If your computer has two network adapters, SuSE (Most popular web site)
If your computer has two network adapters, SuSE assumes the second interface is con- nected to a local (internal) network choosethe internal interface from the drop-down list. 5.Click Next to move to the next step. The Services list appears, as shown in Figure 34-4. Figure 34-4:The SuSE firewall builder (Step 2). 6.Use the check boxes to configure your firewall. Start out by clearing each check box that willlock your system down so that outsiders can tget through your firewall. Then, select each serv- ice that you want to provide to the outsideworld. For example, if you want to log in to yourcomputer from another system, select the SecureShell (ssh) check box. If you re running anApache Web server, select the HTTP check boxand the HTTP with SSL (https) check box. If you need to allow other services through yourfirewall, click the Expert button and list the serv- ice names (or port numbers) in the text box provided. 7.Click Next to move to the next step. The Features dialog appears (see Figure 34-5). Setting up a simple firewall in SuSE LinuxThe crew at SuSE have put a lot of work into theirfirewall builder (called SuSE Firewall2), making itpowerful and easy to use. Like the Mandrake andFedora firewall builders, SuSE Firewall2 stores yourpreferences in a configuration file (/etc/sysconfig/ SUSEfirewall2) and executes a series of iptablescommands when you apply your changes. To run the SuSE firewall builder, follow these steps: 1.Open the main menu and choose System.YaST. The YaST Control Center appears. 2.Click Security and Users (in the left-hand pane), and then click Firewall. The SuSE Firewall2 window appears, as shown inFigure 34-3. Figure 34-3:The SuSE firewall builder (Step 1). 3.Choose your external interface from the drop- down list. The external interface is the network interfaceconnected to the outside world (the Internet).
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