Nagios Support Forum

I am trying to setup the Microsoft VM 64-bit Nagios Network Analyzer, and I am unable to get network connectivity. When the VM boots up, it says "Device eth0 does not seem to be present, delaying initialization." I have seen posts about this error on other CentOS forums, and it appears to be an issue with clones in CentOS. The issue is caused by the VM storing the mac address of the initial VM, and then it conflicting with the new mac address in the clone. I have tried to edit this entry in /etc/udev/rules.d/70-persistent-net.rules, but it tells me "Permission denied" even though I am logged in as root. I have also tried deleting this file and hoping it would repopulate, but that did now work either. I re-downloaded the NagiosNA VM again, and have a clean install of it, but am still getting the same issue.

Any help would be great. I am new to Linux and CentOS, so lots of details will be very helpful.

There should be a VM setting in your network section to randomize/refresh the MAC address.

Thank you for the quick reply. I did not see a way to randomize the MAC address, just a way for using dynamic, or setting a static MAC. I ended up removing the network adapter, and recreating it. After doing that and setting the IP, I was able to bring eth0 up.

Thanks again, you can consider this topic solved