step to mount LVM logical volumn sudo apt-get install lvm2 #This step may or may not be required. sudo pvscan…

install kubectl sudo apt-get update && sudo apt-get install -y apt-transport-https curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - echo…

why kubevirt or virtlet? both of Virtlet and KubeVirt address the needs of almost every development teams who have or…

try to connect to VM console virsh list virsh console ID (enter) if you cannot access to VM console, login…

#!/bin/sh # execute on jumphost # # default user per manufacturer # Dell : root/calvin # Oracle: root/changeme # HP…

#!/bin/bash # convert netmask to CIDR (Classless Inter-Domain Routing) or vice verse # mask2cidr () { # Assumes there's no…

fill disk blocks with zero or random values umount /dev/sdX dd if=/dev/zero of=/dev/sdX bs=1M dd if=/dev/urandom of=/dev/sdX bs=1M filling with…

WAN switching for static public IP cat wanSwitching-static.sh #!/bin/bash # # example values in case of d4's eth0 KERNEL_PORT_NAME="eth0" DPDK_PORT_NAME="dpdk0"…

prepare hugepage in /etc/default/grub or /etc/dpdk/dpdk.conf and reboot install required packages including libpcap-dev sudo apt-get install libpcap-dev download and build…

useful command for HW topology sudo apt install hwloc sudo lshw -class memory lstopo {file.txt | file.png | ...} check…