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Linux management and configuration

Puppet (configuration management)

Puppet is an open source systems management tool for centralizing and automating configuration management.
Optimize system performance with Linux cgroups

The Linux cgroups feature lets you make a profile to manage resources to keep your system under control.
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.
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.

Linux management and configuration

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Open source substitutions for Microsoft NLBS

Are you aware of any open source software that would do something similar to Microsoft NLBS for Red Hat Linux? Ask the Expert
Can Amanda or Rsync correct missed backup?

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Configure LSF in a Unix environment (Solaris and Linux)

Find out how to configure Load Sharing Facility (LSF) in Unix and Linux. Ask the Expert
Using Nagios with custom plugins

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How can I detect a PCI modem on Red Hat 9?

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Documenting traffic flow and control in a demilitarized zone

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Using CORBA as your client-server interface

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Issues with the scheduler in RHEL 2.6

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Is Nagios good for monitoring e-mail?

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Switching from commercial network management products to Nagios

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