. On Cable Connection. If there is a physical network connection. On Hotplug.

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When the hardware is plugged in. Normally only root is allowed to activate and deactivate a network interface.

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To allow this for normal users activate the option User Controlled. The size depends on the hardware Ethernet: max. After you save the configuration with YaST, the ethernet card should be available in the computer.