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 …

How to use custom UserAgent with Invoke-WebRequest on Powershell? [New Question]

A quick question, answered on Heelpbook, about “How to user custom UserAgent with Invoke-WebRequest on Powershell?”, sometime useful while testing some code interacting with websites using Powershell code. Read More …

Configuring OCSP Stapling for Let’s Encrypt in Nginx [New Question]

A quick question, answered on Heelpbook, about “Configuring OCSP Stapling for Let’s Encrypt in Nginx”, that helps checking the revocation status of a digital certificate issued by Let’s Encrypt, on Nginx. Read More …

Fix Master Browser (MRXSMB) Event ID 8003

The Event ID 8003 (Master Browser) error messages, on some Windows Server systems (specially older ones) is probably one of the most searched on this environments due to the fact that this event is linked to WINS (the predecessor of DNS on Windows systems) and the Computer Browser system service (still available even on newer Windows 10 clients and Windows Server). Read More …

Microsoft Edge – Open from Run or Command Prompt

As many (almost all) applications available on Microsoft Windows platforms can be called from Run command (as even from Command Prompt and Powershell). Users who have been experiencing issues with the Start menu or Start menu search can use the Run command to launch their favorite programs, admin tools and settings. Read More …