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BSD

Set Up PC-BSD v1.4 beta

Post date: September 1, 2007, 01:09 Category: Desktop Views: 6372 Comments
Tutorial quote: This article describes how to set up PC-BSD v1.4 beta. PC-BSD is released under the BSD license. PC-BSD is a desktop operating system based on FreeBSD. It uses KDE as its desktop environment.
BSD

Network-Attached Storage With FreeNAS

Post date: February 13, 2007, 19:02 Category: Installing Views: 8697 Comments
Tutorial quote: This tutorial shows how you can set up a network-attached storage server with FreeNAS. FreeNAS is based on the FreeBSD operating system and supports CIFS (samba), FTP, NFS, RSYNC, SSH, local user authentication, and software RAID (0, 1, 5). It comes with a powerful web interface and uses very little space on the hard drive - about 32MB.
BSD

Firewalling with OpenBSD's PF packet filter

Post date: November 27, 2006, 02:11 Category: Network Views: 7288 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.
BSD

Firewalling with OpenBSD's PF packet filter

Post date: April 19, 2005, 02:04 Category: Network Views: 6396 Comments
Tutorial quote: PF operates in a world which consists of packets, protocols, connections and ports.

Based on where a packet is coming from or where it's going, which protocol, connection of port it is designated for, PF is able to determine where to lead the packet, or decide if it is to be let through at all.

It's equally possible to direct network traffic based on packet contents, usually referred to as application level filtering, but this is not the kind of thing PF does. We will come back later to some cases where PF will hand off these kinds of tasks to other software, but first let us deal with some basics.

We've already mentioned the firewall concept. One important feature of PF and similar software, perhaps the most important feature, is that it is able to identify and block traffic which is you do not want to let into your local network or let out to the world outside. At some point the term 'firewall' was coined.
BSD

Managing Filesystems : fstab

Post date: April 15, 2005, 23:04 Category: System Views: 6484 Comments
Tutorial quote: Understanding how the BSD filesystem manages disk space is critical to successfully managing a BSD server or workstation. However, this topic is generally overlooked since it is rarely used outside of installation and upgrades. It is also a very simple topic and most people assume you understand how it all works.

This article gives a quick synopsis on filesystem layout and tries to briefly explain how to understand /etc/fstab. The fstab(5) man pages, while good, do little to teach the basics to new sysadmins.
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