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OpenBSD

Using OpenBSD

Post date: April 26, 2006, 14:04 Category: Miscellaneous Views: 8498 Comments
Tutorial quote: Many people responded to the call for OpenBSD and OpenSSH donations by purchasing an OpenBSD CD set. Those CDs are beginning to arrive in the mail, and when they do, how are you going to use them? If you're a software enthusiast who has never used OpenBSD before, you might enjoy installing it by yourself and figuring it out as you go. If, however, you're looking for a more practical approach to using OpenBSD as a desktop or server operating system, here's a guide to get you started.
OpenBSD

Hardening OpenBSD Internet Servers

Post date: April 11, 2006, 22:04 Category: Security Views: 9236 Comments
Tutorial quote: This tutorial on how-to harden or improve security on OpenBSD Internet servers includes sections that apply to any UNIX system. Hardening is making a computer more secure by removing unneeded functions, restricting access and tracking changes and processes. It was revised to cover OpenBSD 3.0 on Dec. 15, 2001 and includes an overview of the 2.9 to 3.0 changes. A new page on priorities ranks the value of the techniques presented here. Familiarity with UNIX system administration but not OpenBSD is assumed.
OpenBSD

Apache - Serving up the Web

Post date: April 11, 2006, 22:04 Category: Network Views: 7245 Comments
Tutorial quote: The Apache Web Server is installed as part of the OpenBSD base system. This guide will help you configure the web server: (Apache 1.3.12 is released with OpenBSD 2.7 and 1.3.9 with OpenBSD 2.6)

To see how configurable the Apache/OpenBSD combination is we also look at allowing administrators to remotely review the server's status, we setup the system so we allow users on our system to have their own personal web-space. Of course, for the security counscious you probably want to turn some of these things off after you get things up and running.
OpenBSD

Quickly installing OpenBSD 3.3

Post date: May 1, 2005, 17:05 Category: Installing Views: 5684 Comments
Tutorial quote: This article goes through the steps of an OpenBSD 3.3 installation. The installer is a text-based interface and, in most cases, is quick and easy to complete.
OpenBSD

Creating secure wireless access points with OpenBSD and OpenVPN

Post date: December 13, 2005, 18:12 Category: Network Views: 7853 Comments
Tutorial quote: You know how insecure 802.11x wireless networks are. In this article we'll create an OpenBSD-based secure wireless access point that prevents unauthorized access and encrypts every packet using a VPN tunnel. OpenBSD is one of the most secure operating systems available, is easy to use, and includes almost everything you need for this project in the base installation.
OpenBSD

Rebuilding the OpenBSD kernel

Post date: April 24, 2005, 20:04 Category: System Views: 4063 Comments
Tutorial quote: Users who want their OpenBSD machine to perform specific functions or need additional device drivers might want to customize their kernel. In other OS's, like some types of Linux, it is very popular to rebuild the kernel because the default is so bloated. For most users, the default OpenBSD kernel is sufficient; however, you should still apply kernel patches, which will require rebuilding and installing a fresh kernel.
OpenBSD

OpenBSD 101 - Tutorial for Beginners

Post date: September 20, 2006, 20:09 Category: System Views: 10609 Comments
Tutorial quote: Some of the information in this tutorial can be found in the OpenBSD FAQ section. Though here the the FAQ has been trimmed down and presented in an easier to read format.
OpenBSD

Failover Firewalls with OpenBSD and CARP

Post date: April 28, 2005, 02:04 Category: Network Views: 7580 Comments
Tutorial quote: Firewalls are a required component in commercial and residential computer networks. For many installations, the firewall is a single point of failure between client systems and external resources. It can also become a liability when hardware or applications fail, leaving potential customers unable to reach your servers. A properly designed and executed failover configuration for your primary firewall will address many of these concerns. This article introduces a proven method for installing redundant stateful firewalls using native OpenBSD features.
BSD

Firewalling with OpenBSD's PF packet filter

Post date: November 27, 2006, 02:11 Category: Network Views: 7342 Comments
Tutorial quote: The tutorial is about firewalls and related functions, with examples from real life with the OpenBSD project's PF (Packet Filter). PF offers firewalling, NAT, traffic control and bandwidth management in a single, flexible and sysadmin friendly system. Targeted at the seasoned or aspiring network administrator, this half day tutorial manuscript will give you some ideas about how to control your network traffic the way you want - keeping some things outside your network, directing traffic to specified hosts or services, and of course, giving spammers a hard time.

Previously hosted at http:/www.bgnett.no/~peter/pf/, but moved to its present location due to some odd technical difficulties at bgnett.no.
Unix+clones

Using MySQL to benchmark OS performance

Post date: April 12, 2005, 07:04 Category: Benchmarks Views: 3462 Comments
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
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