red hat linux system

... or registered trademarks of Hungry Minds. Red Hat, Red Hat Press, and the Red Hat Press logo are trademarks or registered trademarks of Red Hat, Inc Linux is a trademark or registered trademark ... Experts at Red Hat www.redhat.com www.hungryminds.com Cover design by Michael J Freeland Cover photo © Hulton Getty Trang 2Red Hat ® Linux ® Networking and System AdministrationTrang 4Red Hat ® Linux ... September 11, 2001.Trang 10Red Hat Linux is the most popular distribution of Linux currently in use Red Hat Linux has shown itself to be a robust, reliable operating system that can run on a variety

Ngày tải lên: 12/12/2013, 22:15

... covered is the Red Hat Network, a subscription serviceavailable with Red Hat Enterprise Linux that you can use to keep your systemcurrent You can register your systems with Red Hat and then receive ... that this book is useful for users of Fedora Core, the opensource community–based Linux project supported by Red Hat, as well as users of Red Hat Enterprise Linux Preface ix Trang 13Part I: System ... other countries, and may not be used without written permission Red Hat is a regis- tered trademark of Red Hat, Inc Linux is a registered trademark of Linus Torvalds All other trademarks are the

Ngày tải lên: 07/07/2014, 09:20

... run whatever came on the com-puter, assuming that things came properly configured from the factory Theuser or enterprise that decides on Linux has decided, also, to assume the con-trol that Linux ... other operating systems Red Hat has employed innovationsthat extend these duties even for the experienced Linux user This chapterbriefly looks at those responsibilities, which are covered in more ... 6: System Startup and Shutdown Chapter 7: The File System Explained Chapter 8: Examining the System Configuration Files Trang 10Duties of the System Administrator IN THIS CHAPTER ■■ The Linux System

Ngày tải lên: 07/07/2014, 09:20

... The Red Hat boot disk starts your PC and the Red Hat Linux installationprogram After you install Red Hat Linux, you no longer need the Red Hatboot disk (except when you want to reinstall Red Hat ... the installation section. Creating the Red Hat Boot Disk To boot Red Hat Linux for the first time and start the Red Hat Linux tion program, you need a Red Hat boot disk For this step, you should ... reinstall Red Hat Linux from theCD-ROMs) The Red Hat boot disk contains an initial version of the Red Hat Linuxinstallation program that you use to start Red Hat Enterprise Linux, preparethe

Ngày tải lên: 07/07/2014, 09:20

... ordeselect that package group T I P In an actual Red Hat Linux installation, you install exactly those package groups that you need Each package group requires specific packages to run The Red Hat installation ... PC A table then liststhe Linux partition and any other partitions that may contain another operatingsystem If your system has a Linux partition and a DOS partition (that actuallyhas Windows 95/98 ... default operating system Thedefault operating system is the one with a check mark in the Default column in Figure 3-10 In this case, Red Hat Linux is the default operating system.All of the instructions

Ngày tải lên: 07/07/2014, 09:20

... related to system sound and video For example, if you want to adjust the system volume, use the utility here ■■ System Tools — This menu choice gives you access to many Enterprise Linux system administration ... adjust the system volume, use the utility here ■■ System Settings — This menu item contains Enterprise Linux system administration utilities and some GNOME configuration utilities as well ■■ System ... to the folder that contains the system mount point for the CD-R drive Double-clicking this icon displays the contents of the CD-ROM disk that you inserted in the CD-R drive ■■ Filesystem — This

Ngày tải lên: 07/07/2014, 09:20

... System Boot ■■ Shutting Down the System ■■ Changing the GRUB Configuration All Red Hat systems, whether Fedora Core or Enterprise Linux, use a similarprocedure for starting up the operating system ... times that your system boots The process of shutting down the system also follows a consistent, orderlymethod that you can customize as you desire For a clear understanding ofhow your system ... panel is the Applications icon, indicated by the Red Hat icon To the right ofApplications are icons representing programs that were installed during thesystem installation You can start any of these

Ngày tải lên: 07/07/2014, 09:20

... operating systems is that Linux canread and write to several different file systems that originated with other oper-ating systems much different from Linux This section details the different filesystems ... handy since it reduces system administration time This is a fast file system, and now you can read and write to and from it with your Red Hat Linux machine Nonstandard Linux File Systems Support ... in Linux for VxFS file systems GFS GFS is Sistina’s Global File System It is a clustered journaling file system forSANs that enables multiple servers to have read/write access to a single filesystem

Ngày tải lên: 07/07/2014, 09:20

... information /etc/sysconfig/selinux This file is a link to /etc/selinux/config and is used to control selinux onthe system It contains two settings that control the state of selinux — enforc-ing, permissive, ... this directory should be edited by hand For more informa-tion on Red Hat Network, see the Red Hat Network Web site at https://rhn.redhat.com Net-Examining the Network Configuration Files This section ... file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead

Ngày tải lên: 07/07/2014, 09:20

... Fedora Core and Red Hat Enterprise Linux is thePrinter Configuration tool to help you configure your printing system ThePrinter Configuration tool is an easy-to-use, graphical tool that will help ... (LPD)— A printer attached to a different UNIX tem that can be accessed over a TCP/IP network (for example, a printerattached to another Red Hat Linux system on your network) If youchoose this type ... Enterprise Linux, you can use two video cards and monitors on your system if you desire To configure a second video card and monitor, dothe following: 1 On Enterprise Linux 4 choose Applications ➪ System

Ngày tải lên: 07/07/2014, 09:20

... and Red Hat Enterprise Linux systems, the /etc/exportsfile is the main NFS configuration file It lists the file systems the serverexports, the systems permitted to mount the exported file systems, ... in Red Hat Linux). rw Exports the file system read-write, permitting operations that change the file system. secure Requires client requests to originate from a secure (privileged) port, that ... directories, such as /usr/share, the systemmail spool (/var/spool/mail), and file systems that contain sharedapplication binaries and data File systems that are relatively static,such as /usr,

Ngày tải lên: 07/07/2014, 09:20

... well-run system, IPaddresses can change, whereas a hostname won’t If DNS is properlyconfigured and maintained, the hostname will always point to the propersystem regardless of what that system’s ... export. While we’re somewhat embarrassed to be running such an old version of Red Hat, we’re also quite pleased to report that it has been running so well for so long that we forgot just how old ... automatically mounts all networked file systems notconfigured with the noauto option, including NFS file systems It does this byparsing /etc/fstab looking for file systems of type nfs, nfs4 (described

Ngày tải lên: 07/07/2014, 09:20

... /etc/host.conf so that it uses NIS for hostname lookups Bydefault, the Fedora Core and Red Hat Enterprise Linux host.conf file lookslike the following: order hosts,bind This configuration means that name ... the clientsystem at the mount point /net And here’s the procedure: The server system has already been configured as an NIS and NFS server Likewise, the client system has already been ured as an ... to configure Fedora Core and Red Hat EnterpriseLinux systems as NIS servers and clients You first learned how to set up andtest an NIS server and how to ensure that the NIS server comes up after

Ngày tải lên: 07/07/2014, 09:20

... modify your system’s firewall setup (you are running a firewall, right?). 1. To start the Security Level Configuration tool, select Red Hat ➪ System Settings ➪ Security Level or type system-config-securitylevel ... (Red Hat ➪ System Settings ➪ Date & Time) or type system- config-date at a command prompt Either way, you should see the screen shown in Figure 17-1 If NTP is already running on your system, ... that a startup script, /home/bubba/.vnc /xstartup, has been created and that the script has been executed, that is, the applications it specifies are running on the Xvnc display. This means that

Ngày tải lên: 07/07/2014, 09:20

... information, not only for NFS but also for allvarieties of Linux issues, is the Linux Performance Tuning Web site athttp://linuxperf.nl.linux.org/ Trang 10Optimizing NISHow do you know when you ... two.” ser-C H A P T E R 18 Trang 3Optimizing the X Window SystemOptimizing the X Window system is not easy The core X protocol, despitewhat its detractors say, is actually pretty well tuned Of ... impose overhead on the windowing system to keep the back-ground properly rendered and up to date Shaped windows and bor-ders are aesthetically pleasing but somewhat expensive in terms ofresources

Ngày tải lên: 07/07/2014, 09:20

... Tool, type system-config-httpd at a command prompt or select Red Hat ➪ System Settings ➪ Server Settings ➪ HTTP Server However, we do not recommend using HTTP Configuration Tool on your systems ... virtual hostsso that it will act as the default server If you fail to add a virtual host for theexisting server, requests that should be answered by the existing Web serverwill be answered by the added ... AddOutputFilter directive tells Apache that files with an shtmlextension should be processed using mod_include, the module that providesApache’s SSI support (the default Red Hat httpd.conf file should containthese

Ngày tải lên: 07/07/2014, 09:20

... Syndication with RSS,” which appeared in the print version of Linux Journal in September 2004 and is also available on the Web at Linux Journal’s Web site at www.linuxjournal .com/article/7670 Another ... are a variety of tools thatautomate the creation of RSS feeds, and some content management systemseven include tools to create RSS feeds automatically Other tools exist that youcan use to validate ... Selecting Content for an RSS Feed What kind of content might be appropriate to include in an RSS feed? turally, any sort of list-oriented information, that is, information that can be Struc-organized

Ngày tải lên: 07/07/2014, 09:20

... System Chapter 32: Performance Monitoring Trang 4■■ Using the RedHat up2date Agent■■ Registering Your System with the Red Hat Network ■■ Accessing the Red Hat Network with a Web browser The Red ... system. Before you can begin using the Red Hat Network, you must first register yoursystem with Red Hat by using the Red Hat Network registration client N OT E You can also register for the Red ... Network with a Web browser The Red Hat Network up2date agent is a program that is installed by defaultwhen you install Fedora Core or Red Hat Enterprise Linux The Red Hat Net-work up2date software

Ngày tải lên: 07/07/2014, 09:20

... signature to make surethat it has not been tampered with Files placed in the Linux Kernel Archivesare OpenPGP-signed, and you can use these digital signatures to prove thatfiles you have downloaded ... check box ensures thatyou will not be prompted for them This option also makes obsolete driversavailable, that is, old drivers that have been replaced by something else or thatmight be removed ... Similarly, most systems onwhich you will run Fedora Core or RHEL should have System V IPC enabled.IPC, which stands for Interprocess Communication, allows programs running on a Linux system to share

Ngày tải lên: 07/07/2014, 09:20

... One of the benefits of Linux frame cer-buffer support is that it provides that trés chic Linux boot logo displayed on the screen in console (text) mode More importantly, Linux’s frame buffer port ... ubiquitous Linux has become So far, all USB devicesdiscussed have been attached to a system running Linux The USB GadgetDrivers section is for USB devices that are themselves running Linux Such ... infinibandta.org/home/ File Systems The File systems configuration section enables you to configure support forthe file systems you expect to use or access from your system One of Linux’sgreatest strengths

Ngày tải lên: 07/07/2014, 09:20