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    How to reach maximum performance and reliability in KVM + Docker

    I have installed KVM with 30 Ubuntu (in future will be more) on Ubuntu and finally that bunch of VM working fine. But my next test in this server is adding to this machine huge amount of docker images - more than 50. And I thinking, but no answer what is right way to do this. First way is place...
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    How to repair kernel version

    I install Ubuntu 20.10 in cloud provider and receive # uname -r 4.15.0-60-generic # ls -ls /boot total 147484 248 -rw-r--r-- 1 root root 248258 Jan 18 17:01 config-5.8.0-41-generic 248 -rw-r--r-- 1 root root 248258 Feb 5 03:41 config-5.8.0-43-generic 4 drwxr-xr-x 4 root root...
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    No network in cloud Ubuntu 20.10 after installation

    Hello, I have issue with network in Ubuntu 20.10, this is cloud service and I can not select packages during installation. Cloud service prepare for me 01-netcfg.yaml file for networking with my IP addr and that it. nmcli is absent, networkd daemon not working, ntewotk-manager missing...
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    How to define volume in QEMU/KVM disk pool

    I try to define volume to VM but failed. The same result I receive in GUI. # virsh pool-list Name State Autostart ------------------------------------------- default active yes dsk-b active yes dsk-c...
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    Disk writing speed under KVM

    In physical machines I have Ubuntu 16.04 with QEMU/KVM, virtual machines Ubuntu 16.04 too. Speed of disk writing under KVM extremely low, installation process doing more than day and time on time never finished at all. And speed of second machines 100 times less than fist. But this is brand new...
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    [SOLVED] How to tune KVM hypervisor (virtual switch has VLAN)

    Hello, I want to tune KVM, but need help to configure networking. I have main server address (without VLAN) and have connected Virtual Switch with VLAN (to the same server interface). All IPs in my server is white (external), main IP has various restriction from UFV. All my Virtual Machines...
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    How to configure firewalld (or polarproxy) as reverse proxy for one domain

    Hi, I want to configure firewalld (sorry no need additional proxy as apache, nginx or squid, I need configure redirect by firewalld or my existing reversy proxy). I have running reverse proxy polarproxy in machine 192.168.0.106 (192.168.0.1/24). I want to redirect all inbound request to domain...
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