Virtual Machines and Containers offer virtualization technology for creating scalable solutions. Virtualization allows to quickly build and deploy a large number of hosts or containers in a very short time and saves time and money as compared to installing and deploying physical servers.
Virtual machine ( VM ) have been around for few years from now and containers are picking up as new alternative to VM. KVM, Xen, Hyper-V, AND ESXi are some of the popular hypervisor technologies for creating and managing VMs. Linux container technology have been available for more than 10 years in the form of LXC but Docker containers have gained popularity in the last few years. Beside Docker other container technologies are Solaris Containers, AIX Workload Partitions and FreeBSD jails
Here are top five difference between VMs and Containers.
netstat is a command line utility in Unix, Linux and Unix like systems to show information about
- network connections,
- routing tables,
- interface statistics,
- mas-querade connections
- multicast memberships
By default, netstat displays a list of open sockets of all configured address families , tcp , udp etc.
netstat provide very extensive network details and here are the top netstat usage with different options to get you the just the information you need.
Do you know what cyber security threats you face each time your computer connects to a global network? Do you know how the newer cyber security threats work, and what risk do you put your private data at?
Today we’re going to talk a bit about what’s going on in cyber security industry right now, and what you can do to protect your devices from modern hackers.
Dockets allows you to create containers which share same OS and resources but provide isolated environment to run different applications in different containers at the same time. It is the new hot technology which which has seen a huge growth and adaptation by many companies around the world.
If you are interested in docker and try it out , here is the good news , Play-with-docker is providing Free Docker Training for Beginners Intermediate & Advanced users . The tutorials provided are from docker and the members of docker community.
vi editor , pronounced as Vee Iee editor is the default text editor in Unix and Linux distribution. For new learners it may be difficult to get used to vi editor commands. To make this easy here is the vi editor cheat sheet in PDF format which can be printed, shared and used for ready reference.
vi editor Cheat Sheet in PDF format.
Here is an earlier article which discus vi editor in details