Downgrade nodejs when needed using CLI [New Question]

A quick question, answered on Heelpbook, about how to “Downgrade nodejs when needed using CLI”, on both Windows and Linux platforms. Here two available methods (they are not the only ones) to downgrade nodejs (and npm) using command line approach. Read More …

How to generate a Diffie-Hellman 4096-bit Key in less time [New Question]

A quick question, answered on Heelpbook, about “How to generate a Diffie-Hellman 4096-bit Key in less time”. This can save time when we need to generate a DH 4096 bit key on a Linux system, usually used to harden a SSL/TLS configuration for web servers, but also used for SSH, IPSec, SMTPS protocols. 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 …

Find PHP (php.ini) Configuration File on Linux [New Question]

A quick question, answered on Heelpbook, about how to “Find PHP (php.ini) Configuration File on Linux”. This can save time when there’s need to configure an existing PHP installation 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 …