virtual-machine
How to safely run user-supplied Javascript code inside the browser?
After much consideration and with the help of other posters in this thread (thank you so much for your help!), I found a first bunch of answers to my questions. I am re-writing my answer here though, because it summarizes the concepts and also gives you some actual code to experiment with. Generally, there are …
In Vagrant which is better out of halt and suspend?
tl;dr Use vagrant halt when you want to power off your machine, use vagrant suspend when you want to hibernate your machine. From the Vagrant docs: vagrant suspend A suspend effectively saves the exact point-in-time state of the machine, so that when you resume it later, it begins running immediately from that point, rather than …
Sign virtual box modules (vboxdrv, vboxnetflt, vboxnetadp, vboxpci) Centos 8 [closed]
After some research, I found the solution. Solution 1 : disable secure boot. Solution 2 : 1- Install mokutil package sudo dnf update sudo dnf install mokutil 2- Create RSA key under new folder. sudo -i mkdir /root/signed-modules cd /root/signed-modules openssl req -new -x509 -newkey rsa:2048 -keyout MOK.priv -outform DER -out MOK.der -nodes -days 36500 …
Docker Processes Shown on Host Process List
This seems to be a common misconception about Docker being lightweight virtual machine” that is why some might expect similar behavior as VirtualBox or VMWare but just faster. Docker does not use virtualization, so all processes run by the native host kernel just isolated from each other. Non-root user cannot kill processes inside container, but …
Login credentials of Ubuntu Cloud server image
18.04 setup step-by-step with cloud-localds In short you need on the host: sudo apt-get install cloud-image-utils cat >user-data <<EOF #cloud-config password: asdfqwer chpasswd: { expire: False } ssh_pwauth: True EOF cloud-localds user-data.img user-data # user-data.img MUST come after the rootfs. qemu-system-x86_64 \ -drive file=ubuntu-18.04-server-cloudimg-amd64.img,format=qcow2 \ -drive file=user-data.img,format=raw \ -m 1G … and now you can …
Unable to connect to Vagrant private network from host
Based on the output provided, the box has 2 network interfaces, 1 is the default NAT and the other private – ask you said. The reason why you are not able to access the web site hosted within the VM thru the private interface: it could be that host eth0 or wlan0 IP address is …
What exactly do shadow page tables (for VMMs) do?
Shadow page tables are used by the hypervisor to keep track of the state in which the guest “thinks” its page tables should be. The guest can’t be allowed access to the hardware page tables because then it would essentially have control of the machine. So, the hypervisor keeps the “real” mappings (guest virtual -> …
Vagrant cannot forward the specified ports on this VM
In case of ssh port, Vagrant solves port collisions by itself: ==> ubuntu64: Fixed port collision for 22 => 2222. Now on port 2200. However, you still can create unavoidable collision by: Creating first vagrant env (it will get port 2222 for ssh) Suspend that env (vagrant suspend) Create second vagrant env (it will again …
virt-manager guest resize not working
Make sure guest resizing is enabled in virt-manager: Menu View -> Scale Display -> Auto resize VM with window (Checked) Make sure your have a spice agent on your guest (the virtual machine) https://www.spice-space.org/download.html#guest ‘spice-vdagent’ on linux ‘spice-guest-tools’ on windows How I figured this out, I found a setting in “spicy” that I assumed had …