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Identity management without Microsoft restrictions
The Higgins Project is an open source effort to create a standard for managing and defining digital identity. Here, a security expert discusses the challenges involved in integrating Higgins with M...
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SUSE security: Forgotten passwords, AppArmor
A security expert describes how to harden your openSUSE 10.2 installation and talks about open source security tools.
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SUSE Linux administration: How to set up a cluster file
Setting up OCFS2 as a shared file system in a cluster environment helps when multiple nodes have to write to the same file system concurrently. Learn how to do it with SLES10.
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OpenOffice 2.0: Handling Mac, Microsoft migration and d
The author of "OpenOffice.org 2 Guidebooks" offers some hints on getting started with migrating from Microsoft Works to OpenOffice's Base, globally formatting labels and more.
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Troubleshooting, finding lost files in Linux servers
Just because a server crashes doesn't mean your data is lost forever. Find out how to retrieve your data from damaged Linux server environments where ext3 is used.
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Mainframe Linux vs. Unix
Discover how Linux on the mainframe -- in this case, the IBM System z Server -- compares with Unix, in terms of its availability, features and performance.
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Migrating to Novell's SUSE Linux: Tips and tricks
In this case study on the Metropolitan Bank Group's migration to Novell's SUSE Linux, an expert offers conclusions as to what makes a migration successful.
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Linux/Unix commands: How to get copy, conversion power
Learn how to use dd, a Linux command for handling convert-and-copy tasks. An expert shows how to clone your hard drive, create a backup of your Master Backup Record and increase your swap space.
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Using YUM in RHEL5 for RPM systems
An expert discusses using YUM (Yellowdog Update Modifier) in Red Hat Enterprise Linux 5 for updating, installing, removing and maintaining RPM packages.
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Easing SUSE Server administration from the command line
Sander van Vugt, author of "The Definitive Guide to SUSE Linux Enterprise Server" expands upon the uses of SUID and SGID, how to make device sharing easier and ways to manage files that live in mor...
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Filling in app security gaps
Matt Fisher, senior security engineer for SPI Dynamics, discusses challenges IT managers face when dealing with application security and gives advice on how to reduce security risks.
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Looking ahead to Nagios 3.0
James Turnbull, author of "Pro Nagios 2.0," describes the new features in the upcoming Nagios 3.0 enterprise monitoring program.
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Nagios Looking Glass: Getting started
Nagios Looking Glass (NLG) allows users to access Nagios data on a Web server via an HTTP connection. Learn how to set up the NLG client-server model in this tip.
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Enterprise redundancy using VRRP
Get started using Virtual Router Redundancy Protocol (VRRP), a standard used in enterprise environments where routing redundancy is necessary for host stations. VRRP can provide additional availabi...
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Managing events with Nagios Event Broker
Use modules with Nagios Event Broker, a server event output and integration tool, for receiving events and executing code on them. In this tip, you'll learn how NEB functions, what modules are ava...
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RHEL4 administration tools: ifconfig, arp, tcpdump and
Master network integration in your existing RHEL4 infrastructure with the use of command-line tools like ifconfig, arp, tcpdump and iptraf.
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Setting up a network with Red Hat Enterprise Linux 4.0
Learn the basics of Linux networking tasks, like backing up configuration files, and progress to spoofing MAC addresses and subinterfacing using Red Hat Enterprise Linux 4.0.
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Running Windows as a VM on Linux with VMware Server
If you don't want to spend money on an expensive Citrix setup for running Windows and Linux, then try running Windows as a virtual machine (VM) on Linux with VMware Server.
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Qpsmtpd: MTA integration and testing
Qpsmtpd is a Perl-based smtpd daemon used for spam prevention. In the final installment, we'll learn how to integrate qpsmtpd with the mail transfer agent and debug the setup.
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Qpsmtpd: Configuration and plug-ins
Qpsmtpd is a Perl-based smtpd daemon used for spam prevention. In the second part of this series, we will find out about different plugs-ins and how to configure qpsmtpd.
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Optimize system performance with Linux cgroups
The Linux cgroups feature lets you make a profile to manage resources to keep your system under control.
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Correct a GRUB error in short order
A GRUB error will stop a Linux server cold, but following these steps should get you back on track.
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Setting up a mirrored Linux DRBD configuration
Administrators can use the distributed replicated block device (DRBD) in Linux to set up basic data redundancy to connect the storage of multiple servers.
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Tune the Linux Ext4 file system for optimal performance
While Ext4 by default works fine for most people, follow these tips to tweak your servers to squeeze out even more speed.