Whenever I tried to connect to my fileserver home, Windows 7 asked for my username / password. Even though I checked the “Remember my password” box. Today I got enough annoyed by it to find out how to “fix” that problem. If you go to Control Panel –> User Accounts –> Manage your credentials, you will find here under Windows Credentials the server name of the fileserver. If you click on it you will...

So finally we are out of IPv4 addresses. And according to some guess work the first RIR out of IP’s will be the one of Europe: Ripe. I wanted to get a bit more familiar with IPv6, home I have a Linux router and my provider (Ziggo) doesn’t support IPv6 (yet). In this article I will describe how to get IPv6 working at home, without a tunnel broker or without an ISP that supports IPv6 Get yourself an IPv6 address on Linux IPv6 has...

On our shared hosting server I checked the /var/log/maillog, and what I saw there made me think that we are spamming. Or better, one of the shared hosting customers has a mail form which is being abused. Default maillog of Postfix doesn’t give me away who it is, just a from=<apache@www.loeniks.nl> and the recipient. But it doesn’t tell me who is spamming. So I decided to enable SMTP AUTH, because postfix does log as who...

As said in my previous post, we needed 2 extra “features” which are not provided by the freeware version of XenServer. One of them is give KVM to customers for their own VM, which is explained in my previous post. And the second feature was we need to monitor traffic of each VM. In this post I will explain how to do that. Bandwidth monitor Our second problem a little bit complexer was to monitor the traffic. If you type...

With Loeniks we are using XenServer (freeware version) to sell Virtual Servers to customers. But we found out there are some limitations to XenServer which we fixed ourselves. The 2 main concerns where: 1. Customer A needs to connect through VNC to his VM, and only his VM. 2. Our current provider, ProServe gives us an overview of how much each ip address used on a daily base. With our new provider we only get a total amount and we need to...