links for 2009-01-21

This guide explains how you can install and use KVM for creating and running virtual machines on an Ubuntu 8.10 server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM).

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rtorrent is a BitTorrent client for ncurses, using the libtorrent library. The client and library is written in C++ with emphasis on speed and efficiency, while delivering equivalent features to those found in GUI based clients in an ncurses client.

In computer storage, logical volume management or LVM is a method of allocating space on mass storage devices that is more flexible than conventional partitioning schemes. In particular, a volume manager can concatenate, stripe together or otherwise combine partitions into larger virtual ones that can be resized or moved, possibly while it is being used.

This HOWTO describes the "new-style" RAID present in the 2.4 and 2.6 kernel series only. It does not describe the "old-style" RAID functionality present in 2.0 and 2.2 kernels.

There are ways to limit the number of user processes in a system. These limits can protect you mainly from your own mistakes. If a remote attacker is able to trigger a fork bomb in your system, you probably have a more serious problem than simply the lack of this limit.