Apache web server tutorial - failsafe session simply opens a shell window so
failsafe session simply opens a shell window so you can type commands to correct the problem before you log in again. When you are done with a failsafe session, type exit to be allowed to log in again. Language Click Language to select a language other than the last language you used (indicated by the Last button on this menu). (You need additional software packages to use different languages.) System If instead of logging in, you want to shut down or restart the computer, click System, and select either Reboot or Halt. For a normal login, at the login prompt type your user name and, when prompted, your password. Every Linux system has a root user and at least one non-root user (with a name of your choosing) assigned when Linux is installed. The root user has the capability to run programs, use files, and change the computer setup in any way. Because the root user has special powers, and can therefore do special damage, you usually log in as a regular user (which only has access to that user’s own files and those that are open to everyone). As someone just using the Linux system, you probably have your own unique user name and password. Often that name is associated with your real name (such as johnb, susanp, or dave4). If you are still not sure why you need a user login, see the sidebar Why Do I Need a User Login? for more information. Cross-Reference See Chapter 10 for a description of the root user and Chapter 11 for information on how to set up and use other user accounts. Refer to Chapter 14 for suggestions on how to choose a good password. Why Do I Need a User Login? If you are accustomed to using a PC, and you are the only one using your Linux computer, you may wonder why you need a user account and password. Unlike Windows, Linux (as its predecessor UNIX) was designed from the ground up to be a multiuser system. Here are several good reasons why you should use separate user accounts: Even as the only person using a Linux system, you will want a user name besides the root user for running applications and working with files to prevent you from changing critical system files by mistake during your everyday computer use. If several people are using a Linux system, separate user accounts let you protect your files from being accessed or changed by others. Networking is probably the best reason for using a Linux system. If you are on a network, a unique user name is useful in many ways. Your user name can be associated with resources on other computers: file systems, application programs, and mailboxes to name a few. Often a root user is not allowed to share resources on remote Linux systems. Over time, you will probably change personal configuration information associated with your account. For example, you may add aliases, create your own utility programs, or set properties for the applications you use. By gathering this information in one place, it s easy to move your account or add a new account to another computer in the future.
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