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I’m a new fan of Nagios XI. The Core version is simply to complex and difficult to manage and I love to (KISS) keep it simple and stupid. A first try to install NagiosXI on Proxmox under KVM resulted in a performance disaster. (load of 40.x and I have no idea why) In general unless there are very good reasons for portability, security or snapshot features, I’m more a fan of Containers (OpenVZ or Zones for Solaris). They are simply more performant and don’t have that overhead KVM virtualization brings with. However one negative side-effect of Openvz is for example IPtables. IPtables under openVZ are a nightmare. When you know what you do, you secure the container from the Host and wont need IPtables on the CT. But my problem was that NagiosXI needs (kind of) Iptables for its automated install script. So I had to work around anbit to get it running on the CT and know what .. […]

Install ZFS Native on Kanotix / Debian Squeeze / Proxmox 2.1 This whole thing below is obsolete. I created a new post with up to date details for Debian 7.0 Wheezy Ok, Ok, I admit, I’m going really crazy now…. as I described here -> Linux: Install Proxmox Virtual Environment on Debian 6.0 Squeeze Distro (Kanopix) I have Proxmov Virtual Environment running on Kanotix Debian. I now spotted that I’m running slowly low of free disk space. I could mount space from my NAS via NFS-CIFS or ISCSI but that’s kind of too easy and for testing purpose the break to success ratio is too low 🙂 . And BTW I love ZFS. so I install it (cause I want to deduplicate and compress). Based on Proxmox …This is pretty straight forward and almost too easy too. Kanotix is using Debian and not ubuntu and certainly not the latest ubuntu so we need […]

Install Proxmox Virtual Environment on Debian 6.0 (Squeeze) system Problem: I have a server which I use for more things at the same time. It’s used as a MediaCenter connected to the TV, as a Monitoring server and now I want to run virtualisation on it as well since the box runs anyway pretty much the whole day. For the virtualisation I selected to use Proxmox since I consider it as one of the best vs easiest to manage in the open-source world. You can find more about Proxmox here Biggest Problem is that Proxmox is running on Debian and it runs on Debian 6.0 Squeeze (stable) only which is slightly outdated (not to mention ancient). So I had to reinstall the server using a Debian 6.0. But there are not many Distro’s out there still running on Debian 6.0. I found which has a release called Kanotix Hellfire 2012-05. […]

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