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HowTos

Create a Customized Live Linux CD or Bootable USB Thumb Drive Using Knoppix

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HowTos

Earlier this year, I was asked to find a bootable CD that would allow PCs in a special purpose lab, many of which had bad hard drives, to access our Citrix environment. Basically, we wanted to turn these PCs into thin clients to extend their life. I had been experimenting with Knoppix and decided it was time to try customizing my own Knoppix CD for use in the lab.

Cacti On CentOS 4.4 Including The Plug-in Architecture

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This guide will step you through the process of setting up a functional Cacti installation on CentOS 4.4 including the Plug-in Architecture, which will allow you to expand your monitoring solution.

Public Key Encryption and Digital Signatures

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If you are concerned about the privacy of your electronic documents and would like to make sure that only people who are authorized by you are actually able to read them, you have the option to use encryption.

How can I change the default size of an inode when I create an ext2/ext3 filesystem?

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It is possible to define a non-standard sized inode by using the mke2fs tool with an undocumented option, -I. The size of the inode has to be a power of two and between the size of EXT2_GOOD_OLD_INODE_SIZE (128 bytes) and size of blocks in bytes. One reason for doing this could be that user is going to use extended attributes.

Removing files from /tmp at shut down

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Your /tmp directory in Linux is a handy place for your OS to stick files that it may need at the moment but won’t need down the road. While this is great for the OS (and you if you want to use it yourself feel free) it can cause a bit of clutter as files start building up.

Put your OpenSSH server in SSHjail

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Jailing is a mechanism to virtually change a system's root directory. By employing this method, administrators can isolate services so that they cannot access the real filesystem structure. You should run unsecured and sensitive network services in a chroot jail, because if a hacker can break into a vulnerable service he could exploit your whole system.

Getting more out of less

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Anyone who knows Linux and other similar operating systems like Unix and BSD should be familiar with the paging program called "more". They should also be familiar with its successor which offers much more functionality but is called "less". Less offers much more than simple forward and backward paging.

Set up a perfect rPath Linux development platform for making your own custom-flavor Linux

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The combination of rPath Builder and VMWare Player is a perfect tool for quick web development and distribution, and a quick way to play with Linux right on your desktop.

Lenny for everyone!!!!

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Well Debian 4.0 was released on April 9 and its been a couple of weeks, so the testing mirrors (Lenny) should be stable. So sit back, download the "netinst" CD image, and have ago at it.

Ubuntu tutorial - set a new resolution

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Most of the time, in Ubuntu, you can easily change the screen resolution by going to Preferences > Screen Resolution. However, sometimes that doesn’t work, and sometimes the resolution that you want isn’t on the list.

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