This gist assumes:
You've probably heard of terms such as KVM and OpenVZ, but until now, large data center virtualization operations were beyond the reach of most individuals or small organizations. In addition, many individuals and organizations face challenges with data privacy relating to having personal or customer data in a public cloud. A relatively simple and inexpensive solution is to run your own private cloud infrastructure inside your firewall.
Proxmox Virtual Environment (PVE) is based on Kernel-based Virtual Machine (KVM) hypervisor and OpenVZ, a solution for container based virtualization. PVE is easy to install and configure. Using its wizard installation and configuration and web-based management interface and consoles, you can have an easy-to-use virtualization environment in under an hour even if you have little experience in virtualization. PVE is made by Proxmox Server Solutions GmbH is a privately held corporation based in Vienna, Austria.
Once installed and configured, you can choose from a variety of ea
| # Stop all containers | |
| docker stop `docker ps -qa` | |
| # Remove all containers | |
| docker rm `docker ps -qa` | |
| # Remove all images | |
| docker rmi -f `docker images -qa ` | |
| # Remove all volumes |
From this article you’ll learn how to measure an input/output performance of a file system on such devices as HDD, SSD, USB Flash Drive etc.
I’ll show how to test the read/write speed of a disk from the Linux command line using dd command.
I’ll also show how to install and use hdparm utility for measuring read speed of a disk on Linux Mint, Ubuntu, Debian, CentOS, RHEL.
Take the average result: To get the accurate read/write speed, you should repeat the below tests several times (usually 3-5) and take the average result.
| #!/bin/bash | |
| # Dynamically retrieves and add IPs from a list of domain names | |
| # Creates a cache folder with IP as filenames to know if they have been added previously | |
| # Manages both IPv4 and IPv6 rules. | |
| MAIN_INTERFACE=$(ip -4 route ls | grep default | grep -Po '(?<=dev )(\S+)' | head -1) | |
| THIS_DIR="$(cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd)" | |
| CACHE_DIR="$THIS_DIR/.ips" | |
| function is_ipv4() |