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Unix+clones Easy Automated Snapshot-Style Backups with Linux and Rsync
Post date: January 31, 2006, 19:01 Category: Software Views: 27
Tutorial quote: This document describes a method for generating automatic rotating "snapshot"-style backups on a Unix-based system, with specific examples drawn from the author's GNU/Linux experience. Snapshot backups are a feature of some high-end industrial file servers; they create the illusion of multiple, full backups per day without the space or processing overhead. All of the snapshots are read-only, and are accessible directly by users as special system directories. It is often possible to store several hours, days, and even weeks' worth of snapshots with slightly more than 2x storage. This method, while not as space-efficient as some of the proprietary technologies (which, using special copy-on-write filesystems, can operate on slightly more than 1x storage), makes use of only standard file utilities and the common rsync program, which is installed by default on most Linux distributions. Properly configured, the method can also protect against hard disk failure, root compromises, or even back up a network of heterogeneous desktops automatically.
Fedora+Core The IPv6 Internet: Connect Today with Linux
Post date: April 12, 2005, 23:04 Category: Network Views: 86
Tutorial quote: IPv6 is a key technology and a long-term solution to build scalable, reliable, manageable, secure, and high-performance IP networks. In this article, I demonstrated how to configure a Linux machine running Fedora Core 1 to support IPv6 and connect it to the IPv6 Internet using the Freenet6 service.
Unix+clones Build Your Own IM Server with Jabber
Post date: June 26, 2005, 18:06 Category: Network Views: 81
Tutorial quote: Instant messaging is a great business communications tool. For example, here at Enterprise Networking Planet the staff and writers all work in their pajamas at home, at far-flung points all over the globe. ENP's crusty editor-with-a-heart-of-gold Perry White lives in a villa in the South of France. I send in my columns from a sailboat currently anchored at Raratonga. Sure, we can exchange emails, but there are times when a live exchange is better.
Linux iptables: The Linux Firewall Administration Program
Post date: November 29, 2005, 15:11 Category: Network Views: 86
Tutorial quote: This chapter covers the iptables firewall administration program used to build a Netfilter firewall. For those of you who are familiar with or accustomed to the older ipfwadm and ipchains programs used with the IPFW technology, iptables will look very similar to those programs. However, it is much more feature-rich and flexible, and it is very different on subtle levels.
SuSe How to set up smart package manager on SUSE LINUX 10.0
Post date: October 29, 2005, 20:10 Category: System Views: 142
Tutorial quote: Quote from the tutorial: The advantage of smartpm is, that, besides the ability to use mirrors it is able to use different repository structures. So I was able to use the apt-repository structure which provides more channels then the actual yum structure [...], and so I was able to build up a package management with update channels which is capable of using and choosing mirrors in a similar way as yum is.
Unix+clones Comparing MySQL performance
Post date: April 12, 2005, 03:04 Category: Benchmarks Views: 57
Tutorial quote: With the introduction of the 2.6 Linux kernel, FreeBSD-5-STABLE, Solaris 10, and now NetBSD 2.0, you might be wondering which of them offers superior database performance. In my previous article, I discussed the tools I chose to test these venerable operating systems and the methodology by which they were tested. The result is this MySQL performance comparison between OpenBSD 3.6; NetBSD 2.0; FreeBSD 5.3 and 4.10; Solaris Express (build 69); and Linux 2.4 and 2.6 (Gentoo-based). Read on for the results.
Unix+clones Have a Bash With This Linux Shell
Post date: April 15, 2005, 01:04 Category: Programming Views: 46
Tutorial quote: Any Linux administrator who wishes to remain sane relies heavily on scripting to automate routine tasks, customize jobs, and build the plumbing that connects the different utilities that make a Linux system run smoothly. The Linux world is chock-full of scripting languages: Perl, Python, PHP, Scheme, Tcl, Tk, Ruby, Forth, Smalltalk, Eiffel, and doubtless many more. To get the column started, we'll look at shell scripting with Bash, and scripting with Python and Perl.
Linux Building an LDAP Server on Linux, Part 1
Post date: April 15, 2005, 13:04 Category: Network Views: 48
Tutorial quote: Your network is growing in size and complexity. It's taking on a life of its own, spreading and growing and absorbing everything in its path. You're tearing your hair out trying to keep track, and your users have somehow discovered your secret phone number and are pestering you with endless questions and demands--where do I find this; I don't want to keep track of a dozen different passwords; nothing works like it should.

Of several possible solutions, consider two: 1) find a new hiding place, or 2) implement an LDAP server. While finding a new hiding place might sound ideal, it's an option we're going to have to save for a future article. This series will instead explain what LDAP is good for, detail how to build an LDAP server, and cover what you can do with it.
Gentoo Build your own Gentoo rescue LiveCD and USBStick
Post date: June 20, 2005, 00:06 Category: Miscellaneous Views: 153
Tutorial quote: I've written this how-to after trying to find a boot medium for my home gateway machine which could be used for system rescues and even installing Gentoo. Why not use the standard Gentoo Live CD you ask? Well my gateway machine is one of those small, silent and cool running mini-itx machines (http://www.mini-itx.com) and has no CDROM or floppy drive. I needed some way of getting Gentoo on there and some way of easily rescuing it when the need arises. The good news is that these VIA mini-tix machines are USB bootable and I much preferred the idea of having a little USB drive/stick that I could push into any USB bootable machine and boot into Linux rather than having to set up a PXE networked boot environment (which is also supported).
Unix+clones Using MySQL to benchmark OS performance
Post date: April 12, 2005, 03:04 Category: Benchmarks Views: 93
Tutorial quote: It seems to be an exciting time for *nix operating systems, with a number of them recently releasing new versions that bring the addition of expanded features and claims of improved performance. If you're using GNU/Linux, OpenBSD, NetBSD, FreeBSD, or Solaris as a database server, you've probably recently considered an upgrade or switch to another OS in that list due to marketing hype and hearsay. This article will show you how to benchmark operating system performance using MySQL on these OSes so you can find out for yourself if you're missing out. While this may not necessarily be indicative of overall system performance or overall database application performance, it will tell you specifically how well MySQL performs on your platform.

The following operating systems were used for the comparison testing:
- FreeBSD 4.11
- FreeBSD 5.3
- NetBSD 2.0
- Linux 2.6
- Linux 2.4
- Solaris 10 x86 (build 69)
- OpenBSD 3.6