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 …

Nginx – Enable HTTP/2

Hypertext Transfer Protocol Version 2 (HTTP/2) is the latest version of the HTTP protocol, published as an IETF standard in RFC 7540 in 2015. The focus of the protocol is on performance; specifically, end-user perceived latency, network and server resource usage. Read More …

Linux – scp transfer files (passwordless) between systems

SSH (Secure SHELL) is a network protocol that is used to login into remote servers for execution of commands and programs. It is also used to transfer files from one computer to another computer over the network using secure copy (SCP) Protocol. Let’s see how to automate, passwordless, using Public/Private keys, file transfers between systems. Read More …

Check DFS Namespaces (DFS-N) Configuration with dfsdiag.exe

DFS-N, as the name implies, is a distributed file system and it involves a number of components running on a set of computers (Active Directory domain controllers, DFS-N namespace servers, SMB file servers, DFS-N clients that are typically Windows clients, but also Linux ones). Read More …

Internet Explorer 11 – SChannel – The internal error state is 10013

You may run into Schannel – The internal error state is 10013 message if your website fails establishing TLS connection and usually this could occur using Internet Explorer 11 to connect to modern websites or portals that are using TLS 1.2 or better protocols for encryption. Read More …