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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.
Search and replace on steroids: Do more with sed

These tips can help administrators help themselves through advanced text editing with the UNIX Stream Editor (sed) utility.
British ISP deploys open source virtualization

JT Global is marching to the beat of its own drummer with open source software, including Ubuntu virtual machines, ConVirt virtualization management software, and a unique approach to VM clustering.

Linux administration tools

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GNU Make and Sun Make in Solaris-to-Linux porting

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What tools can I use to simplify porting apps from Windows to Linux?

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Calling another stored procedure's temp table

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Monitoring processes in Solaris 8

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Is LDAP the same in Linux as Active Directory is in Windows?

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How do I add an LDAP address book to Thunderbird?

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Is there a Linux tool to filter e-mail for spam and viruses?

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Different Linux shells and the login process

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Learning Guide: Linux Tools

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How do you make Perl properly kill a subprocess?

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