Lab Exercise 3.2: Installing Linux Products and Managing Processes

In this exercise, you will install the Mozilla web browser on your server. Then you will practice managing Linux processes. Complete the following steps:

Warning

This lab assumes you have Internet access from your Linux server .

1. Boot your Linux server and authenticate as your student user with a password of novell . Change to your root user account entering sux - at a shell prompt.
   
   
2. Your SUSE Linux distribution comes with an older version of Mozilla, which was installed when the system was installed. You need to use a newer version in order to access Novell's NNLS web-based management utilities. To do this, you need to complete these steps:
   
   

   1. Select Applications , Internet , WWW , Mozilla .
      
      
   2. In your Mozilla window, browse to http://www.mozilla.org.
      
      
   3. Download the latest version of Mozilla to /tmp . You must use version 1.5 or later.
      
      
   4. When the download is complete, close your browser window.
      
      
   5. Open a terminal session.
      
      
   6. Change to the root user account by entering su - and supplying a password of novell .
      
      
   7. Change to the /tmp directory by entering cd/tmp .
      
      
   8. At the shell prompt, enter ls . Notice that the file you downloaded from Mozilla.org is a tarball file. For example, if you downloaded Mozilla 1.6, you will see a file named mozilla-i686-pc-linux-gnu-1.6-installer.tar.gz .
      
      
   9. Extract the tarball by entering tar -zxvf ./mo ; then press the Tab key. Notice that the rest of the filename is automatically completed for you. The tab-complete feature of Linux makes typing long filenames much easier.
      
      
   10. At the shell prompt, enter ls . You should now see a new directory named mozilla-installer where the files from the archive were extracted.
       
       
   11. Enter cd mozilla-installer .
       
       
   12. Start the installation script by entering ./mozilla-installer .
       
       
   13. At this point, you will be presented with a graphical installation wizard that varies depending on the version of Mozilla you've downloaded. Follow the prompts presented to complete a typical installation to the /usr/local/mozilla directory.
       
       

Create an icon on your Desktop for the new version of Mozilla by completing the following steps:

1. Right-click anywhere on your Desktop.
   
   
2. Select New Launcher .
   
   
3. In the Name field, enter Mozilla .
   
   
4. In the Generic Name field, enter Mozilla .
   
   
5. In the Command field, enter /usr/local/mozilla/mozilla .
   
   
6. Select the No Icon button.
   
   
7. Select an icon of your choosing for the Mozilla browser icon.
   
   
8. Click OK .
   
   
9. Close any open browser windows ; then test your new launcher by double-clicking the Mozilla icon on the Desktop.
   
   
10. The Mozilla browser should be displayed as shown in Figure 3.31.
    
    

    Figure 3.31. Mozilla running on SUSE Linux.

    

    
    

Install the Pure-FTP service on your server by completing the following steps:

1. Start YaST on your server by selecting Applications , SUSE Menu , System , YaST2 .
   
   
2. When prompted, supply your root user's password ( novell ).
   
   

   Note

   When you do this, you'll notice that YaST returns a password error but runs anyway. You can safely disregard the error message .

3. Select Install or Remove Software .
   
   
4. In the Filter drop-down list, select Package Groups .
   
   
5. Select zzz All .
   
   
6. In the top-right frame, scroll down to and select pure- ftpd .
   
   
7. Click Accept .
   
   
8. When prompted, insert UnitedLinux 1.0 CD #2 and then click OK.
   
   
9. Wait while the package is installed.
   
   
10. When the installation is complete, click Close .
    
    

Follow these steps to manage the pure-ftpd service on your server:

1. Open a terminal session and change to your root user account by entering su - and supplying a password of novell .
   
   
2. At the shell prompt, enter cd /etc/init.d .
   
   
3. Enter ls . You should see a script for the pure-ftpd daemon, as shown in Figure 3.32.
   
   

   Figure 3.32. The pure-ftpd script.

   

   
   
4. Check to see the runlevels pure-ftpd is configured to automatically start at by entering chkconfig -l pure-ftpd at the shell prompt.
   
   
5. You should see that pure-ftpd is not configured to automatically start at any runlevel. Start the pure-ftpd service by entering ./pure-ftpd start .
   
   
6. Configure pure-ftpd to automatically start at runlevels 3 and 5 by entering chkconfig pure-ftpd 35 .
   
   
7. Verify this change by entering chkconfig -l pure-ftpd .
   
   

Now you can practice managing Linux processes by completing the following steps:

1. At your shell prompt, enter top .
   
   
2. Sort the display by CPU usage by entering P .
   
   

Which process is using the most CPU cycles on your system?

1. Open a new terminal session.
   
   
2. Change to the root user with the su - command.
   
   
3. Kill the top process by entering killall top . Notice that the top process in the first terminal session is terminated , as shown in Figure 3.33.
   
   

   Figure 3.33. Killing the top process.