Category Archives: Networking & System Administration

Advanced SUSE Linux Enterprise Server Administration

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These are created by applying a "sticky" bit: chmod +s. When completed, click [OK] on the "Edit LVM Volume Group: VolGroup00" dialog. So, the only option enabled for all of the directories under the server root (/) is the FollowSymLinks option. So much for the practical reasons for and against upgrading to a new kernel. The destination address is 128.17.112.21. IP attempts to find a route for the 128.17.112 network in the routing tables, but none exists, so it selects the default route through papaya. papaya receives the packet and looks up the destination address in its own routing tables.

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Linux Mint 17: Desktops and Administration by Richard

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Linux defaults to automatically negotiating the speed and duplex of it's NIC automatically with that of the switch to which it is attached. Some companies offer paid support for their Linux distributions, but the underlying software is still free to download and install. In addition, the host portion of the IP address may be subdivided to allow for a subnetwork address. cut -f2 -d” “) do echo -e “$FS\n--------” Chapter 19: Using Scripts to Automate Tasks du -x --max-depth=1 --exclude=/dev* $FS

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Linux Thin Client Networks Design and Deployment: A quick

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This is the cousin of the phone jack connector and looks real similar with the exception that the RJ-45 is bigger. How about playing a game with your son over your home network? A router configuration can support multicast and basic IP routing using the "route" command. It is a piece of bait, with a hook inside it. Open this file up in the text editor of your choice. At the command line, enter the command mail, followed by the recipient’s e-mail address: mail 2. Begin by verifying the zone information in /etc/named.conf.

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Kali Linux Cookbook

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There seems to be (as of November 2007) a new trend in targeting Linux for consumers. If any of these methods work, you should see a page resembling Figure 15-2. 375 Figure 15-2: Apache’s test page 11. Human nature being what it is, you can predict with a great deal of probability that left to their own devices your users gravitate towards passwords related to the eternal themes of sex, love, and money. Dynamic IP addresses are what most Internet service providers (ISPs) use.

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Linux administration for LPI101 certification

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The third line (options ne io=0x300 irq=10) tells the ne driver at which io address and irq interrupt it will find the ISA card at. If a file is moved across file systems, mv copies the file over first and then removes it from the old location. Linux is a computer operating system assembled under the model of free and open source software development and distribution. This section briefly explains the FHS and its relevance to proper system administration. Accessing Apple printers The first order of business is of course to get Netatalk configured and to run atalkd.

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Linux: A Network Solution for Your Office

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This chapter offered numerous tips and techniques for overcoming commonly encountered problems installing, configuring, and using Red Hat Linux. N Is anyone charged with the job of testing that generator? It probably is, because the Red Hat Linux installation program installs Sendmail. This tab enables you to pick a time zone by simply clicking your geographic location. You can now close the YaST Control Center by selecting Close.

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Linux+ Guide to Linux Certification (Test Preparation)

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Author of more than 20 database books, Burleson was chosen by Oracle Press to write five authorized editions, including Oracle Linux Administration Handbook and High-Performance SQL tuning. First, identify the ports and services NFS uses so that you know where to apply the packet filters. Figure 9-12: The Server Status page shows the current status of the Samba daemons. It's an easy way to get a feel for RHEL, and it's a solid server operating system in its own right.

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Pro Linux System Administration (Expert's Voice in Open

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For instance filesystems and user quotas both deal with filesystems. This option is set in the /etc/ldap.conf file. information is stored. With over 25,000 terabytes of data (increasing daily), Usenet is the world's largest storage network, where you can find everything you want. The default Red Hat configuration disables guest access, so this field is empty, too. You see the status of the download as each package is retrieved and an All Finished when all packages have been retrieved.

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SUSE LINUX Enterprise Server 9 Administrator's Handbook

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N dev — This directory contains files with information about devices, either configuration files. There are other variables you can use here like from="" to allow only from a specific host. These services became the industry standard for accessing "shared drives" on UNIX computers. If %idle is high yet the load average as reported by uptime is significant (say, over 5), this suggests either an I/O problem or memory saturation (see the section titled “Monitoring Memory Utilization” for tips on how to identify memory saturation) — the CPU is idle because jobs are sitting in the run queue waiting for I/O to complete or for memory to be swapped back in from disk.

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Fedora 15 Deployment Guide

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For long files, it is sometimes convenient to use the commands head and tail that display just the beginning and the end of the file. This method is, admittedly, time consuming, and of course, cannot (or should not) be automated, but it produces highly random passwords that prove very difficult for any password cracker program to solve in a timely manner, that is, before the attacker gives up and moves on to other, arguably more fruitful targets. UNIX is costly as compared to Linux; the midrange UNIX servers are priced in between $25,000 and $249,999 (including hardware ).

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