How to enable port 465 (smtps) in postfix mailserver

More and more internet access providers are closing port 25 to reduce spam except for connections to their own mail servers. If you run your own email server and have problems connecting to it on port 25, you can enable port 465 (SMTPS) in postfix as a workaround. Edit the /etc/postfix/master.cf file: nano /etc/postfix/master.cf and ... Read more

How to Build and Install OpenSSL from Source on Ubuntu Linux

OpenSSL Cryptography and SSL/TLS Toolkit is an open-source, full-featured package used in Transport Layer Security (TLS) and Secure Socket Layer (SSL) protocols to provide secure communication between client and server. This commercial-grade and robust toolkit is widely used by various programs like PHP, Internet servers, comprising the majority of HTTPS websites. Most Linux distributions come ... Read more

How to Install Inkscape on Ubuntu

For graphic designers who are just starting out in the industry, paying up thousands of dollars to Adobe for their suite of applications is a monumental task. Fortunately, there are various open-source applications looking to bridge that gap for free. If you’re looking for an alternative to Adobe Illustrator to flex your vector graphic designing ... Read more