Linux Administration: A Beginner's Guide, Fifth Edition by

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Of course, the topics covered cannot treat all security issues you may be faced with in detail; they merely serve to illustrate the problems that may arise. User Mode Linux (UML) is a virtual Linux machine that runs on Linux. Convenience finally costs less with CBT Direct - the most affordable online training solution today. Each tab in the interface contains a group of related configuration items, making configuration somewhat easier.

Learning Linux Commands

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The first step is to start the node applications (Virtual IP, GSD, TNS Listener, and ONS). Figure 23-8: The results of searching Freshmeat for fortune-mod 668 Part IV: Red Hat Linux System Maintenance Freshmeat lists four packages. From the January 2009 article A Beginner's Guide on How to Install Linux Software: "There are several different types of installation files for Ubuntu, and few of them are as easy to install as the EXE installation files found on Windows.

FreeRADIUS Beginner's Guide

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In many cases, examples were updated because OS vendors fixed bugs or added features, but as one might expect, we've discovered the occasional new bug here and there. NIS clients are programs that use NIS to query designated servers for information that is stored in the servers’ databases, which are known as maps. By splitting the IP address, it can be used on sites which need multiple connectivity, but eliminates the problems of high traffic and difficult manageability.

[(Linux Kernel Networking: Implementation and Theory )]

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The apparent hang is a pause while the kernel waits for the name resolver to time out — the boot process will eventually complete. A more realistic approach would be to register with one of the domain registration services and request an officially assigned network number. The commands discussed in this section make such close monitoring possible. Given the nature of each report, these are reasonable defaults, but they can be changed in the system cron settings.

[(Pro Oracle Database 10g RAC on Linux: Installation,

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To prepare the system for quotas, the first step is to drop the system to single user mode. The bus provides the electrical connection between the processor and its peripherals. CONF The syslog daemon logs any notable events on your local system. The other problem with the graphical login screen is that some X display managers offer reboot and shutdown as options to ordinary users. One way to select the proper language is to give the user an index page from which she chooses the desired language.

Linux Administration: A Beginners Guide, Sixth Edition 6th

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You can find here five chapters each from Google Map Hacks and BlackBerry Hacks. N drives [1] — Specifies which drives to clear partitions from. Their general form is: Because SSI directives look like comments, if SSI is improperly configured on the server, the browser ignores the contents. This file is not something for general consumption, but it’s very important. Understanding the organization, or layout, of the Red Hat Linux file system is one of the most important aspects of system administration.

Fedora 12 Installation Guide

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At this point, package installation is complete. Tripwire really comes into its own in the latter case, because an up-to-date Tripwire database can mean the difference between repairing some damage here and there, and tossing wholesale the entire contents of a file system. As we saw previously, syslog checks its /etc/rsyslog.conf file to determine the expected names and locations of the log files it should create. There are numerous graphical front-ends to get around the multitude of confusing command-line options, but if you're not doing anything too complex, command-line use is generally straightforward.

Red Hat Linux System Administration Handbook by Mark F.

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Since the server is always ON, the client machines can access the files and resources without caring whether a certain computer is ON. The server uses the key to decrypt the client’s response. As such, he administers a number of Debian Linux servers, manages the official Internet infrastructure (he has one of the oldest individual handles still in use by an original registrant at ARIN), and consults on hardware issues, software internals, networking problems, and system and network security.

LINUX Operating System success in a day:Beginners guide to

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For example, the Ethernet at GMU's Mathematics Department originally chose thick Ethernet because it is a long route that the cable must take so traffic will not be disrupted each time a host is added to the network. Then, ensure that each of these parameters are truly in effect by running the following command on both Oracle RAC nodes in the cluster: Most of the installation and configuration procedures in this section should be performed on both Oracle RAC nodes in the cluster! Registration includes a printed course manual, a Linux Foundation Certified Engineer exam registration with free retake, and access to LFS211 Linux Networking and Administration for 1 year.

Ubuntu Server for Small Business

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That's not because the manufacturers don't care about Linux but because drivers for most devices are already installed on your system as kernel modules. The IP: tunneling and IP: GRE tunnels over IP options have (empty), meaning that they can be built as modules by pressing m or built into the kernel by typing y or * (see Figure 17-34). Chapter 13: The Network Information System. Your /etc/hosts file should contain IP address to hostname mappings that follow this format: So that the lines look like this: Now that you’ve set up your DNS servers and hosts file, you need to tell your Linux server which method it should use first to look up hostnames.