Phantomjs is a scriptable, headless browser. It can be essential help in automated testing of web services, it can generate screenshots of the page it is visiting, effectively print the traffic while browsing a page, just to name a few of it's features. Phantomjs can be scripted in JavaScript, so we don't need to learn yet another language is we are familiar with it. Sadly, it's development is suspended at the moment, but the last stable release is available for download.

In this tutorial we will install phantomjs on RHEL 8 / CentOS 8, and run one of the examples shipped with the package to see our tool working.

In this tutorial you will learn:
  • How to download phantomjs package
  • How to extract and place the binary on the path
  • How to run an example script with phantomjs

Compass is an open-source CSS authoring framework that can compile .css stylesheet files from .sass files as they are written, thus making the life of a web designer easier. In this tutorial we will install Compass on RHEL 8 / CentOS 8, with all of it's dependencies.

In this tutorial you will learn:
  • How to install dependencies required by Compass
  • How to Compass
  • How to create a Compass project

Remote connection to computers is as old as computer networks. Accessing the graphical interface (GUI) is a convenient way of working on a remote desktop. We can leave our graphical programs running and working, and we don't need to keep the session open - we simply reconnect when we feel to do so.

VNC server is well-known graphical session server enabling remote connections that we can run with a non-privileged user. This way many users can access their own desktop on the same machine remotely, and will not block each other (apart from maybe using up the resources of the remove machine).

In this tutorial you will learn:
  • How to install required packages.
  • How to setup and start the VNC server on RHEL 8 / CentOS 8.
  • How to connect to a graphical session remotely.
  • How to run graphical programs in the xterm session.

Using the systemd command hostnamectl is the most convenient way on how to find the version of Redhat Linux installed. Red Hat Enterprise Linux Workstation users can also retrieve Redhat Linux from graphical user interface.

For more detailed options visit our guide on how to check RHEL version.

In this tutorial you will learn:
  • How to find Redhat Linux version from GUI.
  • How to find Redhat Linux version from command line.

Wireshark is an extremely powerful and useful tool for any network administrator to have. This article will cover the installation part of Wireshark on RHEL 8 / CentOS 8.

In case you need more basic information or usage examples on how to engage with Wireshark visit our Basics of network protocol analyzer Wireshark On Linux guide.

In this tutorial you will learn:
  • How to install Wireshark as GUI application on RHEL 8 / CentOS 8.
  • How to install Wireshark as command line tool on RHEL 8 / CentOS 8.

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