I’m back!

Posted in Latest news on April 23rd, 2012 by yokke

It’s been a while since I created a blog post, due various reasons I had no time at all to blog or even describe what I’ve been doing.

The good news, I’m back from now on you’ll find my blogs on http://www.linux-answered.com/

Update Update Update :)

Posted in Latest news on May 25th, 2011 by yokke

third post of the day!

Some updates:

  • From now on you can follow me on twitter https://twitter.com/#!/trIx0r (I’ll soon add the twitter button)
  • http://www.yorkim.be is reachable over IPv6 and IPv4, if you like to test IPv6 go to http://ipv6.yorkim.be, normally when you surf to yorkim.be and you can route IPv6 this will be preferred above IPv4
  • My portfolio is slowly coming online. This will be written in Dutch and no translation will be available. (we have Google translate for that).
  • Working on a IPv6 review
  • Working on a Astaro Beta 8.2 Review (they delayed the new release so the review will be delayed as well)

That’s it for now :) if you have any questions send me an email on info@yorkim.be

IPv6 the successor of IPv4

Posted in Latest news on May 25th, 2011 by yokke

As you might have noticed, lately there is a lot to do about the new IPv6 protocol. On 20 may tweakers.net announced that RIP has started with the last 10percent of IPv4 addresses.

Change is necessary, let there be no doubt about that. But I do understand that the world isn’t going to change over night from IPv4 to IPv6. So why this small post? From now on yorkim.be is reachable over IPv4 and IPv6.

Leaked Fedora 15!

Posted in Fedora, Latest news on May 22nd, 2011 by yokke

A fast post to let you know that Fedora 15 releases today, for those who can’t wait like me, you can download a torrent from the Fedora 15 website.

It seems like the torrent from fedora 15 is available on http://torrent.fedoraproject.org/torrents/

[ ] Fedora-15-i686-Live-Desktop.torrent 21-May-2011 06:08 44K
[ ] Fedora-15-i686-Live-KDE.torrent 21-May-2011 06:08 54K
[ ] Fedora-15-source-DVD.torrent 21-May-2011 06:08 421K
[ ] Fedora-15-x86_64-DVD.torrent 21-May-2011 06:08 268K
[ ] Fedora-15-x86_64-Live-Desktop.torrent 21-May-2011 06:08 45K
[ ] Fedora-15-x86_64-Live-KDE.torrent 21-May-2011 06:08 54K


I can confirm that this is the new fedora 15 ^^ screens from the installation bellow

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Trapster moderator

Posted in Latest news on May 13th, 2011 by yokke

I’m proud to announce that from today, actually the day before yesterday, I’m a Trapster moderator for Belgium. The next weeks and month I’ll spend some time on fixing Belgium and reporting traps.

What it Trapster?

Trapster is a free application for mobile phones and some GPS devices. This application knows every speed camera and other dangerous “traps”. Users can inform each other on where the traps currently are. So whats the task of the moderator? Well the moderators needs to make sure that everything is being reported correctly, abusive users needs to be banned.

In Belgium we haven’t that many users yet. But that’s going to be my task. From now on I’m going to report all the mobile speed cameras as fast as possible. Doing this I hope that Trapster will finally lift off in Belgium. In the next three months me and some friends will drive around in Belgium to see or all the traps are still valid.

I’ve you like to help us contact me or Trapster :)

For more information http://www.trapster.com/

Astaro and Sophos a wonderful marriage?

Posted in Latest news, Network Security on May 12th, 2011 by yokke

It’s only been a few days since my review on Astaro Secure Gateway  and it’s time for an other update. Apparently Astaro and Sophos will merge together. Today I received an email from Jan Hichert to announce the news.


Several months ago Sophos approached Astaro with the idea to bring the two companies together and merge the award-winning Sophos Endpoint Security with the award-winning Astaro Security Gateway in order to bring security to the next level. And we are proud to announce that this will indeed happen, as we have now signed a definitive agreement to be acquired by Sophos.

End of Quote:

My biggest concern was the free home license, but this will remain free

  • More Features: Sophos owns great technology in many areas like NAC, DLP, Patch Management, Vulnerability Scanning and more. We now have access to and can integrate these technologies into our Security Gateway, further improving on our ability to protect your entire network.
  • Best Malware Engines: Sophos has one of the best malware engines available and their continuous problem free updates through SophosLabs will make our product the best in its class.
  • Better Performance: We want to further improve the performance of the UTM functions, but in the past were often limited as the vendors we license technology from were not always cooperative. With direct access to the experts at Sophos, we are able to offer tighter integration and significantly improve performance.
  • Better Support: As a growing company, scaling high quality support is always a challenge, with Sophos’ expertise and processes in 24×7 support, combined with our support experts, we can deliver a more responsive and better support than ever.
  • Free Licenses Will Stay: The Astaro customer and user community has been an important part of our success in the past and will be in the future. Therefore we do not plan to change the home and essential firewall licenses.
  • Focused Management Team: Astaro will continue within Sophos and will be run by the same management team and employees as today. We will strengthen our strategy on offering complete solutions and our focus will continue to be on solving end-user security issues.

participate in the discussion on the Astaro User Bulletin Board


Astaro 8.2 Secure Web Gateway

Posted in Latest news, Network Security on May 9th, 2011 by yokke

As promised, a short review on the Astaro 8.2 Secure Web Gateway. Before you continue reading, this is a review not a tutorial on how to install this proxy / firewall appliance. The setup of this device (the this is now working but doesn’t do anything useful kinda setup) took me only 15 min. After that I configured and tested for hours and probably days. To be honest I’m still discovering new features every day.

I want to make clear that this software is free for home purposes! Also you can have a trail version for 30 days if you like to test it in a business environment.   I’ve got the Astaro 8.2 running virtually on a Debian server. I use KVM to manage my virtual machines. Currently I’m experimenting with the OpenQRM platform to manage my private “cloud” (for the record, it’s failing)

  • 2x 2.2 Ghz
  • 1 GB of ram
  • 2 Ethernet cards (100mbit)
  • 150 GB disk (this is too big ^^ but whatever)

Continue reading “Astaro 8.2 Secure Web Gateway” »

New layout & Updates

Posted in Latest news on March 24th, 2011 by yokke


As you might have noticed, I changed the layout of the blog. The main reason is very simple, Internet Explorer messed up. . . .

I don’t really know or this layout is good so any feedback is welcome.


The next couple of days you may notice some updates. I’m going to make some new categories on the website. These categories will go about my portfolio at the end of my graduating year. That’s also the reason why I’m  making those categories in Dutch.

Access your server from the outside world with a dynamic IP-addres

Posted in Debian, English tutorials, Latest news on March 8th, 2011 by yokke

Difference between a static and a dynamic IP

An IP address is used to communicate between computers. When a server has a static IP this will never change unless someone decides to. This IP is manually entered in the computer or server.An example of who uses a static IP is a web server. Every domain name has a web server, every public web server has an static IP.  For example www.google.com has the static IP this IP will never change unless Google decides to move the web server to an other location. Because it isn’t possible to learn every IP-address on the internet we invented DNS (Domain Name System). How DNS works I’ll explain in one of my following tutorials for now just remember that DNS will resolve a domain name to the IP of the server.

What are the advantages and disadvantages of a static IP distribution


  • You can learn the IP
  • You can host a web server


  • You need to configure an IP on each computer
  • You need to remember which IP-addresses are already used in your network

What are the advantages and disadvantages of Dynamic IP distribution

90% of the computers use a dynamic IP. This IP is distributed by a DHCP server.


  • You don’t have to configure an IP manually
  • You can use Dynamic Domain Named Services to find your computer


  • You need an DHCP server
  • You need to configure reserved addresses for printers etc
  • You don’t now which IP belongs to which computer unless you use DNS

So how do I solve my problem when my ISP gives me a dynamic IP and I want to contact my personal server from the world wide web?

Well, I’m going to explain this for my own ISP (also the router settings, this can be different on your router).

Continue reading “Access your server from the outside world with a dynamic IP-addres” »

Easy backup method for a Linux server

Posted in Debian, English tutorials, Latest news on February 20th, 2011 by yokke

Do I need backup?

Off course you need to backup your data! If you don’t have backups, you don’t have data security!

Depending on the value of your data you will need to make more backups or keep them longer or whatever. You should always ask yourself the question what if I lose all my data? Which data is extremely important.

You can make a backup of various data, for example:

  • The operating system
  • The storage server (RAID 5 = NO BACKUP!)
  • Mail server
  • SQL server
  • Web server

When you lose a server or its data you should be able to restore your data in a few hours. You can’t make it to lose all your data. When you are working in a professional environment you will notice that there is a backup plan (if not create one!). This plan indicates how often backups should be made and where they are stored.

When you make a backup never save this on the same disk as the original disk. If you do this, in case of a disk failure you will lose all your data + all your backup data. Therefor its important to have a backup disk or a backup server.

Backup is very important but whats even more important is the restore procedure. In case of a failure you will rely on your backups and you need to restore everything.

You should test if your backups work, test if they still work after you restored them. At least once each year you should test if your backup & recovery plan is working. By testing it, you will be familiar with the procedure and its problems. You can also indicate the time it takes to be up & running again. (Your management will demand answers when things go wrong, be prepared!)

Continue reading “Easy backup method for a Linux server” »