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Howto's

[FreeBSD] Creating a VPN using PPTP

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Met deze howto kan je een VPN opzetten via een PPTP verbinding..

[quote]I’m working for a US based company which has an office here in Ottawa. I also work from home‚ as do two other employees here. Until today‚ I’ve been using a VPN from my W2K box‚ which is what I usually use from day to day when accessing the office network. But this morning I found a need to access the office network using one of my FreeBSD boxes. This article shows how I set that VPN up using a pptp client. I put this client on my gateway box which enabled my entire network to access the VPN. Which is a good thing.
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[url=http://www.freebsddiary.org/pptp.php]Het hele artikel[/url]

[OpenBSD] Securing Small Networks Part 3

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Deze howto gaat net als deel 1 en 2 over het beveiligen van je netwerk met OpenBSD als router / firewall. Deze keer bespreekt de schrijver nogmaals packet filter PF.

[quote]That question pops up quite frequently in mail I receive and in conversations with my students. The answer lies in the difference between how pf looks at packets and interfaces and how we view them. Unlike the administrator writing the rules‚ pf knows nothing about the routes that packets have to follow. Its only job is to check packets arriving or leaving network interfaces on the machine it runs on; all it does is check their type‚ flags‚ shape‚ state‚ origin‚ and destination. Inbound packets are matched against in rules and outbound packets are matched against out rules. That’s the whole magic.
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[url=http://www.onlamp.com/pub/a/bsd/2002/04/25/securing.html]Het hele artikel[/url]

[FreeBSD] Securing Wireless Networks with IPSEC

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Met deze howto kan je je draadloze netwerk met IPSEC beveiligen maar je kan het ook voor je gewone netwerk gebruiken.

[quote]Though this article mainly deals with problems inherent to wireless networks‚ the principals apply equally well to wired networks. Also‚ though FreeBSD is the OS referenced‚ this may work equally well with other flavors of BSD . The version of FreeBSD used was 4.5-release.
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[url=http://www.bsdtoday.com/2002/April/Features671.html]Het hele artikel[/url]

[FreeBSD] Connecting to IPv6

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Met deze howto kan je alvast het IPv6 protocol gaan gebruiken…. zodat je op de toekomst bent voorbereid.

[quote]You may be lucky enough to have an ISP that offers a connection to the 6Bone‚ but chances are you don’t. In case of the latter‚ what you need is tunneling. Tunneling is sending one protocol inside another over a network. In this case‚ your computer creates an IPv6 packet‚ then it wraps it in an IPv4 packet. Then it is sent to a tunnel endpoint on the Internet. This endpoint unwraps the IPv4 packet and sends the IPv6 packet onto the 6Bone. Then it also wraps up data that the other computer responds with and sends it back to yours‚ where it will be unwrapped and examined. This method is very common for putting one kind of network on another.
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[url=http://www.linuxorbit.com/modules.php?op=modload&name=Sections&file=index&req=viewarticle&artid=524]Het hele artikel[/url]

[FreeBSD] A Multimedia Tutorial For FreeBSD

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Met dit artikel wordt je op weg geholpen met de multimedia mogelijkheden van FreeBSD.

[quote]As I have spent more and more time checking out the Linux and Unix forums on this site‚ I have realized the volume of dedicated Unix enthusiasts. Realizing not many articles on Exam Notes apply directly to them‚ I have decided to dedicate an entire article to FreeBSD‚ which is a Unix derivative developed at the Berkley Campus of the University of California.

In the old days‚ FreeBSD didn’t offer much along the lines of Sound support but that has all changed. FreeBSD now can provide sound and multimedia support as good as‚ or better than‚ and Windows system. In this article‚ I’m going to explain how you can:
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[url=http://www.examnotes.net/?s=c2ac4e7a9d6f40c0e040f48e3634bae2&counter=491&ind=122]Het hele artikel[/url]

[OpenBSD] Securing Small Networks Part 2

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Deze howto gaat net als deel 1 over het beveiligen van je netwerk met OpenBSD als router / firewall. Deze keer bespreekt de schrijver de nieuwe packet filter PF.

[quote]As you can see‚ the names of the configuration files have changed as well: packet filtering rules are now stored in the pf.conf file located in the /etc directory. The network address translation rules are stored in the nat.conf file located in the same directory. When pfctl complains about syntax errors‚ use the -v option to display the rules as they are processed by pfctl. For example‚ when the packet filtering rules contain errors‚ use pfctl –v –R /etc/pf.conf | less to browse the output and locate lines with errors; then edit the configuration file and try uploading the new rules again.
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[url=http://www.onlamp.com/pub/a/bsd/2002/04/11/securing.html]Het hele artikel[/url]

[FreeBSD] Configure Access Point for Wireless Network

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Met deze howto kan je van je ouwe pc of laptop‚ met FreeBSD‚ een toegangspunt maken voor een draadloos netwerk.

[quote]This article describes how to configure a PC running FreeBSD to serve as an access point (AP) for your wireless network. This FreeBSD access point does not need to be a server or desktop machine. Indeed‚ many people recommend using an old laptop. You don’t need much processing power either; a 386 or 486 will do. Thanks to FreeBSD’s excellent installation program‚ you don’t even need a working monitor — just use the serial port instead. A laptop doesn’t require a PCI- or ISA-to-PCMCIA adapter‚ and already has a built-in backup power supply. Also‚ long cable runs to an external antenna drop the signal output power significantly‚ and laptops can often be put closer to the antenna‚ in places a desktop would be hard pressed to fit.
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[url=http://www.samag.com/documents/s=7121/sam0205a/sam0205a.htm]Het hele artikel[/url]

[FreeBSD] Recovering and Debugging

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Dit is deel 2 van System Panic, een artikel van [url=http://www.onlamp.com]ONLamp.com[/url], welke beschrijft hoe je je kan voorbereiden op een crash.

[quote]Preparing for a crash immediately after you install a system is an excellent way to reduce stress. When your computer panics, would you rather have all the crash information at your fingertips, or would you prefer frantically reading the documentation and trying to set up the debugger? Last time, we discussed building a debugging kernel and setting up your system to save a panic after a crash. Let’s hope you’ll never need any of this. If you do suffer a crash, however, here’s how to get some useful information out of it.
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[url=http://www.onlamp.com/pub/a/bsd/2002/04/04/Big_Scary_Daemons.html]Het hele artikel[/url]

[OpenBSD] How to setup Multiple SSL Virtual Hosts on Apache

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Deze howto laat zien hoe je meerdere virtuale SSL hosts kan opzetten in Apache onder OpenBSD 3.0

[quote]First off I assume you are running version 3.0 -release of OpenBSD. Other versions should work just fine however. I also assume you are familiar with various aspects of configuring Apache and OpenBSD. The good news is‚ OpenBSD includes SSL support for Apache by default‚ making SSL a snap to install.
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[url=http://www.incyte-studios.com/ssl.htm]Hier is de howto[/url]