libvirt virsh troubleshooting PXE VM


Things to check for PXE DHCP issues.

* Check for a DHCP helper on the source L3 interface

* Check the KVM host routing. PXE/DHCP to server routing must be in place

* Check L3 interface info, no duplicate IPs, correct mask, static routes, bonding for mgmt

* Check virtual bridging

brctl show – check for MAC address and interface

if no MAC address, run ifconfig virbr0, add the MAC to the XML, destroy the network and restart it

virsh net-edit default
virsh net-destroy default
virsh net-start default

* Check VM XML

virsh dumpxml

* Check network settings vs ovs-vsctl list – add any missing ports

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Confidence with the CLI

Sourcefire vs Palo Alto UTM Appliances

Unified threat from Sourcefire and Palo Alto Solutions


Version 4.10 from Sourcefire was a stable, robust, competent piece of software. The detection engines performed their duties as expected and IPS/IDS functionality worked as expected.


Vendor Sites

Juniper Networks
F5 Networks
Arista Networks

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