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Gentoo Time synchronization with ntp daemon
Post date: May 4, 2005, 13:05 Category: Network Views: 63
Tutorial quote: The following instructions will install the ntpd program. After following the instructions below your system time will automatically be kept accurate by ntpd. Which will synchronize your computer's time with that kept by a time server out on the Internet.
Linux Chrooting Apache
Post date: April 12, 2005, 20:04 Category: Security Views: 49
Tutorial quote: The chroot daemon allows you to run a program and have it see a given directory as the root (/) directory. This effectively locks the process into its very own filesystem ("chroot jail") isolated from the real / filesystem. In this article we will look at how to install the Apache Web server in such an environment.
Unix+clones HOW TO: Setup RoundCube Webmail on Your Server
Post date: February 28, 2006, 02:02 Category: Software Views: 125
Tutorial quote: I recently heard about a new webmail client from my friend Justin, who’s infatuated with it. RoundCube, a “browser-based multilingual IMAP client with an application-like user interface,” is the latest and greatest webmail client.
Unix+clones Tunneling SSH over HTTP(S)
Post date: March 12, 2006, 04:03 Category: Network Views: 55
Tutorial quote: This document explains how to set up an Apache server and SSH client to allow tunneling SSH over HTTP(S). This can be useful on restricted networks that either firewall everything except HTTP traffic (tcp/80) or require users to use a local (HTTP) proxy.
Unix+clones Postfix performance tuning
Post date: May 21, 2005, 07:05 Category: Optimizing Views: 82
Tutorial quote: Postfix is fast out of the box, but like other packages, you can usually tune it to work even faster. Furthermore, there are situations where Postfix may not perform as well as you expected, whether because of hardware or software limitations on the server system or other adverse conditions, such as a big influx of spam or undeliverable mail. This article shows you how to find and analyze the most common performance problems.
Linux Upstream Provider Woes? Point the Ping of Blame
Post date: April 14, 2005, 08:04 Category: Network Views: 42
Tutorial quote: Your users are complaining that "the Internet is, like, all slow." Users are always complaining, but you're seeing a lot of timeouts when you check mail, surf the Web, or try to log in for remote administration. Or even worse, latency is so bad that you keep getting killed all to heck in your favorite gory violent online multi-player game, so you know there is a problem. But there a lot of potential bottlenecks between your PC and the outside world, like your Internet gateway, proxy server, firewall, Internet service provider, and so forth, so where do you begin?

One of the best and most versatile network tools you can have is a notebook PC running Linux. This lets you plug in anywhere to run tests and find out what is going on. Make it a nothing-to-lose box--don't keep data on it so you can wipe and reinstall the operating system as necessary, because you want to be able to run tests outside of firewalls. Don't run any services. You can put a minimal iptables firewall on it, as there is no point in being totally exposed, but keep it simple. (Use MondoRescue to make a system snapshot for fast restores.)
RedHat Choosing an I/O Scheduler for Red Hat Enterprise Linux 4
Post date: July 18, 2005, 18:07 Category: Benchmarks Views: 176
Tutorial quote: The Linux kernel, the core of the operating system, is responsible for controlling disk access by using kernel I/O scheduling. Red Hat Enterprise Linux 3 with a 2.4 kernel base uses a single, robust, general purpose I/O elevator. The 2.4 I/O scheduler has a reasonable number of tuning options by controlling the amount of time a request remains in an I/O queue before being serviced using the elvtune command. While Red Hat Enterprise Linux 3 offers most workloads excellent performance, it does not always provide the best I/O characteristics for the wide range of applications in use by Linux users these days. The I/O schedulers provided in Red Hat Enterprise Linux 4, embedded in the 2.6 kernel, have advanced the I/O capabilities of Linux significantly. With Red Hat Enterprise Linux 4, applications can now optimize the kernel I/O at boot time, by selecting one of four different I/O schedulers.
Linux Optimizing Linux filesystems
Post date: April 12, 2005, 03:04 Category: Benchmarks Views: 118
Tutorial quote: Last time we introduced a few common Linux filesystems and examined their features. If you've already installed Linux, your partitions are already set up and configured with particular filesystems, but you may decide you want to modify this configuration. What's the best way to begin?
Linux DOS Emulation Under Linux
Post date: May 1, 2005, 13:05 Category: Emulation Views: 71
Tutorial quote: Whether you need to run some legacy corporate application, or just want to play some of those old classic DOS games, it's easy to get going.

I've done this on a Slackware 9.1 Linux system with a 2.4.22 kernel, running KDE 3.1.4. The process should be very similar for most reasonably recent Linux distros.
Linux Building a GameCube Linux Kernel
Post date: January 23, 2006, 10:01 Category: System Views: 38
Tutorial quote: This guide explains briefly the necessary steps to produce a Linux kernel suitable for the GameCube, using a Linux PC.