Tutorials

Inspecting disk IO performance with fio

  Storage performance has failed to keep up with that of other major components of computer systems. Hard disks have gotten larger, but their...
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Recompile your kernel for a perfect fit

Most distributions provide a "one-size-fits-all" kernel, compiled with the most generic options, so everybody can use it. If you have an Athlon XP...
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Transfer files securely with SFTP

  File Transfer Protocol (FTP) was once the most widely used protocol for transferring files between computers. However, because FTP sends...
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Advanced SSH security tips and tricks

The SSH server configuration file is located in /etc/ssh/sshd_conf. You need to restart the SSH service after every change you make to that file in...
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Handling RAR and 7-Zip archives in Linux

  The RAR and 7-Zip file compression formats originated on Windows, so support for them on Linux is not as automatic as it is for old Unix...
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Vim tips: Using tabs

  Before Vim 7.0 was released last May, I usually had six or seven xterms or Konsole windows open, each with a single Vim session in which I was...
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SELinux: Comprehensive security at the price of usability

The benefit of SELinux is twofold. First, it replaces the user-based model with a policy-centric model. Every action, like running an application...
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A survey of Linux PDF viewers

  Portable Document Format, designed in the early 1990s by Adobe Systems, is slowly replacing PostScript as the preferred format for saving and...
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Quick and dirty Samba setup

Most current Linux distributions, including Slackware 11, have Samba already installed and running after the system boots. This article assumes that...
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How to bridge networks with OpenVPN

For this setup I'll assume that you have two networks, A and B, in different locations, both connected to the Internet with broadband. At each...
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