SSL/TLS

Nginx TLS TCP Proxy server for tcp upstream servers

This article explains how to set up SSL termination for NGINX server and a load-balanced group of servers that accept TCP connections. And how configure NGINX as tcp proxy server for multiple tcp backends with SSL/TLS support.

Web Servers Security

Certbot - Let's Encrypt certificates on Debian server with Apache webserver

How install and use certbot on Debian system, examples how create Let's Encrypt certificates for multiple domains, how handling certbot automatic renewal. It covers a apache2 webserver configuration for using cerbot generated certificates. Setup is made for Debian and debian based linux distributions

Linux Debian Security Web Servers

Certbot and Let’s Encrypt CA

What is Certbot, cerbots commands and user guide, what is Let's Encrypt Rate Limits. How works cerbot authenticators and installers, certbot commands exmaples

Linux Security Web Servers

OCSP Stapling on Nginx and Apache webserver

To understand OCSP stapling, it is necessary to understand OCSP, the Online Certificate Status Protocol. OCSP is a protocol for determining whether a certificate is revoked (for instance, becau se its private key was compromised). Every time a browser connects to an HTTPS website, it contacts the OCSP responder specified in the SSL certificate, and asks if the certificate is revoked. If the respond er replies that the certificate is revoked, the browser blocks the page from loading.

Web Servers Networking Security

Add or Change SSL/TLS certificate in Lotus Domino

Set up SSL on a Domino® server so that clients and servers that connect to the server use SSL to ensure privacy and authentication on the network. You set up SSL on a protocol-by-protocol basis. For example, you can enable SSL for mail protocols -- such as IMAP, POP3, and SMTP -- and not for other protocols.

Security Linux

Understanding Key Differences Between FTP, FTPS and SFTP

Perhaps the most common protocols used in file transfer today are FTP, FTPS and SFTP. While the acronyms for these protocols are similar, there are some key differences among them, in particular how data are exchanged, the level of security provided and firewall considerations. Learning these key differences can help you when choosing a file transfer protocol or troubleshooting common connection issues.

Networking Security

Most secure SSL/TLS configuration for Apache, Nginx, Postfix, Dovecot, HAProxy and other

What is a cipher suite?

Cipher suites decide how secure, compatible and fast your HTTPS website is. A cipher suite is a set of information that helps determine how your web server will communicate secure data over HTTPS.
A web server uses certain protocols and algorithms to determine how it will secure your web traffic. These are the ingredients of a secure connection. A cipher suite is essentially a list of those ingredients.

Security Linux Networking Web Servers