Basic OpenSSL commands you can use in your day to day job when it involves working with SSL/TLS certificates. For example you use OpenSSL to get a certificate’s SerialNumber or to verify the SAN (Subject Alternative Names).
Learn how to calculate and create file checksums with PowerShell's Get-FileHash and certutil.exe. Use this to validate file integrity in Windows (Windows Server).
Blacklist check script written in PowerShell, to easily lookup an IP address status in various blacklists (DNSBLs, RBLs)
OpenSSL comes in handy when you need to generate random passwords, for example for system accounts and services. In this short post I'll give you a quick example on how to generate random passwords with OpenSSL in Linux (Bash), Windows and PHP.
PC retrogaming how-to for 64-bit Windows - and Linux!
A useful PHP script to check if your website is up and online available. It uses PHP and cURL. This script comes in handy because website uptime and availability is important, and you want your website to be always online available.
Learn how to fix your PHP config instead of turning off CURLOPT_SSL_VERIFYPEER in php.ini and overcome certificate validation errors with cURL and PHP.
In this post I provide you various HTTP to HTTPS redirection methods, for Windows Server IIS and Linux Apache. Use these examples to your advantage to secure the traffic between your visitors and your website.
