becoming a suit managing the red hat linux file system

Red Hat Linux Networking , System Administration (P1) ppt

Ngày tải lên : 07/07/2014, 09:20

... countries, and may not be used without written permission Red Hat is a registered trademark of Red Hat, Inc Linux is a registered trademark of Linus Torvalds All other trademarks are the property of their ... is a robust, reliable operating system that can run on a variety of hardware, from personal computers to large mainframes Linux in general, Fedora Core and Red Hat Enterprise Linux in particular, ... of the file system and system configuration files Chapter explains some of the common tasks an administrator may perform, such as installing servers and application software, managing user accounts,...

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Red Hat Linux Networking , System Administration (P2) pot

Ngày tải lên : 07/07/2014, 09:20

... a different wallpaper image or adds an application that was acquired apart from the machine itself, he or she has taken on the role of system administration The highfalutin’ title of system administrator ... Upgrading Software Packages Using the Red Hat Package Manager General Options Query Mode Querying Package Dependencies What’s in That RPM? Formatting Query Output Package Installation and Removal ... of the System Administrator applications If there are particular forms, for example, that are used throughout an enterprise, the system administrator would set them up or at least make them available...

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Red Hat Linux Networking , System Administration (P3) potx

Ngày tải lên : 07/07/2014, 09:20

... the Red Hat boot disk from the floppy drive and label it as a Red Hat boot disk Starting the Installation To start the Red Hat Linux installation, power up the PC and put the Red Hat Installation ... you want to reinstall Red Hat Linux from the CD-ROMs) The Red Hat boot disk contains an initial version of the Red Hat Linux installation program that you use to start Red Hat Enterprise Linux, ... mode and see whether the CD-ROM can be accessed The Red Hat boot disk starts your PC and the Red Hat Linux installation program After you install Red Hat Linux, you no longer need the Red Hat boot...

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Red Hat Linux Networking , System Administration (P4) ppsx

Ngày tải lên : 07/07/2014, 09:20

... that many of the text fields are already filled in This is because the program has loaded the anaconda-ks.cfg file that was created during your system installation N OT E The anaconda-ks.cfg file ... to administer To make your job easier, a program is available that automates the Red Hat installation process This program is called Kickstart With Kickstart you can create and store configuration ... need Each package group requires specific packages to run The Red Hat installation program automatically checks for any package dependencies and shows you a list of packages that are required but...

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Red Hat Linux Networking , System Administration (P5) potx

Ngày tải lên : 07/07/2014, 09:20

... are small programs called applets that have a variety of uses For example, there is a weather applet that you can place on the panel to give you weather forecasts for any area you desire In addition ... addition to the applets that are already on the panel, you can add your own You also can move applets that are already there or delete them to make more room To add applets to the panel, the following: ... that you can add to the panel as well as applets — applications that provide some type of useful information or entertainment Managing Applets on the Panel The icons on the top and bottom panels...

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Red Hat Linux Networking , System Administration (P6) ppt

Ngày tải lên : 07/07/2014, 09:20

... variable or static Shareable files are files that can be accessed by other hosts, and unshareable files can be accessed only by the local system Variable files contain information that can change ... on the panel to give you weather forecasts for any area you desire In addition to the applets that are already on the panel, you can add your own You also can move applets that are already there ... information or entertainment Managing Applets The icons on the bottom panel are small programs called applets that have a variety of uses For example, there is a weather applet that you can place...

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Red Hat Linux Networking , System Administration (P7) pps

Ngày tải lên : 07/07/2014, 09:20

... remote file systems, memory file systems, CD-ROM file systems, virtual file systems, and metadevice file systems This makes Linux very good at managing and accessing any file or file systems that ... devices are referred to in this book as a metadevice An example of a metadevice is a disk array that makes many disks look like one large disk When a disk that’s mounted as a The File System Explained ... takes advantage of the fact that copying a large amount of data is much faster across a SCSI connection than across a network If you need to copy a large amount of raw disk data across a network,...

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Red Hat Linux Networking , System Administration (P8) ppsx

Ngày tải lên : 07/07/2014, 09:20

... configuration file for each network interface In a typical Red Hat install, you might have many different network interface config files that all follow the same basic syntax and format You could have ... your system When you look at a directory listing of the rc directories, notice that the files either start with S or K The files that start with S are startup files, and the files that start with ... 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...

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Red Hat Linux Networking , System Administration (P9) ppsx

Ngày tải lên : 07/07/2014, 09:20

... addresses and the Media Access Control (MAC) addresses Network Layer addresses are IP addresses that have been assigned to the device The MAC address is built into the card by the manufacturer and ... instructions Because packets also contain data, each is made up of two parts, the header, which contains the address and reassembly instructions, and the body, which contains the data Keeping all this ... services and request an officially assigned network number An organization called the InterNIC maintains a database of all assigned network numbers to ensure that each assignment is unique After obtaining...

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Red Hat Linux Networking , System Administration (P11) ppt

Ngày tải lên : 07/07/2014, 09:20

... shared data directories, such as /usr/share, the system mail spool (/var/spool/mail), and file systems that contain shared application binaries and data File systems that are relatively static, ... however, states that /var/lib/nfs/xtab contains the table of current exports We not have an explanation for this — it’s just a fact of life that the manual page and actual usage differ The last two ... applied Do not insert a space between the hostname and the opening parenthesis that contains the export options; a space between the hostname and the opening parenthesis of the option list has...

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Red Hat Linux Networking , System Administration (P12) ppsx

Ngày tải lên : 07/07/2014, 09:20

... automounted file systems, and nfs for NFS file systems The first output line shows that automount is managing the /projects file system; the second line shows that the automount-managed file system has ... becomes unavailable for some reason, slave servers can function as backup servers until the master is again available NIS revolves around the notion of a domain An NIS domain is a unique name that refers ... 13-3, except that each domain has a slave server, admin-slave and devel-slave, and some of the clients in each domain communicate with the slave servers rather than with the master As in the single-server...

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Red Hat Linux Networking , System Administration (P13) pot

Ngày tải lên : 07/07/2014, 09:20

... because it is part of Fedora Core and RHEL and because it is the database technology underneath the Red Hat Database Together, familiarity with these two database packages should cover the majority ... and configure the hardware Install and configure the operating system Install and configure the database software to create a standard installation Make sure that the basic installation works Set ... is accessible, and performs acceptably In most shops, Linux system administrators are not responsible for the daily care and feeding of the database because database administrators (DBAs) handle...

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Red Hat Linux Networking , System Administration (P14) pps

Ngày tải lên : 07/07/2014, 09:20

... displays the structure of a MySQL database, the tables in that database, and the columns (or fields) that make up that database It uses an option syntax similar mysqladmin, but takes different (and ... data and data structures associated with the database Unless you have previously saved the data, dropping a database is a permanent action Because it is such a drastic action, only the database ... Deletes a database from the database cluster dropuser Deletes a user form the database cluster pg_dump Saves (dumps) the contents of a database or database object to a file pg_restore Reloads a database...

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Red Hat Linux Networking , System Administration (P15) ppsx

Ngày tải lên : 07/07/2014, 09:20

... external access poses a security risk, so you have to weigh that risk against the advantages and decide whether VNC is the way you want to go As you saw in this chapter, the advantages of remote access ... that provides the authoritative clock against which all other systems on the LAN sync their clocks Perhaps the boss wants people to be able to share information on the company intranet and asks ... window manager and the plain gray background Remember that xstartup file, /home/bubba/ vnc/xstartup? You can edit that to change the default desktop Listing 16-1 shows the default xstartup file: ...

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Red Hat Linux Networking , System Administration (P16) ppsx

Ngày tải lên : 07/07/2014, 09:20

... establishing and maintaining the connection and formatting and transmitting the data The availability of a wide range of Internet services makes Linux machines versatile workhorses that can fulfill many ... that run standalone and those started by the xinetd server is the amount of config information required and availability — that is, whether the associated service needs to be constantly available ... Firewall Packages Linux provides a few different mechanisms for system security One of these mechanisms is Linux s firewall package The primary firewall package available is iptables iptables is a...

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Red Hat Linux Networking , System Administration (P20) pot

Ngày tải lên : 07/07/2014, 09:20

... “|/usr/lib/mailman/mail/mailman mailman-bounces: “|/usr/lib/mailman/mail/mailman mailman-confirm: “|/usr/lib/mailman/mail/mailman mailman-join: “|/usr/lib/mailman/mail/mailman mailman-leave: “|/usr/lib/mailman/mail/mailman ... “|/usr/lib/mailman/mail/mailman mailman-owner: “|/usr/lib/mailman/mail/mailman mailman-request: “|/usr/lib/mailman/mail/mailman mailman-subscribe: “|/usr/lib/mailman/mail/mailman an” mailman-unsubscribe: ... aliases mailman: postmaster mailman-owner: mailman After you’ve added the aliases, uses the newaliases utility to update the binary aliases database # newaliases Restart your MTA If you are using...

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Red Hat Linux Networking , System Administration (P21) pot

Ngày tải lên : 07/07/2014, 09:20

... shtml) that point to documents in the domain it is indexing, creating a database of words in each document and another database of the URLs Additional steps massage these databases into a searchable ... increase the size of OpenLDAP’s cache to use more RAM For more details about these performance tuning tips, have a look at the OpenLDAP FAQ, available on the Web at openldap.org/faq/data /cache/190.html ... search database and then create some customized indexes to facilitate fast searching Fortunately, you not have to this manually ht://Dig uses a script named rundig to automate database creation and...

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Red Hat Linux Networking , System Administration (P22) potx

Ngày tải lên : 07/07/2014, 09:20

... to exclude packages by the name of the package or by the name of the file ■ ■ To exclude a package by package name — Type the name of the package in the Add New field in the Package Names to Skip ... Accessing the Red Hat Network with a Web browser The Red Hat Network up2date agent is a program that is installed by default when you install Fedora Core or Red Hat Enterprise Linux The Red Hat Network ... Enterprise Linux system with the Red Hat Network Finally, you learned that you can access the Red Hat Network using a Web browser, and you looked at the Web interface pages to learn what you can with them...

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Red Hat Linux Networking , System Administration (P23) pptx

Ngày tải lên : 07/07/2014, 09:20

... programs running on a Linux system to share data using message queues, semaphores, or shared memory POSIX Message Queues are a variant of the message queues that provide functionality not available ... option, a blank box indicates that the corresponding feature is disabled; a check mark indicates that the corresponding feature is enabled; a dot indicates that it will be compiled as a module A module, ... that are part of a cluster Just as the computing public began to understand and use PCI-X, the PCI Special Interest Group (PCI-SIG), the organization that develops and maintains the PCI standard,...

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Red Hat Linux Networking , System Administration (P24) pptx

Ngày tải lên : 07/07/2014, 09:20

... tools are available, but they are not always available and often fail to offer a complete interface to subsystem administration In fact, many GUI administration tools are little more than graphical ... make bulk changes and perform system maintenance and administration unattended and automatically To otherwise is inefficient and impractical Fedora Core and RHEL are far from the only Linux systems ... contains static data declared in the program; the bss section contains uninitialized global data The dec field shows the total file size in decimal bytes and the hex field shows the total file...

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