Virtualization - openterprise.it

KVM - How to permit HTTP traffic from guest VM to KVM host with firewalld

Published on 2023-05-27 Author admin

How to permit traffic from KVM guest to KVM host with firewalld, for instance to access HTTP server running on KVM host form guest VMs. #permit traffic on firewall firewall-cmd --add-service=http --zone=libvirt firewall-cmd --add-service=http --zone=libvirt --permanent #verify firewall-cmd --list-all-zones

Running nested VMware ESXi 8.0 host under KVM hypervisor

Published on 2022-12-23 Author admin

Prerequisites: hardware support for VT-x enabled nested virtualization for KVM Use below command to create KVM virtual machine containing VMware ESXi: virt-install --virt-type=kvm --name=vmware-esxi8 \ --ram 8192 --vcpus=4 \ --virt-type=kvm --hvm \ --cdrom /home/pawel/ISO/VMware/VMware-VMvisor-Installer-8.0-20513097.x86_64.iso \ --network network:default,model=vmxnet3 \ --graphics vnc --video qxl \ --disk pool=default,size=32,sparse=true,bus=sata,format=qcow2 \ --boot cdrom,hd --noautoconsole --force \ --cpu host-passthrough --os-variant linux2020… Continue reading Running nested VMware ESXi 8.0 host under KVM hypervisor →

Running nested VMware ESXi 7.0 host under KVM hypervisor

Published on 2022-05-15 Author admin

Prerequisites: hardware support for VT-x enabled nested virtualization for KVM Use below command to create KVM virtual machine containing VMware ESXi: virt-install --virt-type=kvm --name=vmware-esxi7 \ --ram 4096 --vcpus=4 \ --virt-type=kvm --hvm \ --cdrom /home/pawel/ISO/VMware/VMware-VMvisor-Installer-7.0U3d-19482537.x86_64.iso \ --network network:default,model=vmxnet3 \ --graphics vnc --video qxl \ --disk pool=default,size=32,sparse=true,bus=sata,format=qcow2 \ --boot cdrom,hd --noautoconsole --force \ --cpu host-passthrough --os-variant linux2020… Continue reading Running nested VMware ESXi 7.0 host under KVM hypervisor →

Enable KSM (Kernel Same-page Merging) on Fedora

Published on 2019-03-28 Author admin

By default KSM is not installed on Fedora. To install it: dnf install ksmtuned Start service: systemctl start ksm systemctl start ksmtuned.service enable KSM: echo 1 > /sys/kernel/mm/ksm/run checkk KSM status: cat /sys/kernel/mm/ksm/run check number of shared memory pages: cat /sys/kernel/mm/ksm/pages_shared

Running nested VMware ESXi host under KVM hypervisor

Published on 2019-03-25 Author admin

Prerequisites: hardware support for VT-x enabled nested virtualization for KVM Use below command to create KVM virtual machine containing VMware ESXi: virt-install --virt-type=kvm --name=vmware-esxi1 \ --ram 4096 --vcpus=4 \ --virt-type=kvm --hvm \ --cdrom /home/pawel/ISO/VMware/VMware-VMvisor-Installer-6.7.0.update01-10302608.x86_64.iso \ --network network:default,model=e1000 \ --graphics vnc --video qxl \ --disk pool=default,size=128,sparse=true,bus=ide,format=qcow2 \ --boot cdrom,hd --noautoconsole --force \ --cpu host-passthrough I was… Continue reading Running nested VMware ESXi host under KVM hypervisor →