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Linux

Sawing Linux Logs with Simple Tools

Post date: April 14, 2005, 12:04 Category: Security Views: 2688 Comments
Tutorial quote: So there you are with all of your Linux servers humming along happily. You have tested, tweaked, and configured until they are performing at their peak of perfection. Users are hardly whining at all. Life is good. You may relax and indulge in some nice, relaxing rounds of TuxKart. After all, you earned it.

Except for one little remaining chore: monitoring your log files. [insert horrible alarming music of your choice here.] You're conscientious, so you know you can't just ignore the logs until there's a problem, especially for public services like Web and mail. Somewhere up in the pointy-haired suites, they may even be plotting to require you to track and analyze all sorts of server statistics.

Not to worry, for there are many ways to implement data reduction, which is what log parsing is all about. You want to slice and dice your logs to present only the data you're interested in viewing. Unless you wish to devote your entire life to manually analyzing log files. Even if you only pay attention to logfiles when you're debugging a problem, having some tools to weed out the noise is helpful.
Debian

Splitting lighttpd Logs With vlogger And Creating Statistics With Webalizer

Post date: January 31, 2008, 13:01 Category: Miscellaneous Views: 3180 Comments
Tutorial quote: Vlogger is a little tool with which you can write lighttpd logs broken down by virtual hosts and days. With vlogger, we need to put just one accesslog.filename directive into our global lighttpd configuration, and it will write access logs for each virtual host and day. Therefore, you do not have to split lighttpd's overall access log into access logs for each virtual host each day, and you do not have to configure lighttpd to write one access log per virtual host (which could make you run out of file descriptors very fast). At the end of this tutorial I will show you how to use webalizer to create statistics from the lighttpd access logs.
Linux

Splitting Apache Logs With vlogger

Post date: June 17, 2007, 22:06 Category: Software Views: 3314 Comments
Tutorial quote: Vlogger is a little tool with which you can write Apache logs broken down by virtual hosts and days. With vlogger, we need to put just one CustomLog directive into our global Apache configuration, and it will write access logs for each virtual host and day. Therefore, you do not have to split Apache's overall access log into access logs for each virtual host each day, and you do not have to configure Apache to write one access log per virtual host (which could make you run out of file descriptors very fast).
Linux

Easy Linux Network Backup

Post date: April 12, 2005, 23:04 Category: Network Views: 2759 Comments
Tutorial quote: If you use Linux, you already have access to extremely powerful tools for creating custom backup solutions. The solutions in this article can help you perform simple to more advanced and secure network backups using open source tools that are part of nearly every Linux distribution.
Unix+clones

How To Look Like A UNIX Guru

Post date: October 30, 2006, 02:10 Category: Miscellaneous Views: 5641 Comments
Tutorial quote: UNIX is an extremely popular platform for deploying server software partly because of its security and stability, but also because it has a rich set of command line and scripting tools. Programmers use these tools for manipulating the file system, processing log files, and generally automating as much as possible.

If you want to be a serious server developer, you will need to have a certain facility with a number of UNIX tools; about 15. You will start to see similarities among them, particularly regular expressions, and soon you will feel very comfortable. Combining the simple commands, you can build very powerful tools very quickly--much faster than you could build the equivalent functionality in C or Java, for example.

This lecture takes you through the basic commands and then shows you how to combine them in simple patterns or idioms to provide sophisticated functionality like histogramming. This lecture assumes you know what a shell is and that you have some basic familiarity with UNIX.
Linux

How To Set Up VMware Tools On Various Linux Distributions

Post date: October 2, 2007, 07:10 Category: Miscellaneous Views: 7942 Comments
Tutorial quote: This document explains how to set up the VMware Tools in the following guest operating systems: Ubuntu 7.04, Fedora 7, PCLinuxOS 2007 and Debian Etch. Installing VMware Tools in your guest operating systems will help maximize performance, provide mouse synchronization and copy & paste functionality. This article also shows a way of making VMware Tools start automatically when you start a guest operating system.
Unix+clones

Using network transfer protocols

Post date: April 15, 2005, 18:04 Category: Network Views: 2133 Comments
Tutorial quote: Let's face it, most of us are in a rut when it comes to moving our files around. We learned how to use a simple FTP client years ago, and maybe even updated to a GUI FTP client when we were feeling particularly adventurous. There are actually a wealth of tools available for transferring files, and some of them perform automation functions that can easily assist your business in building site mirrors, synchronizing directory contents, and more.

Keep in mind that for many of the tools covered here, there's only really room to skim through their features. Some, such as wget and rsync, are full of useful capabilities for those brave enough to read their man pages and experiment.
Unix+clones

How to Use GIMP for Photo and Image Editing

Post date: April 16, 2005, 00:04 Category: Software Views: 2512 Comments
Tutorial quote: In today's hands-on tutorial, you will learn how to apply The GIMP's powerful layer and pattern tools to put a frame or border around a digital photo or digital image by editing a photograph in our digital darkroom. It's a simple application of what you already have learned in our Gimp tutorial series about using the Gimp's layer and pattern tools.
Debian

Install open-vm-tools on Debian 4.0 (Etch)

Post date: September 29, 2008, 06:09 Category: Software Views: 3368 Comments
Tutorial quote: VMware Inc. released an OpenSource version of their VMware-Tools, called open-vm-tools. While they’re quite easy to install on Gentoo (emerge open-vm-tools), it’s not that easy having them installed on a Debian Etch (4.0) if you want to go the proper way.
SuSe

aMSN - opensource MSN messenger client for openSUSE

Post date: September 16, 2008, 22:09 Category: Desktop Views: 5431 Comments
Tutorial quote: aMSN is a free open source MSN Messenger clone for Windows,Linux,Unix & Mac with features like offline messaging, voice clips, picture display, custom emoticons, webcam support, full speed file transfer, chat logs etc
Web-based applications and online marketing solutions - LumoLink