Linux · Server

Update the nano Text Editor on Ubuntu


In this entry I will guide you to update the standard terminal editor used by Ubuntu from its classic 2009 revision to its latest release.

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Linux · Security · Server · Tomcat

Secure and harden Apache Tomcat’s SSL/TLS


Introduction In this guide I will walk through the process of hardening HTTPS connectors used by Apache Tomcat. As unfortunately the default configuration of Ubuntu 14.04 LTS using Tomcat 7 and OpenJDK 7 are vulnerable to a number of attacks and weak encryptions. You can test your own site’s HTTPS implementation against these weaknesses at… Continue reading Secure and harden Apache Tomcat’s SSL/TLS

Linux · Security · Server · Tomcat

Create self-signed certificates for HTTPS with Apache Tomcat


This entry will guide through the process of creating a self-signed certificate to use on an Apache Tomcat 7 or 8 HTTPS connector. Self-signed certificates allow secure, encrypted HTTPS connections but are not certified by any trusted certificate authority. So first time client connections will receive all kinds of warnings from their web browser. Because of… Continue reading Create self-signed certificates for HTTPS with Apache Tomcat

Linux · Server

Linux, Mac OS, Unix: File Permissions and User Classes


Using the Linux terminal (command line) I am going to explain in thorough detail the mysteries that are the Linux system file permissions for the uninitiated. I will be using Ubuntu Linux 12.04 LTS but most of what is covered should be applicable for any POSIX compatible Linux, Mac OS or Unix environment. If this… Continue reading Linux, Mac OS, Unix: File Permissions and User Classes

cygwin · Linux · Server · Windows

Cygwin walkthrough and beginners guide – Is it Linux for Windows or a POSIX compatible alternative to PowerShell?


November 2017 Update: If you are using Windows 10, I would instead suggest reading my posts Ubuntu Linux on Windows 10 how to or openSUSE Linux on Windows 10 how to which goes through loading Linux on Windows using official Microsoft services. Linux in Windows? Cygwin is an awesome tool for agnostic operating system users who regularly use… Continue reading Cygwin walkthrough and beginners guide – Is it Linux for Windows or a POSIX compatible alternative to PowerShell?