Linux – List installed package/s and its/their details [New Question]

A quick question, answered on Heelpbook, about “Linux – List installed package/s and its/their details”, a useful activity also to extract needed packages installed on Linux and backup the list for future reference. Read More …

Find Apache httpd.conf/apache2.conf Configuration File [New Question]

A quick question, answered on Heelpbook, about how to “Find Apache httpd.conf/apache2.conf Configuration File”. This can save time when there’s need to configure an existing httpd/Apache web server already installed on a Linux system. Read More …

Unable to resolve host {hostname}: Name or service not known (Linux)

The “Unable to resolve host” on Linux systems, while using sudo or apt-get on Terminal or on headless configurations could be annoying. The fix for this kind of scenario is simple and involves the system hostname. Read More …

Ubuntu – What is netplan?

Since Ubuntu 18.04 LTS has switched to Netplan for configuring network interfaces. Netplan is based on YAML based configuration system that makes configuration process very simple. Using netplan gives a central location to describe simple to complex networking configurations that function from Desktop to Server and from Cloud to IoT environments. Read More …

Linux – Disabling a webcam or USB ports

Disabling the access to a specific USB device or storage by terminal, in Linux Ubuntu, can be quite useful sometimes, so here is a specific article: disabling a webcam or USB ports, on Linux. Read More …