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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 .. […]

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