How to Create a Docker Image | Linux.com


In the previous article, we learned about how to get started with Docker on Linux, macOS, and Windows. In this article, we will get a basic understanding of creating Docker images. There are prebuilt images available on DockerHub that you can use for your own project, and you can publish your own image there.
We are going to use prebuilt images to get the base Linux subsystem, as it’s a lot of work to build one from scratch. You […] Continue Reading…

Install Webmin on Ubuntu 17.10 (Artful Aardvark) Server

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Webmin is a web-based interface for system administration for Unix. Using any modern web browser, you can setup user accounts, Apache, DNS, file sharing and much more. Webmin removes the need to manually edit Unix configuration files like /etc/passwd, and lets you manage a system from the console or remotely.Install webmin on ubuntu 17.10
Edit the /etc/apt/sources.list file using the following command
sudo nano /etc/apt/sources.list
Add the following line
deb https://download.webmin.com/download/repository sarge contrib
Save and exit the file
Add the GPG Key
wget http://www.webmin.com/jcameron-key.asc
sudo […] Continue Reading…

Install Latest version of node.js and npm on Ubuntu 17.10 Server

Node.js® is a JavaScript runtime built on Chrome’s V8 JavaScript engine. Node.js uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. Node.js’ package ecosystem, npm, is the largest ecosystem of open source libraries in the world.
npm is the package manager for JavaScript and the world’s largest software registry. Discover packages of reusable code — and assemble them in powerful new ways.
Install node.js on Ubuntu 17.10 server
From the terminal run the following command
curl -sL https://deb.nodesource.com/setup_9.x | […] Continue Reading…

4 Tools for Network Snooping on Linux | Linux.com


Computer networking data has to be exposed, because packets can’t travel blindfolded, so join us as we use whois, dig, nmcli, and nmap to snoop networks.
Do be polite and don’t run nmap on any network but your own, because probing other people’s networks can be interpreted as a hostile act.
Thin and Thick whois
You may have noticed that our beloved old whois command doesn’t seem to give the level of detail that it used to. Check out this example […] Continue Reading…

Hybrid Cloud: 4 Top Use Cases


In the early days of cloud computing, experts talked a lot about the relative merits of public and private clouds and which would be the better choice for enterprises. These days, most enterprises aren’t deciding between public or private clouds; they have both. Hybrid and multi-cloud environments have become the norm.

However, setting up a true hybrid cloud, with integration between a public cloud and private cloud environment, can be very challenging.

“If the end user does not have specific […] Continue Reading…