red hat linux system administration guide pdf

... this file: redhat−config−xfree86 (Applications | System Settings | Display)• redhat−config−keyboard (Applications | System Settings | Keyboard)• redhat−config−mouse (Applications | System Settings ... leased out? In Red Hat Linux 9 systems, this information is stored in the database file /var/lib/dhcp/dhcpd.leases. The data stored here includes a client identifier used by the client that requested ... sites that provide more documentation and developments on some of the services here: www.sendmail.org − the official sendmail web site• www.redhat.com − the official site for Red Hat Linux•

Ngày tải lên: 13/08/2014, 04:21

... suggests, Red Hat Linux makes greater use of group accounts than other Linux distributions do. So, knowing how to add, modify, and delete group accounts is more important on Red Hat systems than ... early Red Hat Linux distributions and carried forward into Fedora Core and RHEL. UPGs are intended to make Linux groups easier to use. Although the UPG scheme does not add or change the normal Linux ... and limited exceptions, the root account has unlimited power on any Linux or UNIX system, and, in this respect, Red Hat Linux is no exception The root account, or, to use the expression

Ngày tải lên: 07/07/2014, 09:20

... sysfs virtual file system, 155 syslog daemon, 172–174, 482 syslog.conf file, 172–174 syslogd system logger, 733 sysstat package, 822, 826 system activity report tool. See sar tool system administrator. ... 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 for ... messages indicating SELinux problems, 840–841 NTP-related entries, 405 Sudo logging to, 733 as troubleshooting resource, 879 system logger (syslogd), 733 system requirements, 20–21 system status icon

Ngày tải lên: 07/07/2014, 09:20

... PRESS Red Hat Linux Networking and System Administration Linux Solutions from the Experts at Red Hat SECURITY TOOLS INCLUDED ON CD-ROM Collings & Wall Your Official Red Hat ® Linux ® Guide ... 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 ... Hat Linux 27 Red Hat Linux File System 71 Red Hat. .. 31 Starting the Red Hat Linux Installation 32 Partitioning the Hard Disk for Red Hat Linux 36 Naming disks

Ngày tải lên: 12/12/2013, 22:15

... use it APM is a monitoring daemon that works with power management code within the Linux kernel It can alert you to a low battery if you are using Red Hat Linux on a laptop, among other things ... specification Red Hat specifies a separate configuration file for each network interface In a typical Red Hat install, you might have many different network interface config files that all follow ... time Red Hat and other Unix distributions have different runlevels, so there are a different set of programs that are started at each runlevel Examining the System Configuration Files Usually Red

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, IP addresses can change, whereas a hostname won’t. If DNS is properly configured and maintained, the hostname will always point to the proper system 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 ... indicate that the directory will be read/write, that it will be a soft mount, and that the read and write block sizes are 8192 bytes. Recall from Table 12-4 that a soft mount means that the kernel

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

... of the Linux networking world, and xinetd is an improvement on an important program that has been around for several years It incorporates new features that have been desired by system ... information, not only for NFS but also for all varieties of Linux issues, is the Linux Performance Tuning Web site at http://linuxperf.nl.linux.org/. 422 Chapter 18 24_599496 ch18.qxd 8/30/05 6:47 ... 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 of resources.

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 ... hosts so that it will act as the default server. If you fail to add a virtual host for the existing server, requests that should be answered by the existing Web server will be answered by the ... AddOutputFilter directive tells Apache that files with an .shtml extension should be processed using mod_include, the module that provides Apache’s SSI support (the default Red Hat httpd.conf file should

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

... Because Linux supports so many file systems, this chapter discusses only a few of the many file systems and file system options mount’s manual page contains a complete list of the file systems ... the file system using the file system-specific options fsoptions -r Mounts the file system in read-only mode -s Ignores options specified with -o that are invalid for the given file system type ... mounted file system rw 1 Mounts the file system in read/write mode suid 1 Enables set-UID and set-GID bits on the file system sync 1 Enables synchronous file system I/O on the file system user

Ngày tải lên: 07/07/2014, 09:20

... The Red Hat Hardware Compatibility List is on the Web at www.redhat.com/support/hardware . When choosing hardware for a Red Hat Linux system or installing Red Hat Linux on an existing system, ... or you may have heard that it is not. You may have heard that the exam is focused on Red Hat Linux and that knowledge of Unix or a Linux distribution other than Red Hat Linux will not help you ... to the following four categories: Tier 1 Hardware that Red Hat Linux can detect and reliably use. Tier 2 Hardware that Red Hat Linux should be able to detect and use; however, some users...

Ngày tải lên: 21/12/2013, 06:17

... called linux from the newly created directory ln -s linux- 2.4.20 linux ã The kernel is almost ready to be configured now, but first we need to make sure that all old binary files are cleared ... that they are not in use and that they are not referred to by other modules _____________________________________________________________________ 11 LinuxIT Technical Education Centre The Linux ... ___________________________________________________________ Notice that in a switched environment the switch may be configured to send packets to a given network interface only if those packets were addressed to that interface. In that case it is...

Ngày tải lên: 28/06/2014, 06:20

... Defined CHAPTER 1 Duties of 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 ... part introduces the system administrator’s duties. The chapters in this part discuss planning a network, installing Red Hat Linux, and working with the Red Hat Linux file system and configuration ... operating systems. Now, Red Hat has employed innovations that extend these duties even for the experienced Linux user. In this chapter, we look at those requirements. The Linux System Administrator Linux...

Ngày tải lên: 12/12/2013, 22:15

... configuration. Red Hat Linux Administration: A Beginner’s Guide 11 Begin8 / Red Hat Linux Administration: A Beginner’s Guide / Turner & Shah/ 222631-5 / 1 Blind Folio 1:11 1 Technical Summary of Linux ... screen Red Hat Linux Administration: A Beginner’s Guide 9 Begin8 / Red Hat Linux Administration: A Beginner’s Guide / Turner & Shah/ 222631-5 / 1 Blind Folio 1:9 1 Technical Summary of Linux ... access source code B. Freedom to redistribute the software Red Hat Linux Administration: A Beginner’s Guide 15 Begin8 / Red Hat Linux Administration: A Beginner’s Guide / Turner & Shah/ 222631-5...

Ngày tải lên: 24/04/2014, 09:18