red hat linux system administration 1 rh124 pdf

... What Is Covered in This Book? 8 Conventions in This Book 9 Customer Support 10 Source Code and Updates 10 Errata 11 Technical Support 11 p2p.wrox.com 11 Chapter 1: Installing Red Hat Linux ... Package Security 113 Installing Packages 115 Removing Packages 117 Upgrading Packages 118 Verifying Package Integrity 119 Package Installation in TAR Format 119 Summary 121 Chapter 5: Everyday ... Beginning Red Hat Linux 9 1 Introduction 4 Who Is This Book For? 4 What You Need to Use This Book 4 What Is Linux? 5 Linus Torvalds and the Birth of Linux 5 Why Choose Linux? 6 What Is Red Hat Linux

Ngày tải lên: 13/08/2014, 04:21

... Trang 7The Linux Kernel 81 Kernel Components 8 2 Compiling a Kernel 10 3 Patching a Kernel 11 4 Customising a Kernel 14 System Startup 19 1 Customising the Boot Process 19 2 System Recovery ... initrd 25 The Linux Filesystem 29 1 Operating the Linux Filesystem 29 2 Maintaining a Linux Filesystem 31 3 Configuring automount 33 Hardware and Software Configuration 36 1 Software RAID ... /mnt/current Filesystem 1K-blocks Used Available Use% Mounted on /tmp/initrd.img 317 191 126 61% / mnt/current 4 Create a new image file called initrd-new.img of size 161K dd if=/dev/zero

Ngày tải lên: 30/01/2020, 10:13

... chapter suggests, Red Hat Linuxmakes greater use of group accounts than other Linux distributions do So,knowing how to add, modify, and delete group accounts is more important onRed Hat systems than ... /etc/group 901:x:901:bubba 902:x:902:joebob 903:x:903:marysue # tail -3 /etc/shadow bubba:jYNrf8iU4DM:12895:0:99999:7::: joebob:b.hw8uEMl6eNM:12895:0:99999:7::: marysue:R1ER36oNXeUaA:12895:0:99999:7::: ... early Red Hat Linux distributions and carried forward into FedoraCore and RHEL UPGs are intended to make Linux groups easier to use.Although the UPG scheme does not add or change the normal Linux

Ngày tải lên: 07/07/2014, 09:20

... 139–140, 170–171 for log file rotation, 174–175 for prelogin banner, 168 for shared libraries, 174 for syslog daemon, 172–174 for Telnet prelogin banner, 168–169 for user messages at login, 168 ... 316–318 ypserv package, 311 ypserv.conffile, 315, 316, 317–318 yp-tools package, 311 ypwhichcommand, 219–220, 331, 332 ypxfrdNIS server transfer daemon, 316, 321–322 Z Zip drives, 645–646, 781 zone ... 9–10 monitoring security, 12 overview, 12 system clock See date and time, system system environmental settings for cron daemon, 171–172 for email aliases, 169 for file system information, 169–170

Ngày tải lên: 07/07/2014, 09:20

... of 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 ... 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

Ngày tải lên: 12/12/2013, 22:15

... 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 ... 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 ... 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

... CIDR address of 192.168.1.0/24 allows any host with an IPaddress in the range 192.168.1.1 to 192.168.1.254 (192.168.1.0 is excluded because it is the network address; 192.168.1.255 is excluded ... /usr/local *.example.com(ro) /usr/devtools 192.168.1.0/24(ro) /home 192.168.0.0/255.255.255.0(rw) /projects @dev(rw) /var/spool/mail 192.168.0.1(rw) /opt/kde gss/krb5(ro) The first line permits ... mounted on /home/username on that system So, for example, Trang 4because user u1 has logged in on pear, /exports/homes/u1 is mounted onpear’s file system as /home/u1 If u1 then logs in on mango, too

Ngày tải lên: 07/07/2014, 09:20

... Trang 1■■ Hide filesystems beneath— This option corresponds to the hideoption listed in Table 12-1.■■ Export only if mounted— This option corresponds to the mp[=path]option listed in Table 12-1 Selecting ... 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 ... directory will beread/write, that it will be a soft mount, and that the read and write block sizesare 8192 bytes Recall from Table 12-4 that a soft mount means that the kernelcan time out the

Ngày tải lên: 07/07/2014, 09:20

... example, that the map hosts.byname can beaccessed using the nickname or hosts So, try ypcat hosts: $ ypcat hosts 192.168.0.1 coondog.example.com coondog 192.168.0.2 hounddog.example.com hounddog 192.168.0.3 ... hounddog.example.com hounddog 192.168.0.3 moonshine.example.com moonshine 127.0.0.1 localhost.localdomain localhost 127.0.0.1 localhost.localdomain localhost 192.168.0.4 nisbeast.example.com ... 192.168.0.0/24(rw,no_subtree_check,secure,async,wdelay) This entry exports the file system /export/homes to any client with an IP address in the range 192.168.0.1-192.168.0.254 The export is figured as read-write, with subtree checking

Ngày tải lên: 07/07/2014, 09:20

... (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, ... -iconic & xterm -geometry 80x24+10+10 -ls -title “$VNCDESKTOP Desktop” & twm & Listing 16-1 The default xstartup file. 386 Chapter 16 22_599496 ch16.qxd 8/30/05 6:40 PM Page 386 As ... appreciate being able to access your desktop system from a remote location. Creating a VNC Server 391 22_599496 ch16.qxd 8/30/05 6:40 PM Page 391 Figure 16-10 Running KDE on Microsoft Windows via

Ngày tải lên: 07/07/2014, 09:20

... file(/etc/X11/xdm/Xservers) Find the line that resembles the following: :0 local /usr/X11R6/bin/XChange the line so that it looks like the following, and then exit andrestart X: :0 local nice -n -10 ... handling by gettingrid of fonts (that is, not loading them in /etc/X11/xorg.conf) thatyou do not use For example, on a laptop computer, you can probablydisable the 100-dpi fonts because you cannot ... I/O, see Chapter 12. ■■ Consider replacing 10-Mbit Ethernet cards with 100-Mbit Ethernet cardsthroughout the network Although only slightly more expensive thantheir 10-Mbit cousins, 100-Mbit cards

Ngày tải lên: 07/07/2014, 09:20

... May 19 01:05 manual drwxr-xr-x 2 root root 162 May 19 01:52 mrtg drwxr-xr-x 2 root root 61 May 19 02:09 nut-cgi-bin drwxr-xr-x 2 webalizer root 43 May 19 01:05 usage After confirming that SSI ... configuration, a systemmight have a single Ethernet interface, say, eth0, and a single primary IPaddresses, for example, 192.168.0.1 The aliases have IP addresses of the form 192.168.0.1:n, where n ... root 33 May 19 02:07 cgi-bin drwxr-xr-x 3 root root 4.0K May 19 01:05 error drwxr-xr-x 4 root root 33 May 22 00:04 html drwxr-xr-x 3 root root 8.0K May 19 01:47 icons drwxr-xr-x 14 root root

Ngày tải lên: 07/07/2014, 09:20

... screenthat resembles Figure 24-12 cre-Type in a search term (try documentroot) and press Enter or click the Search button The search results should resemble Figure 24-13 Trang 14Figure 24-12 Viewing ... Removes diacritical marks from ISO-Latin-1 char-acters so that, for example, e, e¯, e˘, e· , e¸, and eˇare considered thesame letter (e) for search purposes Trang 12■■ Exact match — Returns results ... 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

Ngày tải lên: 07/07/2014, 09:20

... Accessing the Red Hat 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 ... version of Enterprise Linux, you should register your 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 ... 31: Backing Up and Restoring the File System Chapter 32: Performance Monitoring Trang 4■■ Using the RedHat up2date Agent■■ Registering Your System with the Red Hat Network ■■ Accessing the Red

Ngày tải lên: 07/07/2014, 09:20

... unsaved changes (SeeFigure 27-11.) Trang 13Figure 27-10 Viewing the available kernel cryptography APIs in xconfig.Figure 27-11 xconfig’s Save dialog box. The good news is that future configuration ... BUILD arch/i386/boot/bzImage Trang 14Boot sector 512 bytes.Setup is 5487 bytes. System is 11237 kB Kernel: arch/i386/boot/bzImage is ready The new kernel build system (known as kbuild, oddly enough) ... 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

... 2006 $ cat datefile January 1, 2010 00:01:01 December 31, 2010 11:59:59 PM [root@luther /root]# date -f datefile Fri Jan 1 00:01:01 MST 2010 Fri Dec 31 23:59:59 MST 2010 $ date -r /boot/vmlinuz ... example, to see what process and user is using the Berkeley socket file/tmp/.X11-unix/X0, the following command would do: # fuser -u /tmp/X11-unix/X0 /tmp/.X11-unix/X0: 3078(root) Trang 11This command ... file system nouser 1 Permits only root user to mount the file system ro 1 Mounts the file system in read-only mode remount 1 Attempts to remount a mounted file system rw 1 Mounts the file system

Ngày tải lên: 07/07/2014, 09:20

... packages that come with Red Hat Linux. Tip A listing of all of the software packages in each Package Group is contained in the file RedHat/base/comps on the Red Hat installation CD−ROM. 19 . Configure ... to try Red Hat Linux on. Or you may have a killer workstation with some extra disk space and want to try out Red Hat Linux on a separate partition. To install the PC version of Red Hat Linux successfully ... are installing a dual−boot system that includes a Windows operating system, try to install the Windows system first and the Red Hat Linux system later. Some Windows systems blow away the Master...

Ngày tải lên: 19/01/2014, 18:20

... applications 17 6 Running Windows and Macintosh applications 17 8 Summary 18 0 Chapter 6: Publishing with Red Hat Linux 18 1 Overview 18 1 Choosing Red Hat Linux as Your Publishing Platform 18 1 Checklist ... Part I: Getting Started in Red Hat Linux Chapter List Chapter 1: An Overview of Red Hat Linux Chapter 2: Installing Red Hat Linux What Is Red Hat Linux? Having directories of software ... GNOME panel 11 0 Using the Nautilus file manager 11 4 Changing GNOME preferences 11 5 Exiting GNOME 11 8 Using the KDE Desktop Environment 11 8 Starting with KDE 11 9 KDE desktop described 11 9 Managing...

Ngày tải lên: 19/01/2014, 18:20

... Paste 13 0 5. Copy Paste 13 1 6. Search and Replace 13 1 7. Undo and Redo 13 2 8. Running a Shell Command 13 2 9. Save and Quit 13 2 10 . Exercises and Summary 13 3 THE X ENVIRONMENT 13 5 1. Introduction 13 6 2. ... QUESTIONS 15 0 LPI 10 1 OBJECTIVES 15 2 Topic 10 1: Hardware & Architecture 15 2 Topic 10 2: Linux Installation & Package Management 15 4 Topic 10 3: GNU & Unix Commands 15 6 Topic 10 4: Devices, Linux ... 99 1. Introduction 10 0 2. Static and Shared Libraries 10 1 3. Source Distribution Installation 10 5 4. The RedHat Package Manager RPM 10 8 5. Debian Package Management 11 3 6. The Alien Tool 11 7 7....

Ngày tải lên: 28/06/2014, 06:20

... the System Administrator CHAPTER 2 Planning the Network CHAPTER 3 Installing Red Hat Linux CHAPTER 4 Red Hat Linux File System CHAPTER 5 Red Hat System Configuration Files Part I b3632-X PtO1.F ... best system administrators will tell you, system administration is a state of mind. 12 Part I: Red Hat Linux System and Network Administration Defined c3632-X Ch 01. F 2/ 21/ 02 8:33 AM Page 12 Configuring ... Subnet Hub 18 Part I: Red Hat Linux System and Network Administration Defined c3632-X Ch02.F 2/ 21/ 02 8:33 AM Page 18 Monitoring and Tuning Performance The default installation of Red Hat Linux goes...

Ngày tải lên: 12/12/2013, 22:15