Oct
31
I have been getting several e-mails in this month wanting to know my
suggestions and tips on what the best way is to backup your Firefox
install.
FEBE (Firefox Environment Backup Extension)
Oct
31
How to enable extra repositories in Ubuntu 7.10 and get cool stuff
Posted by suvi under Ubuntu
Have you ever glanced over at someone else using Ubuntu 7.10 and
said to yourself “woah, they’ve got all the COOL stuff!” No? Er…
neither have I. But, if you would like to get some cool stuff, here’s
how you can enable extra repositories, like the non-free and Multiverse
areas.
First, you’ve got to open Synaptic, the package manager for Ubuntu. Go to System-> Administration-> Synaptic Package Manager. You’ll be prompted for your password.
Once Synaptic is open, go to Settings at the top and then Repositories.
Oct
31
AppArmor is one way to protect your assets on your Ubuntu Gutsy system.
Oct
31
Why Non-Technical Users Might Find Shell Scripting Useful
Posted by suvi under Programming
You know, I’ve never found any real use for a shell script.
Recently, I found an actual reason to write one for moving and
converting audio files using a few less keystrokes.
Oct
30
Tidy up your filesystem with FSlint
Posted by suvi under Tricks
Over time, a filesystem accumulates a lot of useless items. FSlint
is a nifty little tool that helps you clean your filesystem by pointing
out junk in the form of empty directories, corrupt symlinks, files with
bad names, duplicate and temp files, and more. However, its usefulness
is marred by a virtually total lack of documentation and a GUI that
takes some getting used to.
Oct
30
Tips and tricks: What are access privileges and how can I set them?
Posted by suvi under Tricks
Privileges define the access level of the user, or what operations the
user is allowed to do and the sections of the Command Center which the
user is allowed to see. Every person entry in Command Center has some
sort of privileges set. There are two major categories of privileges: administrator and user. Within the user privileges, there are three different access levels: monitor only, role-based, and view configuration. All these are set in the user’s profile.
Oct
30
Listening to and recording audio and video streams with MPlayer
Posted by suvi under Multimedia
Most streaming audio
and video on the Internet is disseminated in proprietary formats such
as RM, RAM, WMV, and ASF. Fortunately, the open source application MPlayer can play and even record streams in almost any format.
Oct
30
Linux: HowTo: Emergency Reboot a Remote Machine
Posted by suvi under Tricks
Sometimes the machine you’re working on has a little oops. Maybe the
reboot command has hung and the system will not shutdown or a kernel
panic has occurred and although you still have shell access, there is
little more you can do with the machine. The solution is simple: you
need to hard reboot the machine. But you’re in Phoenix and the machine
is in L.A. Like any good system administrator, you have the machine
hooked up to an IP-KVM (or serial over IP, if the machine is headless),
but the magic SysRq keys won’t send properly. So what’s a sysadmin to
do?
Oct
30
Remote PC Repair, Part 1: The Warranty Alternative
Posted by suvi under Other
Consumers and small-office and home-office workers often
buy their computers from online stores or discount warehouses. They
often reject add-on support packages at checkout to keep the purchase
price low. If the computer breaks within 60 or 90 days, the
manufacturer will handle the repairs, they reason. However, when the
initial warranty period expires and the computer misbehaves or
malfunctions, who to call for service often becomes a daunting — and
costly — challenge. Big companies outsource maintenance and repairs or
have an in-house tech staff.
Oct
30
Setting up a search engine for your website
Posted by suvi under Tricks
If you run a website and one people to be able to search it then
installing a local spider to crawl your site and create a small
database of your content which users may search is a relatively
straightforward thing to do. Here we’ll look at using mnoGoSearch -
which is packaged for Debian and simple to install.
The mnogosearch packages come in three different flavors:
Oct
30
This guide shows how you can set up a two node, high-availability
HTTP cluster with heartbeat on CentOS. Both nodes use the Apache web
server to serve the same content.
Pre-Configuration Requirements
- Assign hostname node01 to primary node with IP address 172.16.4.80 to eth0.
- Assign hostname node02 to slave node with IP address 172.16.4.81.
Note: on node01
uname -n
Oct
30
Google’s Linux software repositories make it easier to download and
stay up-to-date with current releases of Google Linux applications.
Please choose one of the guides below to help configure your system to
use these repositories.
First you need to edit /etc/apt/sources.list file
sudo vi /etc/apt/sources.list
add the following line
# Google software repository
Oct
30
This tutorial is Copyright
(c) 2007 by Justin Refice. It is
derived from various guides and original material, listed at the end of
the document.
You are free to use this tutorial under the Creative Commons license
2.5 or any later version.
Oct
30
GIMP tricks: Liquid rescaling by example
Posted by suvi under Graphics
Have you ever taken a picture which would be just great only if you could remove that strange unwanted object that showed up in the middle of nowhere and now kills the whole effect? Or perhaps you just want to get rid of your ex-girlfriend and keep the photo with a fantastic landscape alone? Whatever your secret plans are, GIMP Liquid rescale plugin is there for you. Just use it!
Oct
30
Let’s assume you have a web application that runs of a cluster of
Apache nodes. Each node generates its own Apache access log from which
you can generate page view statistics with tools such as Webalizer or AWStats.
Obviously you do not want to have page view statistics for each Apache
node, but overall page view statistics. To achieve this, we must merge
the access logs from each node into one overall access log that we can