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For software, Red Hat distributes in Red Hat Package Manager (RPM) files, use the rpm command to install the software. For the typical Linux software, which you get in source-code form, this task involves using tools such as gunzip (to uncompress the software), tar (to unpack the archive), and make (to build the executable programs). If a user forgets a password, you can change the password from the Red Hat User Manager or can use the passwd command to change it. As shown in Chapter 18, you can use Nautilus’s Red Hat User Manager graphical tool or the useradd command to add a new user after you install Linux.
Red hat linux ppp configuration how to#
Chapter 3 tells you how to install and configure the X Window System, and Chapter 21 shows you how to upgrade the operating system-the Linux kernel.Īdding and removing users.
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You learn how to install Red Hat Linux and other software packages in Chapter 2. Installing, configuring, and upgrading the operating system and various utilities. I cover this type of information throughout this book, even when describing GNOME and KDE, because they too depend on configuration files for correct operation.Īs a system administrator, your tasks typically are the following: Additionally, you need to understand the layout of the key configuration files. However, you should always learn the key commands and be proficient with a plaintext editor such as vi, for those times when you must use a text-only login and the GUI tools are not available. GNOME’s Nautilus graphical shell comes with many GUI tools that enable you to perform most system-administration and network-administration tasks without having to edit configuration files manually or type cryptic commands. Chapter 6 describes some network-administration tools. Chapters 12 and 20 briefly cover some of these commands. Linux supplies all the basic commands and utilities you need for system and network administration. If you are running Linux on a home PC or on a few systems in a small company, you are probably both the system administrator and the network administrator. Really large sites may have separate system-administration and network-administration personnel. A site with many computers probably has a full-time system administrator who takes care of all system-administration and network-administration tasks. All these tasks are collectively called network administration. Now that almost all computers are networked, it’s necessary to perform another set of tasks to keep the network up and running.
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System administration refers to tasks that someone must perform to keep a computer system up and running properly.