Installing sendmail

As mentioned previously, sendmail is never installed by default on a SUSE system. To install sendmail, you will need to remove Postfix, the default MTA on SUSE Linux systems, or any other MTA that you may previously have installed. SUSE's use of RPM as a core database for tracking installed packages and associated files simplifies adding and removing entire packages, but YaST makes the process even easier.

To install sendmail on your SUSE Linux system, do the following:

1. Start YaST, select Software, and finally, select Install and Remove Software. Click the Administrator Mode button and enter the system's root password to proceed to the actual software installation screen.

2. To locate the sendmail package, enter sendmail in the Search text box and click the Search button. The sendmail package displays in the package list at the top right of this dialog box. Click the check box to indicate that you want to install the package and the Accept button in the lower-right portion of the Install and Remove Software pane.

3. If you configured your SUSE system as a server system, YaST automatically installed Postfix for you as part of the basic server installation. If this is the case, YaST displays the Dependency Conflict dialog box shown in Figure 17-2. As you can see from this figure, YaST automatically detects that sendmail conflicts with the Postfix MTA that is currently installed.

To resolve this conflict, select the delete postfix radio button, which is shown in Figure 17-2. Click OK - Try Again to proceed.

4. If the media containing the sendmail package is not already in your CD or DVD drive, YaST prompts you to insert the appropriate CD or DVD and proceeds with the installation.

5. After installation is complete, YaST displays a dialog box asking if you want to install other packages. Click No and then click OK to close YaST's Install and Remove Software pane.

FIGURE 17-2

YaST2's dependency conflict dialog

FIGURE 17-2

YaST2's dependency conflict dialog

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