Clear HSTS settings cached in browser (Chrome, Brave, Firefox, Safari, EDGE)

HSTS was created in response to an HTTPS vulnerability that was discovered by computer security researcher Moxie Marlinspike. With HSTS protocol, the website forces the browsers to open the website strictly with HTTPS only. In this article we can see how to clear HSTS entries cached in browsers to get access again to websites that have been refreshed server-side (certificate renewed or CA changed) or for corrupted entries client-side. Read More …

Java (JRE/JDK) – Check version installed

The Java development kit (JDK) contains tools for Java development, and the Java Runtime Environment (JRE) contains a JVM to convert byte code .class to machine code, and execute it, in short, the JRE runs Java program. In this this article we will see different methods to check which version is installed on a Linux/Windows system. Read More …

Linux – Zip (archive and compress) multiple files [New Question]

A quick question, answered on Heelpbook, about “Linux – Zip (archive and compress) multiple files”, an activity quite common on any Linux system when we dealing with downloaded archives and organizing stuff. Read More …

SQL Server – SQL Attach DB: Could not open new database [New Question]

A quick question, answered on Heelpbook, about “SQL Server – SQL Attach DB: Could not open new database”, an error quite common while moving or migrating SQL Server databases between servers. Read More …

Powershell – Extract Files from ZIP Archive

Starting with PowerShell 5, cmdlets like Expand-Archive can extract the content of ZIP files to disk. However, you can always extract only the entire archive. Luckily, there are other methods to extract, not only, from .zip archives, specified files or folders, on Windows-based systems. Read More …