Patrick’s development blog

Using the OpenBSD package system

Posted in BSD by Patrick on June 15, 2009

The package system in OpenBSD consists of pre-compiled programs that can be managed with the pkg tool. The packages may not necessarily contain the same kind of security and realibility as the base system, but pkg is useful for installing “third party” software.

1. Create the environment variabel PKG_PATH with the value of the right directory to fetch the packages.
export PKG_PATH=ftp://ftp.openbsd.org/pub/OpenBSD/4.5/packages/i386/

2. Add this line into the startup file, ~/.profiles so we don’t have to export it every time we use pkg.

Installing a package
pkg_add -i firefox

Removing a package
pkg_delete firefox

Information about installed packages
pkg_info

Useful free software to optimize and secure your system

Posted in Security by Patrick on June 28, 2008

Here’s a list of useful programs in different categories. Most of these programs are for Windows, but some of them are also open source and works for Linux. I only list programs that are free. I might update this post over time.

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Mozilla Firefox
The web-browser Firefox, has optional add-ons that you can install which makes it possible to extends the browsers functionality. I’ve picked out three add-ons that I find very useful. They speed up the browser and adds more security.

NoScript
It blocks all Javascript, Java and other malicious code from sites you don’t trust. Ever since I installed this, i’ve never had any spywares on my XP computer at all. A most have for people who wants a secure browser. My favorite add-on.

AdBlock Plus
Get rid of all those annoying banners and ads on websites.

Flash Block
Blocks all flash animations on all websites. If you want to play a certain flash animation though, just click on it, that’s what I like most about this add-on.

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Security
Zonealarm Firewall – A free version of the popular firewall Zonealarm. This software also has program control and port stealthing for example.

AVG Anti-Virus Free Edition – Free anti-virus program, that is easy to use, provides high level of detection capability and doesn’t use so much system resources.

Ad-Aware 2008 – Scan for spywares, data-mining, advertising, and tracking components in general.

Spybot Search & Destroy – Spyware cleaner that also has real time protection.

TrueCrypt – Open Source encryption software. Can encrypt partitions, make virtual drives and encrypt harddrives completely.

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Optimize and cleaning software
JkDefrag – Free disk defragmenter program. Optimizes your harddrive.

CCleaner – System optimization tool which cleans registry and removes temporary files. It’s very fast.